SCIENTIFIC ABSTRACT LEGENKOV, A.P. - LEGEZO, L.S.
Document Type:
Collection:
Document Number (FOIA) /ESDN (CREST):
CIA-RDP86-00513R000929120012-5
Release Decision:
RIF
Original Classification:
S
Document Page Count:
100
Document Creation Date:
January 3, 2017
Document Release Date:
July 31, 2000
Sequence Number:
12
Case Number:
Publication Date:
December 31, 1967
Content Type:
SCIENTIFIC ABSTRACT
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Attachment | Size |
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CIA-RDP86-00513R000929120012-5.pdf | 4.67 MB |
Body:
ISGENIKOV A P.
t-
Motion of a long wave in an infinitely long flat channel of
variable depth. Probl. Arkt. no.2:73-83 157. (MIRA 11:12)
(Hydrodynamics)
/j x~o v
PHASE I BOOK M(PLOITATION SOV/4085
Leningrad. Arkticbeskiy i Antarkticheskiy nauchno-issledovateliskiy institut
Problemy Arktiki; sbornik statey, vyP- 5 (Problems of the Arctic; Collection
of Articles., No- 5) Leningrad, Izd-vo "Morskoy transport," 1958. 139 P-
500 copies printed. XERM COPY
Additional Sponsoring Agency: USSR. Ministerstvo morskogo flota. Glevnoye
upravleniye severnogo morskogo puti.
Resp. Ed.: V.V. Frolov; Editorial Board: L.L. Balakshin, M.I. Belov, Ya. Ya.
Gakkell, A.A. GirsY P. A. Gordiy6nko, L.G. Kaplinskaya., A.F.IAktibnov, A.P.
Nikollskiy, A.Ya. Sukhorukov, and A.F. Treshnikov (Deputy Resp. Ed.);
Tech. Ed.: L.P.' Drozhzhina.
PURPOSE: The publication is intended for geographers, oceanographers, and readers
interested in the study of the Arctic and Antarctic regions.
COVERAGE: This collection of 19 articles published by the Arctic and Antarctic
Institute deals with phenomena on the Arctic ice sheet, the effect of western
C ard 1/5
I
Problems of the PLrctic, lollection of Articles, No. 5 SOV/4085
atmospheric circulation on air conditions in the Arctic . methods of photometric
processing of aerial photographs in determining the depth of reservoirs, mag-
netic observations and processes occurring on islands in Scrviiet Arctic waters.
Brief information on the results of Soviet Arctic and Antarctic expeditions*is
included. References follow the articles.
TABLE OF CONTENTS:
Legentkov,, A.P. The Theory of Mal Dispersion, Concentration, and Compression
the Open S~& 5
Denisov, A.S. Causes of the Change of Water Temperature in the North Cape
Current 1.9
Timofeyev, V.T. The "Age" of Atlantic Waters in the Arctic Basin 27
YakovlevY G.N. Heat Balance of the Ice Cover of the Central Arctic 33
Vangengeym, G.Ya. Shift dr the Centers of Atmospheric Activity and of
the Middle-Latitude Plow in Relation to Transformation of Western Circulation 47
Card 2/5
Problems of the Arctic; Collection of Articles., No-5 SOV/4085
Malykh, B.P. Connection Between Changes of Pressure Near the Ground and in the
Free Atmosphere 57
Petrova., A*N. Thunderstorms in the Arctic
67
Milyayev, N.A. Gecmagnetic Disturbance in the Region of Operations of
the Drifting Ice Stations "North-Pole-3" and "NorthrPole-411 73
Gorazdavskiy, T.Ya. Theoretical Premises for a Method of Forecasting the
Disintegration of Ice Fields and Frozen Ground 81
Shvaybhteyv, Z.I. Preparation of Modeling Ice by Pulverization of Super-
cooled Water 93
Yanutsh, D.A. Phatmetric Methods of Processing Aerial Photographs to
Determine the Depth of Reservoirs 99
NOTES
Nesterova., M.P. The Soviet Union Resi=es the Production of the Normal
Sea Water
Card 3/5
Problems of the Arctic; Collection of Articles, No- 5 SOV/4085
Volkov,, P.D. A Case of Drift Determination in Oceanographic Research
Performed With the Aid of Radar 113
Dolgin., I.M. Production of Hydrogen for Aerological PurpbsesWith the
Use of Aluminum l16
Sen1ko., P.K. Navigation and Magnetic Observations Made During an Antarctic
Sledge-Tractor Journey 328
Sychev, K.A. Floating Ice Island of the 'North-Pole-611 Station 121
Koblents., Ya.P. Disintegration of Semenovskiy Island in Recent Years 125
FRCM FIEID OBSERVATIONS
Mustafin, N.V. The Ice Field of the '~N6fth-PoU -7, I'Drifting ice station 127
Sisko., R.K. June Thunderstorms on the Novasibirskiye Islands 127
Ivanov, V.B. A Fissure on the Smmlt of a Glacier Dome 131
Card 4/5
Problems of the Arctic; Collection of Articles SOV/4085
Zakharov., V.F. Walrus Rookery on the Vilkitskiy Island 132
INFORMATION
Maksimov, V.I. Second Antarctic Expedition of the Academy cfSciences
USSR 133
Baskakov.,'G.A. Jq and N.F. Kudryavtsev. Expedition for the Purpose of
Investigating Currents in the Kara Sea During the 1957 Navigation Period 137
Denisov, AsS. Oceanographic Expedition on the Ship "Toros" 139
AVAILABLE: Library of dongress
JA/rn/gmp
Card 5/5 9-7-6o
AUTHOR: __Legen!~~ SOV/49-58-E-5/17
TITLE: Plane Free Oscillations of an Ideal Homogeneous Liquid in an
CA -
Infinite Canal of Variable Cross-section (Ploskiye svobo-
dnyye kolebaniya ideallnoy odnorodnoy zhidkosti v beskon-
echnom kanale peremennogo secheniya)
PERIODICAL: Izvestiya Akademii !,lauk SSSR, Seriya Geofizicheskaya,
19587 Nr 8, pp 989 - 994 (USSR)
ABSTRACT: This problem has been studied by Green (Ref 1), Lamb
(Ref 2), Taylor (Ref 3) and Thorade (Ref 4). Green
assumed that the cross-section changed
only by a small fraction in a wavelength. In Lamb's and
Taylor's formulations, the change of cross-section could
take place over any distance but the section itself tended
to zero. Thorade considered a similar problem but with an
infinite canal. However, he neElected reflections of the
oscillations which considerably reduces the value of his
work.
The author considers the oscillations of a liouid in an
infinite canal not subject to the limitations of Green and
Thorade. The basic eauations are taken to be:
Cardl/7
SOV/40-58-8-5/12
Plane Irree Oscillations of an Ideal Homogeneous Liquid in an infinite
Canal of Variable Cross-section
au
- ~ - 9
at ax
(SU) = -
b rax at
where u is the velocity of horizontal motion of the
liquid; t is the time; g is the acceleration due to
gravity; ii is the deviation from the undisturbed surface;
b is the width of the canal at the surface and S is
the cross-sectional area of the canal. Assuming a sine
wave oscillation gives Eq.(2)..
The oscillations are supposed to be propagated in t-le direc-
tion in which thecross-section diminishes. Then tl'-e
progressive waves can be written in the form:
Card2/7 T1 + = T10 sin a (t - x/c 0)
SOV/49-58-8-5~17
Plane i'ree Oscillations of an Iaeal Homogeneous Liquid in an
Infinite Oanal of Variable Cross-section
where c is the velocity of propagation of the
0 Pog
wave and p 0 is the depth. Between two different sections,
a wave with variable amplitude and velocity is propagated;
as in Eq.(3) (where "~ and -U are the amplitude and
maximum, horizontal velocity of the liquid at the given
point, 0 and y are non-linear functions denotini~ the
change in phase between the given point and the ori5in.
Ea-S. (3) are written as sums of sines and cosines (4 .
Eq.('/) is obtained from the continuity condition. Three
main problems are now considered.
a) The width changes along a straight line while the depth
remains constant. Let b = b 0 - 2xtanp and the depth
p be constant ~Figure 1). Eliminating x in (2) and
substituting k = -Irb /,fp--q Ttan (p Cives:
110(k) + C2YO( k)
Card3/? Substituting values for 0 1 and U 2 obtained from
SOV/49-58-8-5/17
Plane ffree Oscillations of an Ideal Homog-eneous Liquid in an
Infinite Canal of Variable Cros---section
Eqs.(?) and (8 Cives two equations for n and u in
terms of J 0~k~ O-Emd YOW Next, their dependence on
a/X and b/bo is considered ~vihere a is the variable
length of the canal). Suppose k