SCIENTIFIC ABSTRACT SHVETS, I.T. - SHVETS, I.YE.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001550410009-6
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: March 14, 2001
• Sequence Number: 9
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

Jftt~_at' Trarnsfeo a-rid !hydrodynamics
SOV/3898
7,he a,it'-'ors present a simplified method for approximating the
temperature fields and stresses in a drum-type turbine rotor.
qTne method does not take axial variation of temperature into
account but considers each section of the rotor as part :,f an
_fnufinitely long hollow cylinder with boundary conditions cor-
vesponsing to those for the particular section under considera-
tion. Results calculated by the approximate method are compared
those dete-mined by more accurate calculations. An analysis
,-,f the discrepancies leads to the conclusion that the simplified
e -
m
*~,cd is sufficiently accurate for most engineering purposes.
following personalities are mentioned: V.I. Fedorov, V.M.
A,granovich, and N.N. Shellmenko, all of the Heat-Engine Labora-
.~o:~,y, Institut teploenergetiki AN U_krSSR (Institute of Heat-
Po-we-_r Engineering, Academy of Sciences UkrSSR).
D~~rfman, A.Sh. Simple Calculation Method for a laval Nozzle 26
'2he author presents the results of an experimental study of
thie process of heat transfer during the condensation of steam.
A dettalled description of the experimental apparatus and the
methods employed is given, as well as a qualitative descrip-
tir.n 7~f the physical phenomena involved in theirocess of con-
on th~ basis of the results obtained.
2

hea-4 Transfer and Hydrodynamics
Saykovskiy, M.I., and A.Sh. Dorfman.
Efficiency of Intake Nozzles
SOV/3898
Criteria for Estimating the
159
YeTemenko, A.S., and A.P. Pedosenko. Losses in Turbine Guide
Vanes of the Cascade Type 167
Yeremenko, A.S., and A.P. Fedosenko. Investigation of tile Losses
In Tluxbine Blade Cascades 174
T'he above two papers deal with an Investigation of the losses
In turbine guide vanes of the cascade type. The efficiency of
the cascade is determined as a function of the inflow angle,
blade-Jncidence angle, blade pitch, and other-parameters.
Sh-,rets, I.T., V.M. Sidun, and L.I. Romanyuk (Deceased). Experimental
__~j_-nV_e3_tiga:t_1on of the Heat Conductivity of Soils Used in Gre-enhouses
and Ho"51beds :L86
"CIAILABLE.- Library of Congress
AC/p,~i/nih
Card 7/'4-( 7-28-60

SHVETS, I.T., akademik; KEIRISTICH, V.A., kand.tekhn.nauk; STRADOKSKIY.
J6~4ff2h.
eoooo'~Studying the gas-turbine combustion chamber using natural gas '
by means of a working-process model. Energomeshinostroanis 4
no.11:26-30 N 158. (KIRA 11:11)
1. AN U= (for Shvets).
(Combustion research) (Gas turbines)
Ar

SKCIBILB.4111, Aleksandr Nazarovich [Shcherban', O.N.], akad-3mik; SHMS.
]~~T., akademik, --Invnyy red.; KOVALKVSKIT, V.V., red.
LProspucts of the development of atomic power] Perspektyvy
rozvytk-u atormoi energetyky. KYiv, 1959. 49 p. (Toverystvo
d1in noshyrannia politychnykh i naukovykh znan' URSR. Ser.5.
U0.9). (KIRA 12:9)
1. Akademiya ",A USSR (for Shcherban', Shvets).
(Atomic power)

PRASE I BOOK MLOITATION SOV/5376
Akademiya na;ik Ukrayins !coyi RSR. KyyjLv. Instytut teploenerhetyky.
Teploobmin ta h1drodynamika (Heat Exchange and 1~ydrodynamic3) Yyyiv,
Vydavnytstvo AN UkrSSR, 1959. 76 p, (Serieo: Its: Zbirnyk prats',
vyp. 16) 1,000 copies printed.
SponsQring Agency: Akademiya naUk UkrayinsIcCoyi RSR. Instytat
teploenerhetyky.
Editorial Board: Resp. Secretary: A. Sh. Dorfman, Candidate of
Technical Sciences., 0. S. Yeremenko, CandidaLe of Technical,
Sciences, 0. 0. Kremnlov, Candidate of Technical Sciences,
V. I. Kuznetsov, Candidate of Technical Sciences, P. 1. LavrovY.
Candidate of Technical Sciences, M. M. Nazarchuic, Candidate of
Technical Sciences, V. I. Tolul)jinslkyy, Corresponding Member,
Academy of Sciences UkrSSR, I. T. Shvets', Academician, Academy
of Sciences UkrSSR. Resp. Ed.: ff. M. Shchoholev, Candidate of
Technical Sciences; Ed.: I. V. Kisina; Tech. Ed.: V. I. Yurchy-
sbyn,
Card-4/4

-Heat Exchange (Cont.)
SOV/5376
PURPOSE : This collection of articles is intended for scientific
workers and engineers concerned with the construction of turbines.
COVERAGE: The bookletj published in Ukrainian, contains 10 articles
dealing with problems of improving gas turbines. Results of
investigations of processes in the combustion chamber and of
heat-exchange processes taking place in turbine components are
given. Aerodynamic problems of cascades of turbine blades and
of tubes are discussed and theoretical research in boundary-
layer problems is considered. Each article is follow by a brief
resume' in Rus-:,ian. No Dersonalities are mentioned. There are
no references.
TABLE OF CONTENTS:
Shvets',_I. T., and V. 0. Khrystych. Experimental Investigations
of Basic Characteristics of the Evaporation-Type Combustion Chambers
of Gas Turbines 3
VirozUb, 1. 0. Solation of Equations of the Laminar Boundary
Card-2/4

26M PHASE I BOOK EXPLOITATION SOV/2684
Shvets, Ivan Trofimovich, and Yevgeniy Pavlovich Dyban
Vozdushnoye okhlazhdeniye rotorov gazovykh turbin (Air Cooling of
Gas-turbine Rotors) Kiyev, Izd-vo Kiyevskogo universiteta, 1959.
349 P. 5,0001 copies printed.
Sponsoring Agency: Kiyevskiy gosudarstvennyy universitet.
Ed.: Ye. L. Orlik; Tech. Ed.: T. I. Khokhanovskaya.
PURPOSE: This book is intended for engineers and scientific
workers in the field of steam-and gas-turbine construction.
It may also be used by students of advanced courses related to
this field.
COVERAGE: The book contains results of experimental and theoretical
investigation of air cooling of gas turbines, and gives engine-
ering methods of calculating the most frequently used systems of
air cooling of gas-turbine rotors. Results of work on the de-
termination of boundary conditions of heat transfer in bladed
Card 1/5

Air Cooling of Gas- turbine Rotors SOV/2684
rotors and approximate solutions of the equation of heat
conductivity for blades and disks are discussed. This research
was conducted by the authors at the Heat Iower Institute of the
USSR Academy of Sciences, and at the Kiyev State University
imeni T. G. Shevchenko. The authors also used results of other
investigations reported in Soviet and foreign literature. Chap-
ter One was written by Candidate of Technical Sciences G. F.
Seiyavin; Chapter Twelve was written by Candidate of Physical
and Mathematic Sciences I. A. MotoviloveLs. The authors thank
Engineers Ye. A. Zyukov and K. A. Bogachuk-Kozachuk. There are
140 references: 84 Soviet, 35 English, 19 German and 2 French.
TABLE OF CONTENTS:
Preface
Introduction
SECTION I.
3
5
Ch. 1. Influence of the Initial Temperature of the Working Medium
Card 215 on the Efficiency of Turbine Units 11

Air Cooling of Gas-turbine Rotors SOV/2684
Ch. 2. Materials for Gas-turbine Construction 2~
Ch. 3. Data on Heat-transfer Theory 36
Ch. 4. Method of Heat-transfer Investigation in Elements of
Steam and Gas Turbines 48
Ch. 5. Methods of Cooling Gas-turbine Rotor Parts 76
SECTION II.
Ch. 6. Heat Transfer Between the Gas and the Blading Components
of Turbines 1 107
Ch. 7. Heat Transfer in Cooling Passages of Gas-turbine Rotors 131
Ch. 8. Heat transfer in Side Surfaces of Rotors of Turbo-
machinery --T47
Ch. 9. Heat transfer in the Area of Blade Roots -162
Card 3/5

Air Cooling of Gas-turblne Rotors SOV/2684
Ch. 10. Heat Transfer by Conduction. in Turbine Parts 181
SECTION III.
Ch. 11. Determination of Temperature Fields of Cooled Turbine
Disks Under Steady Thermal Conditions 2212
Ch. 12. Determination of Temperat~ire Fields of Cooled Turbine
Under Unsteady Thermal Conditions 233
Ch. 13. Determination of Temperature Fields in Moving and
Stationary Blades 246
SECTION IV.
Ch. 14. Basic Considerations in the Method of Thermal Calculation
of Air Cooling of Gas-turbine Rotors 2~)9
Examnles of Calculations for Cooling Disks of Gas-turbine
Engines 274
Carcl 4/5

Air Cooling of Gas-turbine Rotors SOV/2684
Ch. 15. Basic Features of the Aerodynamic Calculations for the
Air Cooling of Gas-turbine Rotors 286
Bibliography 308
Appendixes 315
AVAILABLE: Library of Congress IS/ec
Card 5/5 11-10-59

'Y N
PHASE i BOW E)a.4?1OZ-PAT1O- SOV/3407
Akademi,ya nauk SSSR. Eaergeticheskiy inetit-e. im. G.M. Krzhizhanovskogo
Pn)bleqv energetiki; sbornik posv-jashchayetsya akademiku G.M. Krzhizhanovskom
(Problems of Pover Engineer"; Collection of Articles Dedicated to Aca-
demician G.M. Krzhizhanovskiy) Maccrr., 1,959. 851 p. Errata slip inserted.
2,500 copies printed.
Eds. of Publishing House: B.D. Antrushin, P.V. Dubkov, P.I. Zubkovs and
S.M. Moyzhes; Tech. Ed.: T.A, Prusakava; Editorial Board: A.V. VIntery
Aca&"deian (Deceased), V.I. Poplaw (Reesp. Ed.) Corresponding Member.,
Academy., of Sciences'. LBSR~, V.I. Veyts., A.S. Predvoditele-v., N.A. Styrikovich.,
ff.F. Chukftsnov, N.B. Bogdanova, Candidate of Technical Sciences, B.T...Kozlov,
Candidate of Technical Sciezaes, M.M. lebede-7, Candidate of Technical Sciencesp
and I.N. Sundukov.
PURPOSR: This co.1lection, of articles is intended as a tribute to the imvry
of Academician G.M. Krzhizhanovskiy.
COVERAGE: The collection contains sixty articles by former students and
coworkers of the deceased Academician. The articles deal with problems
of a vide range of subjects in the field of pow.- engineering: problems
of the regional development of el-ztrIcal and thermal paver engineeringj,
Card 1/11

Problems of Pover Eng-ineer'Erz (Coat.) SOV/3407
power engineering techncplc;,q
y) and the p:r~rsfas of c(mbustion. No personalities
am mentioned. References ar.- given. afi;er most articles.
TUIE OF CONTM"S:
PART I. MUMAL POWER MINNERIM. FIRMIM OF HMMONAL
MNWPMM OF POWER XMINUFM
Veyts, V.I. G.M. K--Lhizhanovskiy - Founder of the Soviet Scientific
Pover Engineering School
Landsmn, S.U.Jand I.T. Shrets. Prospec-14s of Developwnt of Power
Rngineering in thW-M-=slniv~u- SM 16
of
Chokin -Sh.Ch, Pover Engineering and Science Power Ing
he Inebring in
Kazakhstan 22
Alizade, A.S.j B.A. Gyullmamdov, and V.I, SeVnWanskiy. Developent
of Wdropov!~r Engine4ring in Azerbsydzhan, SM 28
Card 2/11
.,V.- - - - 7 - lization in Assimiiasea, AugLVILD
Industrial Specift
Card 3/11

Problems of Power Engineering (Cont.) SOV/3407
Kudinov, A.G. Prospects of Utilizing the Lena River and its
Tributaries for Power Engineering Developments 74
Lugovoy, V.S. Basic Considerations of Electric Power Supply Systems
for Rural Regions of Kirgiz SSR 77
Gurevich, B.A. Utilizing the Capacity of Power Systems and Conditions
0
of Operation Under Pload 89
Kolosov, I.S. Problems of Method in Prospective Planning of Distri-
bution of an Emergency Reserve Among Electric Power Stations of the
System 100
Lebedev, M.M. Principles in Laying Out Electric Distribution Networks 108
Krachkovskiy, N.N. Some Problems in the Transmission of Electrical
Energy Over Extremely Long Distances 119
Karaulov, N.A. Some Scientific and Technical Problems in Improving
Energy Characteristict of Hydropower Station Equipment 130
Nikitin, B.I. Developing Guaranteed Graphs of Reservoir Utilization
for Several Hydropower Stations Operating in a Cascade Connected With
the Water Economy 139
Card 4/11

Problems of Power Engineering (Cont.) sov/34w
Monastyrskaya, A.R. Calculated Equations and Indices for a Comparative
Evaluation of the Power of Various Types of Extraction Noncondensing
Type Turbines 145
Leventalt, G.B. Basic Principles of Joint(Parallel) Operation of
District Heat-and-Power Stations in the Production of Thermal Energy 156
Mikhaylov, V.I. Some Special Features of Postwar Development in
Power Engineering in the U.S.A. 16T
Zakharin, A.G. Methods of Dentermining Technical-Economic Indices of
Rural Electrical Networks 174
Pirkhavka, P. Ya. The Present State and PzN?spects of Irature Use of
Electricity in Rural Regions of the USSR 186
Listov, P.N., I.K. Zhmakin and A.G. Adoyan. Electrification of Field
Crop Cultivation in the USSR 194
Zhmakin, I.K. Investigation of the Energy Balance of an Electric
Tractor Unit 206
Card 5/11

Problems of Power Engineering (Cont.) SOV/3407
PART Ij. EL&CTRIC' POWER ZNGn&W_1.WG
Markovich, I.M., S.A. Sovalov. Extremely Long-,Distance Transmissious of
600 kv 223
Libkind, M.S. Stati(! Condensers for Transverse Compensation of Loug-
Distance A-c Transmissions 242
GoraslitinIV.I. Effect of Forcing and Regulating Excitation on the
Dynamic Stability of Long-Distance Transmissions e 262
]Aatyukhin, V.M. On the Insufficiency of the Method of the Equivalent
Generator for the Investigation of Stability of Electric Transmission
With Small Disturbances 290
Kozlovskiy, G.F., G. V. Mikhnevich. The Limit of Static Stabil~ty of
a Multi-u-nit Station With Strong Regulation of Excitation 297
Neyman, L.R., S.R. Glinternik., G. Ye. Burtseva. Series Cbnnection of
Cal)acitors for Increasing Inverter Stability 308
Gorushkin, V.I., M.S. Libkind. Commission for the Long-DIstance Trans-
miss'ion of Electrical Energy at the Power Engineering Institilte ineni
G.M. Krzhizhanovskiy 318
Card 'D
6/11

Rrdblerr.g of Power Engineering (Cont. ) SOV/5407
PART III. HEAT POVER ENGINEERING
Notlov, B.K. Coefficients of Hydraulic Resistances to the Movement
of Gas-Liquia Mixtures in Vertical Tubes 527
Leontlyev, A.I. Calculation of Turbulent Friction in the Flow of a
Compressed Gas Around a Flat Plate 337
Yushchenkova,, N.I. Investigation of the Structure of an Axially-
symmetric Supersonic Stream in a Vacuum 343
Degtev, G.F. Conditions for Representing Heating Systems With Flaw
Burning of Fuel 355
Miropol':;kiy, Z L., M.A. Styrikovich, M. Ye. Shitsman. Heat Trans-
mission in Steam-generating Tubes at High Pressures 3T3
Xosterin, S.I., Yu.A. Koshmarov, Calculation of Resistance and of
Heat Exchange in a Stream of Uncompressed Liquid in the Presence
of a Positive Pressure Gradient 403
Card 7/ 11

Problems of Power Engineerin4-, (Cont.) SOV/3407
Barov, Yu. G., V.A. Si-drnov. Investigation ef Heat &-change in
Fellicular Condensation of Pare Vapors 411
Surinov, Yu.A. Basic Methods of the Present Theory of Heat Exchange
of Radiation 423
Anch,ianov, V.N., G.L. Polyak. Photographic Method of Measuring Talminous
F-Luxe-s 470
Styrikovich, M.A., I. Kh. Khaybullizj,.and L.K. Khokhlov. Effect of
the Rules of Solubility of Substances in Water Vapor on Boiler
Water 483
Fateyev, Ye.M. The Role of Science in the Development of Soviet Wind
Technology 496
Styrikovich, M.A., M.S. Shkrob. Results of the Activity of the
Commission for High Parameter Steam and Scientific Tasks in
Increasing the Reliability and Economy of Thermal Electric Pover
Stations in the Future 526
Card 8/11

Pr.:;rj1euis of Power F_rit-,ineerin,,~ (Cont. ) SOV/3407
PART IV. POWER ENGUTEERING TZGHNOIXY
Chukhan--v, Z.F. Basic Principles of Power Engineering 543
Ch-,:Y.hanov, Z.F. Problem of the Mechanism of Thermal Decomposition
,Df Fuels 564
Shapatina, Ye.A. Dynamics of the Process of Separating Volatile
Substances From Solid Fuels 575
Kalyuzhnyy, V.V. High-Speed "Bertinization" of Solid Fuels (Retarded
Combustion) 583
.Kashur-.'Lhev, A.P. Intensity of Heating Fuels and Control of the
Pr-~cess of Their Thermal Decomposition 595
Rhitrin, L.N. Theory of Combustion and Problems of Intensification
of the Processes of Burning 605
~'ard 9/11

Prc,tien..s of Power Ziagineering (Cont. ) SOV/5407
Sptysher, V.A., V.N. Iyevlev, V.I. Anreyev, B.B. Smirnov. Burning
of Turbulent Gas-Air Streams in Uniflov Fireproof Chambers 657
Snelestin, Yu.P., V.G. Vetrov. Two-Stage High-Speed &,rnaces 659
Lvk,i,v1 A.V. Mass-Heat Exchange in State and Chemical Transformations 673
Sm~'rnr,v;, M.S. Heating Damp Substances 681
U.bukhanov, Z.F., A.M. Nikolayev, A.P. Kashurichev. Utilization of Cut
Ps~-at. in Power Rngineering 687
PART V. COMBUSTION FffSICS
S:).1uyk17tin, R.I. Flows of Gas During Ignition Oceurring Beyond the
Sho~~,k Wave 735
R.tshkin, V.S. Structure of Heterogeneous Flows in a Shock Front 745
Fx~edvodit.elev, A.S. Motion of Combustion Zone as a Hydrodynamic
H-!rtercgeneity 793
D.,ttl,enko, B.B. Making Sutherland Formulae More Precise for Ydnetic
ri.3s r.,0--fficients 817

Problems of Power Engineering (Cont. ) SOV/3407
Pereleshina, A.P. Rqsical and Chemical Properties of Thermistors
Manufactured From Manganic Oxide 828
AVA.IIABLE: Library of Congress
~Plmg
Card 11/1-1 6-~7-60

STIVETS, I.T. [Shvets', uIrme-mik,
... And the electrificatinn of the whole country. Nauka i zhyttla
MMA
9 no.4:33-37 Ap '59.
1. AN USSR.
(Electrification)

SHVEIS, I.T.EShvets I.T.] ; KIM[5171CH, V.A.[E~hrystych, V.Q.]
ExoeriT..lental investigation of the fundamental characteristicE of
gas-turbine combustion chambers of the vaporization t7oe. Zbir.
prats' InBt.teDl. V1 URSR no.16:3-12 '59. (MM 13:11)
(Gas turbines)

SHVICTS, Ivan Troftmovich; LANDSM, Solomon Usherovich-, PISABENKO, K.,
red.; MATUSEVICH, S., tekhn.red.
[Electric power resources of the Ukrainian S.S.R.] Bnergeti-
cheskaia baza Ukrainskoi SSR. Kiev. Gos.izd-vo tekhn.lit-ry
USSR, 1960. 29 p. (MIRA 13:11)
('Ukraine--Electric power)

j,_Lj,."kBdenik, otv.red. ;
MINYAYLEHKO, Nikolay Af ones lyevich;-_;AVET.
PECILKOVSEAYA, O.M., red.izd-va; LIBERKAN, T.R., tekhn.red.
[Determination of the temperature field and thermal stresses
In turbine disks] Opredelenie temperaturnogo polls i teplovykh
nopriazhenii v turbinnvkh diskokh. Kiev, Izd-vo Aked.nauk
USSR, 1960. 68 p. (KIRA 14:3)
1. AN U&M (for Shvets).
.(Goo-turbine disks)

LORFKAN, Abram Shlemovich; HAZARCIIUK. Mikhail Mikhaylovich; PCLISKIY,
Naftul losifovich; SAYKOVSKIT, MikhBil Illich; SaVETS, I.T.,
akademik, red.; KISINA, I.V.,iad.Izd-va; RAKSINA. N.P.0
tekhn.red.
(Aerodynamics of diffusors and exhaust uozzles of turbomachines]
Aerodinamika diffuzorov i vykhlopnykh patrubkov turbomashin.
Pod red. I.T.Shvetsa. Kiev, Izd-vo Akad.nauk USSR, 1960. 187 p.
(MIRA 13:6)
1. AN USSR (for Shvets).
(Turbomachines)

SMTS,-1vanTroftmovich; FEDOROT, Valentin losifovich. Prinimal uchastiye
L(YZITSKIY, L.P., inzb-. CELIK, Ye.L., red.; KHOKEEMOVSKAYA, T.I.,
tekhn.red.
[Nonstationary beat exchange in turbine rotor*] Toprosy no-
statsionarnogo teploobmna v rotorakh turbin. Kiev, Izd-vo
Kievskogo univ.. 1960. 282 P. (KIM 14:1)
(Turbines) (Heat-Condustion)

�E~S, Ivan Trofimgvic4. prof.; KONDAK, Hikball Andrianovich, prcf.;
'--XIRAyGTSKIT,-NMolay Feliksovich, dotsent; OMMIT, Ivan Afanaslyevich,
dotsent; SHNITSOV,-Dmitriy Semenovich. dotsent; SERLUDIKO, Ivan
Kikhaylovich, dotsent; FNERMMO, S.L. dotsent, kand.tekJm.nauk.
roteenzent; SWYMOT, P.T., lnzh., red.; ONINICHENKO, H.P., inzh..
rod.; GOR11OSrATFOLISKATA. H.S., tekhn.red.
[Heat engineering] Obshchais toplatekhnika. Moskva, Gos.nauchno-
tekhn.izd-vo mashinostroit.lit-ry, 1960. 459 p.
WRA 14:3)
(Heat engineering)

',7 615
10, qOD .6
A J Tl I OIR S _3h~v of t'rie AS 'jkrSSR; Pyb~~n,___
r Lid c ni g k iv V C and
da u e s of T e chn i c a 1 3 c I e "I C e S
q
D,l,',ermj.qaLic)n of r,-Iie Co~i-_'.Lciencs of
H,id-aulic Re2:.-~Lazice,'~Tor Ai~erture~3 --',zi Revi:._Iving
DJ'Lscs
T~" L
-A --avedell,7: snerc.etilra,
r
'R'

A 3 AJ'T
:f S I 1 .2
o n, j I s e- o
iec x - me r ts
f e, )er-
0`11Z G n. S 1) e 11 E! c ra t u s F -ure 1" ~n tile
iristiuuue AS UkrSSR to
the '.,'171ence of r Uation
L L-1 on the hydrau-
Ile resi.;tanc-- of separate Dait_-7 of tulie cooling

s t e -1.n -as
r I-, e
A se res of f-m
lulae
e U, z o d e t 7_-rm I 11 e co! suMn-ozIon
f C 4
'ent, i_
e., ra-io c~*
ac-ual :-as rate
CD
r ou ~l "'ne ap
- 1 -
~:' e
,--rture c, c
wi. zn
ard f I o -1v G ex ..,ro~~sed b,,.,

Experimental Determinazion of cae Coeffficients of Hyd-raulic Resi-
stance for Apertures in Revolving Discs
G
11
The cy'! -, n,~ r-1 c al a,,)er-ures ~L;se"` in the first seraes
of excer-iments had sl--,ari) inlet and outlet edges,
m-m and the following d'
constant lengz`, of 2L~ i a -
~1,3; 6.5/; 8; 10; 11.5; 13,3; 14.3; 20
--id ~'5 v.,hich corresponds to a change in the
I a t i vc depth 1/d from b C-4 ro 0,~)6 and embra-c-es
t"Le w~ijle -otential ra.,ie-:e of aperture sizes for
su,ppiying cooiin--,- air in ;~-as turbines. The formu-
u
-Iee f or determinini--; tt-e of ;Lnlet -and
Card res-ist.a~nce are

67315
Ex-jerimentai Determination of tne Coe~ficients of Hydraulic Res-i-
Stance for A-.ertures In Revolving Discs
-+0.3~')K ") -1 T" L, 43K5+O.O-,,5K6
+0 - 037K'+G-- 17"'--0, C
0 0 0 0 (12)0
and
"12a)
C C~CC214-K +0~000016K
:P~ e~,-aramez;er c-'r.,aracterizes c1hange in the condl-
*--ons --ove.-n-m~-, the flovi of the current throuC~h
a,-jertu--e--- in t',-,e rdlisc durinE rotaticn-
u
aX 4 S 0
ard ~/L tl-e perip, d on zhe _q
5 is ,era-1 spee Ll

67815
SG7/1.3-60-1-12/21
ExDerimental Determination o'L the Coefficients of Hydraulic Resi-
stance for Apertares --I.n Revolving Discs
apertures, c - mean outlet speed in the aperture.
Ko = ~, - K (10)
The authors co.--clude that, -.,j',.eii the ratio of the
speed of rotation to the c,*..~tlet saeed in the
_~,,I,erture is large (u/c a1pp.), th; consumption
, e f P i c 1 ~, n-. - r -f-- p e,-T- t,,_~. r e c~ -,,j J t I ~ I., I i 1 1,
- L__ - ' f - k 1_11 S' .." lillet
c
diminisiaes by about -0 times. :.'ihen the ratio u./c
is above 4 the influzence of the shape of the inlet
edges mav be disrt~--arded_ Rouiidinir off the outlet
ed-es "--as no ~,ractlcai eLffect on conditions i~,overn-
g air flo,.-., t'n-rough the apert-ures 'n rotatin-
ini
discs. The consurn-,A'Pon coef-flcient -fol, square
apertures is that -for cylindrical channels
,,,~-,iven simila7__, n7draulic radii). The relative
rd dect-h .3.1 the aoerture, if the ratio is bezween
Val

67815
Experimental Determin,-..tion ol' the Coef.-"icients of Hydraulic Resi-
stance for Apertures in Revolving Discs
0. ~-)6<