"SCIENTIFIC ABSTRACT LYAKHOV, S.M - LYAKHOVETSKIY, G.YA."

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001031020003-1
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Sequence Number: 3
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

LYAKHOV, S. M.
Hydra in Volga benthos and plankton. Zool.zhur. 39 no.4:618-620 AP
16o. (MIR& 13: 1.1)
1. Chair of General Biology, Kuybyshev Medical Institute.
(Volga River--Hydromedusae)

LYAKHOV9 S.M.
Benthos of the Volga River near Kuybyshev and Its dynamics. Trudly
Inst. biol. vodokhran no.3:106-128 161. (MIRA 14;3)
(Volga #i_U;Z-_1OOnthoa)

LYAKHOV S.M.
Materials on benthic popUation of the Volga River in the section
between Ffbinsk and Astrakhan at the beginning of hydraulic re-
construction of the river. Trudy Inst.biol.vodokhran. no.4:187-
203 161. (~fflk 14:10)
(Volga River-Benthos)

LYAKHGV, 8.14,
Formati-on-of benthos in Stalingrad Reservoir during its first year
of existence. Trudy Inst.biol.vodokhran. no-4:204-2-18 161.
(MMA 14:10)
(Stalingrad Reservoir-Benthos)

LY A E HO V) S4mN
Flow of the benthos in the Volga River near Kuyhyshev before
regulation of its streamflow. Trudy Gidratiol. ob-va
,61. (MiaA 15:1)
1. Kafedra ol:shc~ey bioloFii huybys~evskogo neditsinskogo instituta,
Kuybyshev.
(Volga River--Bentl,,os)

LYAKHOV, S.M., kand.biolog.nauk (Komsomollsk,, Kuybyahevskaya obl.)
Protecting hydraulic structures against Dreissena. fouling.
Priroda 51 no.7:106-108 Jl 162. OURA 15:9)
(Dreissenidae)

LYAKHOV, S.M.; MIKHEYEV 7 V.P.
Quantitative evaluation of the fouling fauna in 11-jilga
by using diving devices. Trudy Inst. biol. vnutr. vod no.62303-
308 163. (MIRA 18:1)

LYAKHOV, S.M.; MIKUYLev, V.P.
Distribution and quantity of Dreissena in KuybyBhev Reservoir in
the seventh year of its existence. Trudy Inst. biol. vnutr. voc
no.7:3-18 164. (MIRA 18:2)
1. Kuybvshevskaya stantsiya Instituta biologii vnutrennikh vod
AN SSSR.

BIRYUKOV, I.N.; KIRI)fCIIVNKOf 1,,,ya.;,~ LYAKJJOV, 3.14.; SERGEYEVA, G.I.
Living conditions of the mollusk Dreissena polymorpha Pallas in
the BabinBkiy Bay of the Oka River. Trudy Inst. biol. vnutr. vod
no.708-46 164. (MIRA 18-2)
1. Kuybyahevskaya stantsiya Instituta biologii vnutrennikh vod
AN SSSR i GorIkovskoye otdeleniye instituts. "Giprotorfrazvedka".

- - -
LYAKHOV S.-M.
Work of the Institute of the Biology of inland 'Waters of the
Academy of Sciences of the U.S.S.R. on the protection of hy-
draulic structures from Dreissens, overgrowth. Trudy Inst. biol.
4nutr. vod. no.7:66-70 164.
(M.IRA 18:2)

LYAKHOV, V.I., inzhener.
Working frozen ground with a vedge shaped rammer. Mekh. stroi. 12
no,'2:24 F 155 (XIBA 8: 4)
(Froze; ground)

T-yi OT, V,L , inahenar*
working frosen ground with wedge-shaped drop weight. Mckh.stroi.
12 no,10:22-23 0 155. (KM 9:1)
(7rosen ground)

LYAKWV, V.K., inzbener.
Structure of insoluble particles in used motor oil. Vest. mash.
36 no-8:35-36 '56. (MLRA 9*.10)
(Lubrication and lubricants)

S/147/61/000/0o4/oI31021
E025/E120
AUTHORS: Kudryashev, L.I., and Lyakhov, V.K.
TITLE: Calculation of the effect of longitudinal
non-isothermalness on the heat transfer coefficient
in the conditions of the internal problem
PERIODICAL: Izvestiya vysshikh uchebnykh zavedeniy,
Aviatsionnaya tekhnika, no.4, 1961, lo4-Ilo
TEXT: If for hydraulic smooth tubes a known pattern of
turbulent flow is assumed, then the problem of determining the
heat transfer coefficient can be reduced to a system of
differential equations for the boundary layer. The equations are
reduced to a simpler form, because the boundary layer is very
thin; by assuming mean values for a number of parameters, and
that the velocity and temperature satisfy power laws in the tube.
An approximation is obtained for the local value of the Nusselt
criterion and the mean value of the Nusselt number is calculated
for the tube. A general form is given for the mean Nusselt
number showing that if the physical parameters are determined
for the mean temperatures of the flow and the heat transfer
Card l/ 3

Calculation of the*effect of ... S/147/61/000/004/013/021
E025/El2O
coefficient is also referred to the mean temperature then it
correction must be introduced to take account of longitudinal
non-isothermalness. These results were tested experimentally.
The experiments were carried out for various amounts of
longitudinal non-isothermalness from 2 to 30 OC. Diesel oil 11as
used as the working liquid. The experimental results for heating
and cooling are compared with a well known experimental formula
and are in substantial agreement with it. However, there is a
scatter of experimental points which is too great to be accounted
for by experimental errors. moreover, this scatter is a function
of the temperature and parameters of the tube. On the other hand,
by using separate equations for heat transfer on heating and
cooling the scatter of points does not exceed 8% and this agrees
with the formula derived from theoretical considerations. It is
shown that the spread of the points is substantially decreased
by taking account of non-isothermainess and a simple method of
estimating the effect of longitudinal non-isothermalness is
proposed for practical calculations;
There are 4 figures.
Card 2/3

Calculation of the effect of ... 5/147/61/000/004/013/021
E025/E120
ASSOCIATION: Kafedra aerogidrodinamiki, Kuybyshevskiy
aviatsionnyy institut
(Department of Aerohydrodynamics, Kuybyshev
Aviation Institute)
SUBMITTED: August 6, 196o
Card 3/3

s/196/62/000/010/022/035
E073/E155
AUTHORS: Kudryashev, L.I., and LyA ~hov, V.K.
TITLE: Influence of transverse and longitudinal non-
isothermal conditions on the heat-transfer coefficient
during turbulent flow of liquids in tubes of
circular cross-section
PERIODICAL: Referativnyy zhurnal, Elektroielchiiika i energetika,
no.10, 1962, 3, abstract 10 G17. (Tr. Kuybyshevsk.
aviats. in-t, noA2, 1961, 145-154)
TEXT: Analysis of hydrodynamic and heat-transfer differential
equations and thermal equilibrium equations shows 'that existing
experimental data on heat transfer have to be cdnsidered as a
particular case of small longitudinal temperature drops. Experi-
mental data on.heat transfer within a wide range of longitudinal
non-isothermal conditions should include criteria which take into
consideration the relations between the,longitudinal and transverse
temperature gradients. Theoretical conclusions are in fair agree-
ment with experiment on heating liquids with various values of this
temperature criterion. 7 references.
Card.1/1 [Abstractor's note: Complete translation.]

SA2X621000100010191030
1054 1254
AUTHCHS: Kudryashev, L.I. an
TITLE- The influence of transversal and longitudinal temperature drop on
the hent tranafer coefficient in turbulent fluid flow in pipes with
circular cross-3ection
Pi,RIODICALI Refora-tivnyy zhurnal, Makhanika, Svodylyy tom. no. BB, 1962? 93f
abstract 8BA31 (Tr. ruybvnhevrk, aviats. in-t, w. 12, 1961,. 145-154)
TMt It is pointed out in the work thnt the influence of the longitudind 1~~
non-isothermity I-Abstrnater's rates tenrorature drop] on the heat transfer co-
efficient was hitherto completely dimregarded and that this influence is
essential in thin work. The aut6rs mean by "the amount of non-isothermity" (the
definition is not given) the temperature differonce of the fluid at the inlet t'
and outlet V from the pipe. After a short review of differential eqtutl6ns for
energy, continuity and motion$ and indication of the strong influence of temper-
ature on the viscosity (in natural-oil produots)q the eq'uation for heat balance
is given 1,11 'if tic P (t'- t
Card 1/3

6/124/62/000/008/"019/030
The influence of,... Ib54/I254
and rewritten in non-dimensional form
N Pe
where4.,t means the difference between -Lhe arithmetic. average temper-ature of the
fluid and -the wall temperature t (the later is assumed as crnstant); Ii is the
ITw:,4elt viumber; Pe is Peckl's ntagber; 6 is "temperature criterion"
t I tit
t, tv, ,
The mean heat transfer coefficientft and the Nusselt number are determined
according to the "temperature erop" f-, t. The limiting cases where 0--f0 (short
pipe) and 9 (long pipe) are consideredl and the authors cans to the natural
60nelunion (with tw 0 con-fl that 1: depends on 0 (with Jncreaoing 0, N decreanes;
and when 0-51 then N ---,0. The.results of experiments carried out on pipes of
various heat fluxes (with constant length) are presented as
4 f(R)
Card

Th eInfluence of..,
5/1 2Y416 P'/C)00/008/019/030
1054
1254
Where P is the p,.-,,,,Itl , 'I"
data obtained b lit4mber. Crnclusion
y 13.S. Petukhov 8 Oh" agreement with oxPorjmenjal
tho dOPondence of N on 9. T 1,0 (with an accuracy of IC~) and a confirmation of
fa.
1~bstracterls notes'COmPlGte tranalation
Card 3/3

S/15 63~000/003/005/005
B1 17YB18
AUT H O..i S Xudryashev,.L,.I.,,~Zakh,~v
TITLE. Experimental tudy of the heat.exchange when heating a
turbulent liquid flow in round tube
PERIODICAL: Izvestiya vyIsshikh ucbebnykb zavedeniy. Neft' 1 gaz, no. 3,
1963, 79-83
TE.XT.- The general character-ofthe theoretical functions Nu f(Pr)
was experimentally,confirmed for the heating of liquids. Based on the
equation n M
Nu CRe Fr
which according to previous-statementa S. Petukhov, V. V. Kirillov,
"Teploenergetikall no. 4, 19-58; A. I. Kudryashev, 3b. nauchnykh trudov,
no'. 7, "Toplotekhni),.all.-Kuybyshevskiy industrialInyyinstit-ut, 1957)
is sufficient for generalizing the experi'mental data, C and m were
experimentally determined in the present work for the range Pr = 3- 300
with comparatively 'small changes of Ile 104: _ 105. Diesel winter -oil,
diesel summer oil, and transformer oil weroused for the experiments
vihich~ ere made according to a method described by V. L. Lellchuk and
Card 173

0
S/152 3/000/003/005/005
B~,.perimental study of the heat 3117 B1806
idyakin (,iVoprosy t epI oobrona" IIzd-vo AN SSSR, 1959, P- 173-192).
V. Dyt
Experimental.data found in publications for n-butyl*alcohol and wator
we4-e used for a more comprehensive generalization. The experimental data
were evaluated,by the method of,succe.3sive approximation. The following
ranges were-found for which Eq.-(1) can be used:
Pr' 3 -,10, - C 0 023, m'- 0.4;
Pr.- 10 -,30, C - 0.0264, M = 0.352;
Pr 30.0 - 100, C 0.0316, 0.3;
Pr= 1,00 30C, C 0.0367, m 0.264.
The offect of the variability of physical parameters on the heat exchange
k . .....
the experiments. in the
-be-objectively est
OL Y
f w
range Pr 100 280, k was found to be 0.16. This figure was higher
than that.found by other authors, which suggests a relation k =.f(Pr).
Further eXDeriments are,necessary tontudy this dependence. There are
.2 figures and 3 tables.
Card 2/3

7-17 7-
June,
EAT TIR_kNISFER .COEFYIC"IE'NT ON LON1531TUDI'NAL !QND
TR.~NISVERSE NLONTISOTHERTIVIICITY IINT TURBULEINT FLUID FLOW (USSR)
T
shev, 'L I and V K. Lyakhov zhenerrx-fizichaski-ty zhurnal, no.
Kudra In
..Apr 1963, 56-6o. S/1701631000100-1/007/017
An analysis based on a'two-boundary layer mode' was made to derive generalized
relations'hips ior turbu ent heat transfer, with allowaznce 'oi- transverse and knryi-
Audinal in physical properties. By introducing functions for mean ihar-
mal conductivity, viscosity, and speciYic he-at into the equations for the laminar
sublayer, the following e,-_-pression, which allov-,rs for the effect of transverse non-
isothermicity on heat transfer, was derived:
CL 0_52 52
0.8 0_0 f P
Nuf 0. 023 Re-P Prf
f)0.
[I refers to-bulk flow, ~L viscosity, X frierma-I con6tuctivity, and Y density).
previous experimental
Data calculated by -the fo-rmula were good agreement with
Card 1/2

AM lar. 937- 5 Juae
D 2 2 Z23, 10 S *V- ii-:Ml! C I A
results obtained with viscous liquids at Pr >> I and air at Pr 0- 7. The following
forrnula was derived to express the effect of longit ",dinal isothermicity:
tI -t
cRenp 'p
r
t
W
:( d
~~.,,here t
-S the diffel-ence bet,,ieen inlet and outlet temneratures and tw the
mean via!! te,mperature. Experimental data were correlated by this formula to
.rithin
-:- as compared with � 15-20% obtainable by the empirical form-Aa.
T h, estud was made at the Kuybyshev Aviation Institute. [PV
y
Card :2/2

KUDRYASBEV., L.I.; IZAJPCV, V.K.
.... ....... -1-1.11 -
Experimental study of heat exchange in heating turbulently
flowing fluids in a circular tube, Izv, vysh, uchebo zavo;
neft' i gaz 6 no-3:79-83 163. (MIRA 16:7)
1. Yuybyshevskiy aviatsionnyy institut i Ku7byshevskiy
po-Utekhnicheskiy institut.
(Turbulence) (Heat-Transmission)

T, 1 9 ANT(m) _FPFCn)_9&n(M) 1177-4
AC
003080 SOURCE CODi: Ui/jl8l/63/00')/015/0151/0156-
AUTHOR: Lyakhov, V.K.
ORG: None
TITLE: Dependence of the heat transfe and hydraulic resistance co-
efficientson the,degree of longitudinal and transverse nonisothermicity
in the.turbulent mot~&_of a fluid under the conditions of the internal
problem'-
SOURCE. Kuybyshev. Aviatsionnyy institut. Trudy, no. 15, pt. 2, 1963.
Doklad~Fkus,tovoy,nauchno-tekbnicheskoy konferentsil po voprosam
Mekhaniki zhidkosti J. gaza (Reports of the Joint scientific-technical
conference on problems of the mechanics of liquid and gas), 151-156
TOPIC TAGS; turbulent heat transfer, hydraulic resistance, thermodyna-
mics, boundary layer theory, heat transfer --coeff icientg turbulent flow,
laminar boundary~ layerg internal flow
ABSTRACT: The article is of a theoretical nature, without experimental
data. The mathematical problem is formulated'b~ the following system
of differential equations:
I Card 1/3

T, IJ15PP-66
ACC NRI
AT6003080
dp a aws~
M wy
at a (b) (2)
OPYWOF Wi Wif
IL - P 0)" 0). C'P- CP (f); 0). (C)
In order that the system may satisfy the following condition:
Vdi
where 9is the value.of the physical parameter; t Is the wall tempera-
ture Iand tv is the temperature at the bound'ary ol the laminar sublayer,
the following assumptions'must be made: 1) the variable character of
the physical parameters.is independent for each parameter, that is, it
must be possible to apply the principle of superposition to the Indi-
vidual parameters; and,.2) the variability of the viscosity is such
that the differencebetween the thicknesses of the thermal and hydro-
dynamic layers disappears. Results of the calculations are presented
in tabular form. A figure shows a comparison of curves calculated by
Lgqrd 2/3

-66
ACC NRi AT600308 -
0
the method proposed in the article,with a curve calculated by the
Hoffman formula. It is found that the curves coincide only in the
__12 and 4
--regions Pr = 5- 3-6 ?or 5