SCIENTIFIC ABSTRACT ZATSEPIN, G.T. - ZATSEPIN, N.I.

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• Collection: Scientific Abstracts
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• Release Decision: RIF
• Original Classification: S
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• Document Creation Date: November 2, 2016
• Document Release Date: March 15, 2001
• Sequence Number: 8
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

Bergey Nikolayevich Vernov (On His 50th 5/053/60/072/001/005/005
Dirthday~
B013/Bo6o
interaction of cosmic rays with matter and obtained an insight into the
mechanism of the formation of secondary cosmic rays in the atmosphere.
It became thus.possible to describe this process quantitatively. On
Vernov's initiativep elementary processes of the interaction of
10 11 -1013 ev particles w Iith atomic nuclei'are being studied from a
stratoplane. Under his supervisiont a first-class laboratory was estab-
lished at Moskovdkiy gosudarstvennyy universitet (Moscow State Univerei-
ty),to serve for research work on interaction of ultrahigh-energy par-
ticlets (ioI4 - jo16 ev)-with matter. The USSR network of stations for
the permanent recording of cosmic rays was established with his partici-
pation, and is now operating under the IGY program. In acknowledgment
of his scientific achievements, Vernov wan elected Corresponding Member
of the Akademiya nauk SSSR (Academy of Sciences.USSR) in 1953. He was
awarded the Lenin Prime in 1960 for his discovery and research of the
outer radiation belt of the earth. S. N. Vernov is the head of the
NII'YaF MGU "entif ic Reseaj:Qh -Institute of NuclaALr Physi an of mopcow
State Universjt4 j and rune the special. section of the fizicheskiy fakull-
tet MOU.(Department of Physics at the MGU)& There are I figure and
37 Soviet references*
Card 3/3

ZATSEPIN. G.T..-DEDEN
L.G. GORMINOV, N.N.,
"Development of*Air Sh1m_ie'i,6 and Nature. of Pr.imary
Component at Ifigh Enorgiesp"
report prosinted at-the Intl. Conrerence on Ccism:Lc Rays and
Earth Stormsp Kyoto., Japan, 4-15 Sept 1961.

-ZATS!TIN,- G.T. -CHUDAKOV., A.'ME.j I MPTFROVA,, N.V.., WYKIN; T.L
"A'Search for Photons Ath the Energy of lo13 ev. Fron, Discrete
Sources.of Cosmic Odiation,11
report presented at the Intl. Conference on Cosmic Rays and
Earth Storms, Kyoto, Japan", 4-15 Sept 1961.

IMM
ZATSEPINt G.T., HIMILCHI., YE, D.,
"Energy and Angular Distribution of M-1-rzsons at Or-cat Depths Underground,"
r6p-ort pr6sented'at the Intl. Conference oh Cosmic Rays and
Earth 5tormsp Kyoto) Japanp 4-15 Sept 1961.

ZATSEPIN, G.T. -XUZYJN2 V.A*il--
fffleutrinou'-in Cosrdo Rays and Possible Types of
Related Experimentso"
report presented at the Intl@ Conference on Coamic Ras and
Earth Stormp Kyotos Japans 4-15 sopt 1961.

27205
9105616110411002102"10213
B125/B136
AUTHORS: ~'Zataepin, G, T., Chudakov, A. Ye.
TITLE: Methods of seeking local sour.ces of high-energy protons
PERIODICAL: Zhurnal eksperimentallnoy i t eoreticheskoy fiziki, v- 41,
:no. 2~ 19619 655-656
TEXT: The method prcpgsed by CC-30n4 for the localization of protons with
12
,E^,10 ev or, the celestial spbere is based or- the measurement of the
relative delay times of the passage of a fTor-,'j of aratmospheric shower
4
through sointillators., The authors believe that shcwers o~a%ised by 10S2_,'-
le 9-~()--3
protons In the solid ang -atorad -.an bo recorded more reliably ard
considerably more simply by using the Cherenkov radiation produ.-ed by a
shower inthe atmosphere. In doing so, the light fl 'ash is recorded b'Y a
photomult,~.plller plav-ad In the fo.:.al poin', of a big parabolic mirTor. In
ordor to aoparute tho ahowora a(;cording 'to. the pulao ~oinoidencoI3, it ifj
.advisable to use sever'al parab,:.Ioids in parallel arrangem-ant. A primary
photon of ', 012 ev yields a flux of --, 50 quanta/m2.. To rez;oTd su--h showers
the parabsli,:; mirror should have an area of e.1 4 M2. In the al.~thors' view,
Card 1 /3

5/056/61/041/002/027/02E
Methods of seek!Dg local sour-.e5 B125/B1,36
.the method described here is tatter suited for the detection of photons
coming from known radic-astTonomical objects than the Cocconi method. Va -a rA.
the measuring apparatus is mounted on a mountain and larger mirrors are
used, even primary photons of lees than 1012 ev, :)an be recorded. Another
advantage.of.the authors? method is the relatively large effe.,tive area of
shower recording(of an order of 105 m2),.wh-ich ensures high statistical
accuracy,. Using experimental data on cosmic rays in 'che atmosphere,, th6
intensity of-a photon flux with an energy Ureater than E at a distanze R
from the.object is.estimated to be
~'Y ...1 ' 2 (.-v 10" erg) ie the minimum
I (> E) 0- 5r 3
min E R Cos, M; where E min
energy of cosmic-ray parti~~Ie3 in the obj,;:,,t; a 4~s tba' speed of liglht;
and M are the density of.cosmic-ray energy and tho mass of gas in thl
object respectively.. This ~ form--.zla is valid -if the energy spe-.tr-.,m of PrV
.cosmic rays in radio nebulae has the Pame shape aa in the neighbol-ho.-,d of
the earth. The expeuted p,:!.-tion of-shower-s originating from photons within
the solid angle 10-3 is given by
W (1 1/1"0 . . - - 9 2
A 5-10"",C MR_-";z&2-J0-H MR This formula is valid on
Card 2/3

Card 3/3
S/056/61/041/002/027/028
Methods of seeking localsources ... B125/B138
2
the conditIion that ECos- H /8n, where H indipates the magnetic-field
strength. In the case of the crab nebula, the following relatior results
frora H = 3'10-3~oe, M 1o33 g, and R - 1022 cm: 6 - 2,1o-7. For the
.center of the Galaxy, = 5-1o-4 follovis from H . 1o-3, 11 . 1o38, and
R W 2.1022. It is seen that even the most favorable estimates yield onl:~ V
very small values of'photon -intensity. Since the spedtrum of cosmic
in several objects shows more high-energy particles than in themeiCh~,#,_
hood of the earth, and since most astrophysical quantities are rac~,u7-at-?
only up to one order of magnitude, it woi,.Id be useful to study the m-at
promising objects (center of the Galaxy) radio nebulae) by the method
discussed here.. There are 3 Soviet references.
ASSOCIATION. Fizicheskiy institut im. P. N. Lebedeva Akademii nauk SSSR
(Physics Institute imeni P.N. Lebedev of tliq Acadenm-r cf
Sciences USSR)
SUBMITTED: June 6, 1960

31778
3/056/61/041/006/024/054
B102/B136
AUTHORS: Woopint Gi- T#j KuzIminq V, A.
TITLE: Generation,of,a neutrino in the atmosphere
PERIODICAL.. Zhurnal eksperimentallnoy i teoreticheakoy fizikit v- 41,
no. 6(12)9 1961, 18.18-1827~
TEXT,:-.,'Calculationa are given for the -energy band, angular- dietribtttions of
neutj~inos.produced'in the atmosphere in the decays n _,~p + Y . and
+ The neutrind spectra *ere.calculat d With. Vill6wance for.
ji ' . - - w .0 - A
muon energy losses and angular.distributions.6f,noutrind fluxes in the
atmosphere. Assumingthat all.eecondary'particles,have the same direction
of, flight'as the primary onna, 't regarded as one..
-he problom may be
dlm6nbionul, In thia approxima'tion the ri,?utrino spectrum from muon deoay
at a depth x in t 1) atwouphero and at an angle e to the vertical i6 given

t5 t5 9 f -
exponent of-tho-'integral sy'ectrum,of. pion'.generation, 1: (a) - critical
pion energy at Which- the plon:deoay probability at x-0 equals -the
probability of nuclear intataction..; At. sea lovel and vertioul flux,
to
O)d6-' 300
+ g)-1,2$ de
t0.< 4 <
-The.total flui-:of.neutrinon *ith more than 1 Bev was found to be
2 1 1
8.9-10- bM_,8eo7storadian- :Thiolis more than double the value found
by Is M; Zhelenykh and M4,.A6,Markov (Fre'rint OIYaI, 19601 Nuel. Phya.,
P
Car.d-2/7:

.1 1." - I ~; 1 . I - I . - f : w - - t . . . : . - - %,_; ~ I ~.. ~ -jjtw~ --,- -, .. '. --2;,
.. i ~~ --
.:;:.4 , s - , . " - t 31"~ : i~ ~ : - T.-,* ,
I ~l ',.: ~ 7 ~ i~ , i
1 1 . - r, -, j --, ,- ~' ! -.- I; -- , -'ill',,
. . . - ', . , - 4.!~,. ~,~ , -, , I
~ I : ~ ~ -it I A

: :.- ; , . I I ~ ", I I h:.-~~-;.-. -~; ~ -,-, '.. - -
. . , , ,
- c! "; V~ ;~, ,
- -. I -A, ,., . ~'k
.. ~ 1. - .5,

Generation of a neutrino in the ...
317718
S/056/61/041/006/024/054
B102/B138
and Py(>i.o) 2.o6.lo- 2 am -2 see -1 ateradian-l.. Allowance for polarization
increasesp tho.in.tonsity of muon deoay~noutrinoa by */5~- Muon onorgy losses
have only a weak effect. *on neutrino production. The apectra were
normalized using earlier experimental values.
For 1. ..0-159 am- 21sec-1 sterad -1 Bev-1 andV 1.62 the calculated muon
9 12
.spectrum agreedwith experimental values in the energy range 10 -10 ev,
The neutrino fluxes in the atmosphere are anisotropically distributed;
anisotropy,~ PLO(F,,n/2)/P1(EtO) increasen with neutrino energy. It tends to
10 for pion decay and to IOL ~x,x off"/2)/L(x,xefflo ) for muon decay at
,0~\1012ev. The inaccuracies in the results are due to the ambiguity of the
7-meson contribution t'o neutrino flux, although it is highe'r than that of
pkans. The total.vertical neutrino flux with >1 Bev is five timos as
high as est'imated by Zhelezin and Markov, who only considered pion decay.
An experimental arrangement (Fig- 5) is proposed for recording high-energy
coomic neutrinos. It consists of'three mosaic layers of scintillation
,counters (1,20) which record the.muon path. The absorbers (a) are used
Card 5/7

31778,
S/056/61/041/006/024/054
Generation of a, noutrinolin the ~B102/B138
.Lor determination of the threshold energy. Yu. S. Kopysov and V. A. Kuzlmin
are mentioned. There are 5 figures and 15 references: 9 Soviet and 6 non-
Soviet. The four most recent references to English-language publications
read as follows: F. Ashton et al., Nature, j-8j, 364, 196o; J. Duthie et al.,
.Preprint, 1961; Y. Yamaguchi. Prog. Theor. Phys., U, 1117, 196o; LT. A.
Markov, 1. 14. Zheleznykh. Nucl. Phys., in print.
ASSOCIATION:- Fizicheskiy institut im. P. 11. Lebedeva.Akademii nauk SSSR
(Physics Institute imeni P. N. Lebedev of the Academy of
Sc iences, USSR)
SUB14ITTED; March 8, 1961.
Card 6/7

7/7

37552
0&0 S/048/62/026/005/018/022
BIOS/BI02
AUTHOR: .__Zalaepin, 0. T.
TITLE: Fundamental characteristics of high-energy'nucleon collisions
P:M,10DICAL: Akademiya nauk SSSR.' Izveqtiya.'.SOriy4 fizicheakaya, v. 26,
no. 5,'1962, 674-681
TIIXT; A review is given of nucleon-nuoloon procoascs conaidered
kinomatically with omDirioal models. Reoulte. lligh-oyiorg-y nucleon-
nucleon collisions are usually peripheral (E > 3-1010 ev) and proceed on
0
the basis of n-n collisions. The excited meson cloud is characterized by
the equation of state PA < 1/3 (p - pressuref L - energy density) of the
substance concerned, and disintegrates isotropically to produce low-energy
pions of about 0-5 Bev. The nucleons have a "mellow" field of strongly
interacting pions which form clusters of excited mesonic substance.
There are 3~figured. The most important Enalish-language reference in:
~Petsrs B., Proc. cosin. ray conf. Kyoto.. Japan. Suppl. to v. 17 of j-
-Phys,. Soc. Japan.
Card 1/1

"/048/62/026/005/020/022
Nature of the primary component of B108/B102
a great number of. particlec vary loco than do those of showers involving
fewer particles. The decrease in fluctuations observed at a:higher qxpondn-s,
in the spectral'law,indicates that heavy nucleiare the predominant
primary,- component at high energies. There am2 ftgures.
Card.2/2

S/04 62/026/006/00'9/020
B125%102
AUTHORS: Zheloznykhp I M., Kuzimin, V. A.,
and Markovp M: A.
TITLE; lfeu~-rino phyaics of high energies in cosmic rays
PERIODICAL: Akademiya nauk SSSR. Izvestiya. Seriya fizichookaya,
v. 26, -no. 6, 1962P,730-741
TISXT Some posoibilitiee. of neutrino physics in cosmic radiation are
-The enerTj spectrum and angular distribution of the products
.evaluated.
(e.g. muons) of cosmic neutrino reactions with matter can be calculated
accurately*. The low inteneity.of the noutrino flux njo0unitatoo uaing
large-area meaeuring,equipment, e.g. eeve~ral.serica of acintillatora.
11.1tions may reoult from the reaction ~(a)
(b) v+p-*n+lt+(c+),
(c) 'v + n + it" W),
+
Card 1/3

B/048/62/026/006/009/020
Neutrino phynicsof.high energies B125/B102
In the case of point interaction, the reaction (la)~has the cross.
section a.7,' 1.5-10 -38 E cm,2 5.10-38E am 2 (F, in Bev) holds
v and dy 0. r~ V
for (1pbqcfdqe on the energies-increase to above the Bev range, the
cross sections 65~e modified.by a form factor. The four-fermion inter-
action involving baryons and also total interaction can be dut off by them
.qof3tadter form factor. In this base, weak interactiona could supply.
information as to the usual'electromagnotic form factors of the nucleon.
If, ucinr, the laboratory byutem$ the orons section of the v + N-+ If' +
,type reaction in not cut off up to neutrino energies of Ev- 300 Bev,
an apparatus with an active area of 300 m2 in capable of recording
annually 70, 50 and 30 muons at thresholds of 0.5, 1 and 3 Bev, respective-
ly. In the case-of cutting off with the 11ofstadter form factor, 12, 9-and
.3.5 events are recorded annually at thresholds.of 0.5f I and 3 Bev,
respectively. In connection with the postjible.existence of an inter-
mediate boson,.reactions of the type
W +
;*,W (5)p
Card 2/3

S10481621026100610091020
Neutrino physics of high energies B125/BI02
V + 1; W` P
,V.+ P. n +
are of interest. When the.neutrinos vIt and ve are of different natures,
the reaction' (5) can be, due only toY neutrinos from muon decay. The
e
result obtained by J.,C. Barton (Phys. Rev. LettrB- 5, 514, 1960)
furnishes no proof for the absence of an intermediate boso n,with the
mass of the X-partiole. Intbe first stage of a subterranean e*xperiment
the muons produced during the reactions (1) will be'relcorded, an electrons
are much more difficult to.record. There are 3 figures.
Card 3/3

~ . . - ~,- , , 4~1 1, T ~,

AP0024040 G0'uwE CGUE1 UrL/w4S/G5/02q/G0q/lT40/lT42

AITMOR: Volkova L.Y. ZAtmepin, G.T.

nono

TITLE: Enorgy anectre of muemia and electronic neutrinom In thr atmo5phere 'r-1--port
All-Umi--lr Cn'rfel-ence on Cn-,rt,l Ft;t3r PT-~-f5lcm at ApetItty 24-31- ll.ug-ufft 119,64,
SOUP= t Ali R3S R. Sort" firnalt*sketwo, v~ 20, W. ~, 1965, 1740-LT4?
I C TAGS : secondmr-y cc-m-nic rZT, rM-utr'-lM--,
gp~cctml cncrg7 citstrIbuttlarz, r.:2galar dt'14
trib,itlon
A it.,; r!z,,. t.-r :Th;-
mriCular listrib:itlonq of,
anA tr',ine~-itrim)s in Ule tjjl~
o (I II% i t~~nor- arlme -r-i_ K-t- and ~-o thp ari-c-
mc-l-~Tx~l as negaLlve pl~rvq arru Lrlal: Ln-f- pr("GUCT I cm 0 f F,> pV2 and a photon is calculAted for
different proton energies and for several photon gas temperatures (T - 2, 3# 5 3.0,,
and 30). The results show that at proton energies 1020 OV.0 "on interZtions
-with the photon gas become quite frequent: vVY a* 3DI-years. ~ This means that at the
age t:~ 106 of the cosmic rays with energied-imder consideration, their initial spec-
-Card

'ACC NR, AP()0313u-
trum should be cut off in the high-energy regionx even if-the accelerution. mechanii=
had been sufficiently effective In producing particles having these e=Ziez. The
-iful-ernicn-of --the -exact-form- of Ab-e cosmic-ray spectrum in the energy region Ep;~ 3DJL9
j the ex-
ev-calls for a detailed ana4ais combined witN-OIlowance--for-their-generation
pansion of the Universej, and the interaction of the cosmic. rays with the, photii -gas at
each stage of evolution of the.Universe, The form of the spectrum will depend on
which state of evolution of the Universe the cosmic-ray paxticlen of superhigh energy
v6ve geheratedp and how rapidly the generation took place. it Is shown that a study
of-the energy spectrum of the cosmic rays near its upper lAmit yields information not
only on the processes of their generation.* but aloo on the evolution -of -the Universe,
The influence of the change of the photon-gas temperature T on the position of the
limit of the cosmic-ray spectrum and the disintegration of % particles and other nue-
lei, as they pass through metagalactic space are also dinaouseedo aLnd it in deduced
from the rather large cross section of the latter process that the mtelei ahojild
vanish completely from the cosmic rays at energies above 1019 eye Orig. exto has:,
2 figures and 2 formulas. (021
0,141 ATD POSS*
SUB CODE: 20/ SUBM DAM 26YAy661 ORIG MW: 0021- OTH REF3 0o4/ ATD Poss.
OM
5061
MW

. ..... . .......
77
lvir(i)- ~-IJP(G)
C NRi A11602948r,'
SOURCE CODEt -UR101901601000100il~MIAOOS
":-AUTHOR:. Zatooln. 1, K.___
r
TITLE: Experi nental investigation of the t!M2gMpby of an Inhomogenecus two dimensional
~`maanetfo field in the conducting forromape-tio and nonmagnetlo media and the verifIcation of
basic theoretically derived relationships. 2, The measurement results and
numerical analysis
~~SOIMCE: Ref. zh, Mektronika 1, onergettka, Abe. SA58
REP SOURCEt (Tr.) In-ta fiz. me'tallov, AN SSSRp- Vyp. 24, 1965, 281-297
4j
TOPIC TAGS; iopography, nonhomogeneous mapetio field, magnetic field, field theorY.
MIM
eric analysis, ferromagnetic material.
:-ABSTRACT: - Experimentally measured and theoretically derived topography and the frequency
characteristics are given of the normal and tangential components of the secondary magnetic
field as a function of the observer coordinates and the frequency of the primary field for a
plane forromagnetic object magnetized by the fleld set up by a linear, current conductor. The
shifts between the nuodma of the normal components of the primary and the secondary dynami
fields are found. Relationships aro established between the eddy current fleld,, quasimagneto-'
static field, and t6 measured secondary field. The vector diagrams and phase shifts are
Card
tMC2 518-12-001-24

L 08583-67
ACC NR, AIR6029466

T: studied for the primary and the normal and tangential components of the secondary field for
a forromagnotic material as functions of the space coordinates and the frequency of the pri-
mary fiold. The samo invontigation is carried out for a conduotiag nowndpatto plate. Tb6
frequency and other iharactoriottoo are studied for the tangential component of the flold avor-
I-Translation of
Apd over the croso ooction of tho forromagactio and nownspopo objo6to#,
'.
.
abstract 23 Illustrations and bibliography of aMasi, 7 Vo6m summ
i;77 7
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pay. I 1w mcrh. strmstim it( IN,
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Ho thIZ List of Riiadjall Accessions, Library of Congress, July 1952. Unclassified.
4

Dis~ertation: "Production of C;---rbonized Plocks for Wolls and Fvcings.ll Cand -ech
Sci, Inst of Constructicn Eng:pinqering, Aaade7y of Architect-ire U-53'3R, Yoscow, 1953.
(Referativnyy Zhurnal-KI-Iriya, To 5, Var 54)
SO: U94 243, 19 Clet 1954
A
RIM

~L tii~,-Lu it. 6.
LEYPJK'fj V. E. Inzhoner i ZATLUOU, 1. I'll. Dizh., BL1HL3--TSX1Yj V. M. Inzh.
GRINGAUZI it. 1. rnzho, ZjVfSEP14N N. S. Inzh
Nauchno-issle8ovatellskiy instituL po stroitel'stvu Ministerstva neftyinoy
promyshlennosti.
RAZRABOTKA I VNEDVA,-~'IYE PROlMlITIE-1,11MY TEMIN-1-Mol"M POLUCHENIYA TEPLOI ZOLYAT SION-
NyKil BEZODUTIGOVYK11 DD!XPl-l*,'-lOV)FKll MATE1141ALOV Page III
Collections of Annotations of SclentLfic Research Work on Construetton, compl2ted
In 1.2
50, "Oscoir, 1951

UTSEM, K.
ZATSEPIM. K. S., Inzhaner i GRINGAUZ, R. I., In%h;
Nauchno-issledovatell'skiy institut po stroitelstva Ministerstva nef tyanoy
promyshlehnosti
IZUCHENIXE LENINGRADSKIKH,I,URALISKIKH DIATOMOV
Page M
SO: Collection of Annotations of Scientific Research Work on Construction,
com2leted In 15~50
Moscow, 1951

VIP WA ffl pt7
GIL'MAN,_T._P_._;__ZATSEPIN, X.-S.- 'PUZAKOVA- N_ DBUKHTIYAROV N. T
Device for studying the kiretics of tho wetting of glans fillers
with binders. Plast. ma!3.sy no.S:~)-55 165. (14IB 18:9)
61

ZATSEPIN,
Production and use of polyvinylcbloride p1peo In the German
Democratic Republic. Stroi. truboproy. 5 no.10:39-31 0 ,6o.
(MLRA 13. 10)
(Germany,Rast--Pipe, Plastic)

3761jo
S/143/62/000/004/002/006
D238/D307
AUTHORS: Zaryankinp A.Ye., Candidate of Technical Sciencest
and Zatsepin, Y1. F. , Engineer
..TITLE: influence of losses in the working disc on the
efficiency of a radial-axial turbine
PERIODICAL: Izvestiya vysshikh uchebnykh zavedeniy, Energetikap
no. 4r 1962t 79 - 84
TITLE: Due to the relative absence of direct experimental data re-
--a
-rding the influence of the working disc on the efficiency of a ra-
6
dial-axial turbine and bearing in mind the extent to which the aero-
dynamic properties of the working disc largely govern the efficiency
of:the turbine stage, a study is made of some theoretical concepts
and experimental-data affording an assessment of the influence of
the loss factor and involution of the discharge edges of the working
disc on the efficiency of this typo of turbine.-Efficiency is stud-
ied on the -basis, of
2
~2(c a
luu e2u'2 0
~Card 1/2

-/143/62/000/004/002/006
'The influence of losses in the ... D238/D307
where clu and c2u. is the peripheral projection of the absolute velo-
.cities; u is the peripheral velocity-at inlet and discharge from the
0
disc; c,,is an arbitrary velocity corresponding to the heat trans-
fer ava able. Since this equation is generally complex, -the study
~is:made on 'a stage with relative velocities connected by the rela-
tion wI W 0 The effect of disc losses on turbine stage efficiency
2 t :-- 11
is largely a function of the degree of radial orientation of the
disc and the blade angle.-The effect diminishes.markedly with a
small entry-to'-discharge diameter ratio V and increased blade egress!
,angle. In radial-a:xial- and radial stages with a geometric Darame-
Uer -v < 0.4 the straight radial blade with egress angle 906 is the
.most effective *and the profile is significant: only for V;:-0-4. Ra-
dial stage efficiency is best served by designing for minimum reac-
tivity taking P = (1.1 to 1.2) x (1 - _)2),
0 here x., is the ratio of
peripheral apued at the tip of a disc to the arbitrary velocity coo
There are 5-figures.
ASSOCIATION: Moskovskiy ordena Lenina energeticheskiy institut (Mos-
cow 'Order of Lenin' Institute of Power Engineering)
SUBMITTED: May 4, 1961
~12 Ir
_V.

ZARYANKIN, A-,Ye.- kand.tekhn.mlik; ZATSEPIN,-
Effect of gaps between the housing and rotor wheel on the efficiency
of a Francis-tYpe turbine stago. Energomashinostrcoaie 10 ro.'.-.
33-35: M.- '64. (WRA 17:4)

37554
L, 2 12, 0, S/096/62/000/005/001/009
E194/L':1o454
AUTHORS: .,Zaryankin, A.Ye,, Candidate of Technical Sciences,
Sherstyuk, A.N*, Candidate of Technical Sciences,
Zatsepin. MIF',.Engineer
TITLE.: Solna ways of increasing the efficiency of mixed flow
turbines
PERIODICAL: Teploenergetika, no,.5, 1962, 32-35
TEXT: At low pressure ratios (1'.7 to 1.8) the efficiency of
mixed flow turbines is around 80", irhich it is important to
increase because small gas turbines of this type are widely used.
When the ratio of the blade ividth to diameter is below 0.0.5
appreciable losses occur at discharge from the nozzles and runner
and due to disc friction. Nozzle efficiency can be increased by
meridional profiling,thatismachining the blade with a twist in it,
which reduces the speed and final pressure drops in the region of
maximum curvature a .f gas flow. However, in some cases
moridional profiling,. wbIlst reducing the losses- at subsonic speeds
may increase them at s6~ersonic speed's and" whilst potentially very
advantageous, the subject requires much further experimental study.
Card 1/3

5/096/62/000/005/001/009
some ways of increasing E194/z454
Under certain conditions the use of profiled shrouding-in an
experimental turbine increased the efficiency by 4%. When the
blades are very wide the spatial distribution of flow becomes
important and under unfa.vourable conditions, although the flow is
'Zonerally convergent, there may be divergent regions in the runner
and tho dischnrge volocity distribution may be very irregular,
particularly when dischargo volocity losses, aro high.
Meridional guide vanes are usually designed to onjure the
requisite change in cross-sectional area, but it is also important
that they be smooth and with gradual changes of curvature, The
runner:blades too should have very gradual changes of curvature
and should not have straight.sections which can give rise to zones
of divergrent flow. Runner friction losses may be reduced by
increasing the pressure drop in the stage.. The value of the
angle al at which the flow breaks away deponds mainly or, the
number.-of blades and relatively little on the twist of the
discharge edge or the shape of the mer�dlonal guide. Discharge
velocity losses may be high in a radial-axial stage even under
design conditions-and, therefore-, the,volocity of discharge should
Card 2/1

-s/o96/62/OOO/OO5/OO1/O09
-'e - ways. of increasinr Eig
S
0m 4/E451,
be convortod inthe subsoquent diffu-qer section, If the
turbine discharges to atmosphere a diffuser can reducethe
pressure behind the runnor so incroa.5ing the actual. ntaro hent drop
cind 41101-cafAlig atage orricielle-yo Axially symMatrical dirrumben
directly beyond the:runn(!r are.best but the discharge flow is often
irregular and then diffusers -%,rhich operate wall under uniform flow
conditions are not always; best. For instance, in practical tests
a curved diffuser was found better than a conical one although
static tests showed them to have equal performance, There are
7 figures.
ASSOCIATION: Moskovskiy energetichaslUy institut
(Moscow Power Engineering Institute)
Card 3/3'

2764B
S/024/61/ooo/oo4/oo6/025
E.194/E155
AUTHORS: Zaryankin, A.Ye., and Zatsepin, M.P.. (Moscow)
TITLE: The inf luen.--,e of, the. radial gap on.the efficiency of a
radial-axial turbine
PERIODICAL.,.Izvestiya Ak&dainii nauk SSSR, Otdaleniye tekhnicheakikh
nauk,~Energettka L avtomatika, !9619 N0.4, PP. 32-36
TEXTs The radial gap between the discharge edges of the
-nozzle gear and the inlet edges of the runner Is often selected
arbitrarily. on the one hando as this gap is increased the
velocity distribution beifore the runner becomes more uniform., which
reduces the inlet losses and also reduces the losses in the ducts
between the nozzlD blades* Howe'7erj intraasing the gap inoreases
frictional lozaes in tho.flow moving ovor the and walls of the
annular ducts. In order to assets the orderof magnitude of each
of these kinds of lose, the flow between two.plain walls in the
annular gap is considered mathematically. Theory and static tests
on radial turbine nozzles show that at-low.Mach numbers the flow in
the annulus moves approximately in logarithmic spirals and the
current lines are expressed in polar coordinates by the relationt
Card 1/6

27641, S/024/6i/ooo/oo4/oo6/o23
The influence of the radial gap on ...
axp(- 1P ts
where: ro is the radiua of the discharge edges of the nozzle;
m .1 3.Ls the angle of dis~zharga rf flow from the nozzlesl r is the
instantaneous radius of the-line of flow; ~tp is the polar angle.
The change of speed along the flow line is determined by the
fo'llowing expressions
xPly tK a,)
where c0 is the sifed aA disct-arge from the nozmla.
~Knowing the flow linen and.the speed, the following expression
botweeii-the- spo,e,d -and _thj)~ Instantan-Rous -length of- the segment
'71of the 'logarithmi-c spi-ral ccnt-,iined between radii ro and r is
given by:
13 (5)
c0 i sin,a,
The following expression is t1in derived for the increased thickness
of the layer of.loss o f impu 1.9 1a*lang a flow line in'the gap:
Card 2/ 6

2-7648
The influence of the radial gap Ion S/02W/6i/ooo/oo4/oo6/o25
E194/E155
0.342
J/_Re, -a:Ln
where IN3 in the length of the radial gap- From these
expressions the change in impulse loss with change in radial gap
can be calculated. The curve cof
.1,9 in a If
-Re
plotted in Fig.2 shows that as the gap length increases the thick-
ness of impulse loss layer in the gap first increases markedly,
but later the increas-6 slows off, and when Z&3 is between 0.3 and
1 , S7 00 V-Rel min OLI cIIters only.by 0.05. _ This shows that
the gap affects the fritlitlLonal losassonly in the range of E3
from 0 to 0.3. This characteristic is of general validity as it
does not depend on the Raynolds number or the flow discharge angle
.a,.- The method of calculating the change in thickness of the
impulse loss layer.in the~annular-gap in any specific case is then
explained. in particular, a corr-e--.tion factor k is derived to
Card 3/ 6 3

27648
S/024/61/ooo/oo4/oo6/025
The influence of the ra-dial gap on E-94/E155
allow for the work of pressitre forces which is usually not allowed
for In caltulating losses P.-om the final characteristic of the
boundary layer. -The follcwing expression is then derived for the
coefficient of energy loso in the gap:
3~6 0) k
3
~3 a - -_. (12)
where: 0 is the degreb of reaction of the tnrWt; f/r,
is the relative height of the nozzle gear. To faAlitate
use of this.formula, Filg.2 shows the relationship
00' kT 41 R e.Igin a.1
as a functioh of the j,,ip length &3/rl.' - 71.ese curves
permit ready calculat~-.:.n of additAonal frictional 'kosses in the
gap. Similar calcule-`.Ions for the titrbulent boundary layer give
the following expresn-ons for:the thii;kness of the ".mpulse lose
layers j.oo656 1 1/7
4/7 +
sin (Xi
Card 4/ 6

27648
The influence of tharadial gap on toi S/o24/61/ooo/004/uO6/o2~
In using expression (12), is determined by Eq.(13).
Comparison of curves plotted by expression (12) with experimental
data shows generally good agreement but expression (12) gives a
greater drop.of efficiency than exporiment. Tho roasorn for this
.are discunfied, As the gal) lerigth 'in incroased, the part played by
the nozzle gear continually diminishes, since the main acceleration
of the flow istransferred to the radial gap.- With large gaps,
nozzle guide vanes should be used only to give the flow the
required dir-'6ction in the*annular gap, In this case formula (12)
gives an accurate solution of the problem and it may be used to
consider the question of use of bladelesa nozzle equipment. Test
results are quoted.sihich jahow that the use of b1ndeless nozzle gear
gives a gain only for stun.11 values of Reynolds number. floweverl
with rolntively'fshort b1ndos the uso of profiled shrouding affords
considernblo advantages ass comparad with bladelons nozzle gear.
Thus it in rocommanded to une blRdolonfj nozzln gonr tit low npood"
what% C' > 0. In other ciAciam it in bettor to have nozzle genr
Ifith blad os and aminimum gap, using profiled shrouding.
There are 5 figures and 3 Soviet references.
SUBMITTED: March 17, 1961
Card 5/6

V 019~& 1W(kV1-WM_Vr_2/gW(Vj NO I'T
ACC-HR1--AF6012434_7_1-_'-_ _-SOURCE -CODE$ UR/0143/65/009/01 1/0ON/
_9935-
.59
AUMORS I 76ELankin _ A Ye. (Ceiididate of technical scienceep Docent); 'Zats2ginp M. F,
(Candidate, of technical uoienoas)-
ekiy enargeticheskiy inatitut)
ORG: Moscow Power Engineering.Inatitute (Mookov
TITLEs. Some results of improving turb.ine exhaust passages
SOURCEi ItZ. Energatikag no. 11, 1965t 30-35
TOPICTAGSi gas turbine# exbiitist gas dynamics
ABSTRACTs The effects of chaNog the exhaust diffuser parainoters on stage efficiency
of medium- and small-sized gas turbineskere experimentally investigated. The diffusex
geometry was varied as shown in.Pi 1 with ot at 89.11p and 140 and expansion ratios.
of 1.51 (original_design) to 244 f;/-1/1 - 69 Lle 1 3-5--4p D - inlet diameterg L
diffuser length). ~Ihe experiments were perfomed using the integral method as
previously described by A. Ye. Zaryankin (0 metodike integraltnykh ispytaniy diffuzorov.
i vvkhlopnykh patrubkov. Teploenergetikap*lfo. 3v 1962). Curves of the lose coeffi-
oient ad a function of expansion ratiol expansion anglev and inlet Mach number (0.2--
0.6) are presented for diffuswr with and without collection apirale It was found that
diffuser losses could be reduced by 36% and that Z 30% of the kinetic energy could be
recovered by increasing the er sion ratio from Is5l to 2-3--2.8 and the expansion
Pan
r&rd UDOi 621-438

t. NKs. AP6019729 --SOURCE CODE:- UR/0096/66/000/007/0029/0032-
AUTHOR: Zaryankin,, A. Ye. (Candidate of technical scion-es);, aqtsTep
-6Cf6'6h'nical scienoes); Sbakb, R. K, D,-(Fng,neer
In
ORG;, Moscow Power Institute (Moskovskiy energeticbeski-y institut)
TITLE: Effect of geometric parameters on the operation of annular
axial-radial diffusers
SOURCE: Teploenergetika, no. 7. 1966p 29-32
TOPIC.TAGS: diffuser design, gas turbine 1, IDIFICUSPif-
ABSTRACT: All experiments were carried out with air at donstant values
ofitbe.M and Re'numbers equal, respectively,, to 0.3 and 5 X 105. Five
series of diffusers were investigated. The dimensionless geometric
par~ameters of the diffusers,tbe optimum degree of expansion, and the
minimum.values of the losses are given in a table. In the first series
of qxperiments, a study was made of the form of tbe~flow-throogb section,
wbiab is characterized by the ratio of the radii; r2/ri. (See Fig. 1)
The results of this series of experiments are shown In a figure which
illustrates.tbe dependence of the total losses on the dimensionless
radius, Purtbor-figures, based on experimental-data, illustrate the
Card 1/2
VH Tl_.~

A 4f AP-6019729

A

7-1
Fig, 1, Diagram of a4al-radial diffuser
dependence of the losses on the axial lengtho the change in the losses
as 9, function of the "radial. character" of the diffuser,, the dependence
of the losses on the degree of expansion, and the effect of the form of
the contours on the losses. Orig, art. has:. 6 figures and I table. [06]
-. SUB CODE: 2l/.:3UBM DATE: none/ ORIG REF: ~ 002
pb
Card 2/2

ACCESSION NR: AR~015127 3/0124163/000/012/BO40/BO41
SOURCE: RZh, Mekhanika, Abs. 12B 1
AUTHOR: ZaryanUnp Aslos; Zatsopin# M#F.
TITLE: Results of studios of conlo and ring diffusers
CITED SOURCE: Tr" Mosk. energ. in-ta.
'syrup 4~' 1963,, lo3-li6
TOFIC TAGS; diffuser, coni,.% diftasort,ring diffuser
TRANSLATION: The authors oxamino-the effects of various parameters on the losses
~,in conic and ring diffusers. Louses in a conical difl'usor aro described by the
functional dopendonce K,= f(Ck n, M, where 4\ is the aporturo angles
n = Fk/FH is the degree of diffusor expansion (Fk and F11 Ara tho aroas at the
LnIot-anEl outlets rospectivoly), X and R are Maoa and Ri~rnolds numbors, The
prosonce of broakoff compUcates tholstudy ot flow. For non-broakoff difilts-d~;'.14
tho losses comput6d on tho bas'is of bound=7 layor thoory aro dotorminod by
par=otors. n,,6,. 9 Rp and Me
Ccr&

A
SSIOI
CCL I NM AW1512?
1. The effect of the dog:~ei of expansion n,, EVeriments show that the in_
crease in n with a constant ang.
*Lo 6% and a constwit voloolty at the inlot leads toi
a considerable increase in lossos. This is associated with the increase in the
integral boundary,layor thicknesses. The evaluation for 4% = 100 sh(rus that the
losses increase most intensively with -small values of no vhoroupon their growth
diminishes. The results cannot be extrapolated for large no when breakoff occurs.
The study showed that n > 2.5 is; inadvisable.
The offect of d\ . The increasing of6\ loads to a reduction of tho,lossos
until the broakoff.of the flow;lnthe presence of breakoff the losses increase,
ith n have shoim that ~breakoff occurs with (.~,7> 110. Eo o-
Experiments u
nomically, it is advisable to make use of diffusers with limiting expansion angles.,
3, The effect of the number R. With,non-breakoff flow, the effect of the'
number R is not significant. In the presence of broakoffq the Reynolds number
affeets not only the integral thIcknossos -but also the position of the broakoff A
point*
4. The effect of the numbor X. Increasingthe number X leads to increases
in the displacement thicknesses Ln the initial portion of the diffuser and their
reduction toward the outlet. With angles (8,300 and 16.200),..tho lossoz for
X