SCIENTIFIC ABSTRACT LEVITSKIY, B.A. - LEVITSKIY, E.A.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000929630001-1
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: July 12, 2001
• Sequence Number: 1
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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GELLER, Boris Petrovich; KUZIRJ, Mikhail Yakovlevich; LOSHCMiKOV,
Vadim Yakovlevich; LITITSKIY bentsion Arone,
ALEKMEVI V.K.9 d ! V=,-,MM-NKO ? z W.? red.
(Financing and calculctions in construction; consultations
and explanations] Finansirovanie i ra.-Phety v stroitelistve;
konsul'tatsii i razlfiasnoniia. Kiev, Budivellryk, 1964. 199 p.
(MIRA 17: 10)
1. Ukraine. Gosudarstvennyy konitet po delam stroitel'stva.

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SOV/1 24-57-5-5551
Translation from: Referativnyy zhurnat. -Mekhanika. 1957, Nr 5, p 63 (USSR)
AUTHOR: Levitskiy. B. F.
TITLE: A Study of the Pressure Distribution in the Region of the First Half
Wave of a Surface Jump (Izucheniye raspredeleniya davleniya na
uchastke pervoy potuvotny poverkhnostnogo pryzhka)
PERIODICAL: DokI. L'vovsk. politekhn. in-ta, 1955, Vol 1, Nr Z, pp 48-50
ABSTRACT: An account is given of the results of experimental investigations made
of the pressure distribution throughout various typical cross sections
of the region of the first half wave of a hydraulic surface jump. The
author makes the following assertions in particular: 1) A pressure
deficiency will develop within the crest of the first half wave of a
transitory liquid sheet, or underneath the liquid sheet, only in cases
in which the surface jump is nearly submerged; Z) the pressure dis-
tribution underneath the liquid sheet, i.e., within the bottom eddy,
obeys a linear law. A similar pressure distribution, moreover, is
encountered both within the liquid sheet and within the eddy in the
plane of the bucket - -an exception to the latter being cases in which
Card I/Z bucket heights are small; 3) the pressure -distribution pattern

SOV/1 24- 57- 5-5551
A Study of the Pressure Distribution in the Region of the First Half Wave (cont.)
within the first half wave in the region of maximum curvature of the liquid sheet
is in approximate conformity with the hydrostatic law. As in another paper of the
author's (see RZhMekh Nr 5. 1"7, -abstract 5552), the reader is given no inkling
whatever as to the nature of the experimental apparatus employed nor as to the
range of variation of the basic parameters within which the surface-jump phcnom-
enon was investigated.
M. F. Skladnev
Card 2/2

SOV/1 24-57-5 -5552
Translation from: Referativnyy zhurnal. Mekhanika, 1957, Nr 5, p 63 (USSR)
AUTHOR: Levitskiy, B. F.
TITLE: Energy Dissipation in the Flow Between Head- Water and Tail-Water
by a Free Surface Jump (0 gashenii energii pri sopryazhenii
blyefov po tipu nezatoplenn08O poverkhnostnogo pryzhka)
PERIODICAL: Dokl. Llvovsk. politekhn. in-ta, 1955, Vol 1, Nr 2, pp 73-76
ABSTRACT: A brief presentation is made of the results of experiments performed
with the object of determining the energy-dissipation effect in a free
surface jump. The strearnwise rate of change in quantity of motion,
determined by elaborating data derived from measurements of the
equivalent pressure at various cross sections of the flow, is taken
as a measure of the extinction (or, to be more precise, dissipation)
of energy. The author comes to the conclusion that a free surface
jump dissipates energy to a lesser degree than a submerged hydraulic
jump occurring at greater depth. It should be noted that an analogous
conclusion may readily be obtained by comparing the magnitude of
energy losses computed by Bernoulli's equation for hydraulic jumps
Card 1/1 at the surface and at greater depth. M. F. Skladnev

124-57-1-520
Translation from: Referativnyy zhurnal, Mekhanika, 1957, Nr 1, p 65 (USSR)
AUTHOR- Levitskiy, B. F.
TITLE: On the Energy Dissipation in a Surface -to-bottom Flow From
Headwater to Tailwater (0 gashenii energii pri poverkhnostno-
donnom tipe sopryazheniya)
PERIODICAL: Nauch. zap. Llvovsk. politekhn. in-t, 1955, Nr 31, pp 89-92
A13STRACT: A discussion of the results of tests performed for the clarifi-
ation of energy dissipation problem in the surface -to-bottom
type of headwater-to-tailwater discharge. 130 test runs were
made to cover a turbulence -factor range at the discharge lip
corresponding to Froude numbers from 5 to 70. The pressure
field in the flow beyond the spillway crest was measured dur-
ing the tests. The energy of the flow in several sections of
the headwater- to-tailwate r discharge was expressed by the
quantity of motion per second in a given section which was
calculated by means of the equation of the quantity of motion.
The lon8itudinal variations in the quantity of motion along the
Card 1/2 flow are depicted graphically, also the variations of the relative

124-57-1-520
On the Energy Dissipation (cont. )
quantity of motion along its length. The main energy dissipation in the
surface - to-bottom type of a headwater- to-tailwater discharge occurs at
a distance of appx. 16 (a q?/ g)1/3 from the apron step; the energy dissi-
pation due to the stationary transverse tailwater bottom eddy is insigni-
ficant, whereas the surface eddy affords an intense energy dissipation.
T. N. Astaficheva
1. Water--Turbulence--Energy losses--Analysis

124-57-1-521
Translation from: Referativnyy zhurnal, Mekhanika, 1957, Nr 1, p 65 (USSR)
AUTHOR: Levitskiy, B. F.
TITLE: t;iablishment of the Submersion Boundary of a Surface Jump
(Ustanovleniye granitsy zatopleniya poverkhnostnogo pryzhka)
PERIODICAL: Nauch. zap. Lvovsk. politekhn. in-t, 1955, Nr 31, pp 109-113
ABSTRACT: A relationship is proposed for the magnitude of the piezomet-
ric height ho under the jet at its issuance from a ledge at the point
of the submersion of a surface jump:
ho = 0. 815 qZ hZ
gh
where h is the thickness of the jet at the ledge, q is the specific
discharge, and g is the acceleration due to gravity. The relat-
ionship is obtained from an application of the law of the quantity
M motion to a space limited by the free horizontal surface plane
of the jet, the horizontal plane passing through the ledge, a vert-
ical plane intersecting the jet at a distance of 1. 5 h to 2h from
Card 1/2 the edge of the ledgeand avertical plane that intersectsthe curv-

IZ4-57-1-5ZI
Establishment of the Submersion Boundary of a Surface Jump
ing jet at the point of its greatest curvature. It is assumed that the hydro-
static low of pressure distribution obtains in either vertical boundary plane
and that the pressure in the lower horizontal plane has a constant value,
ho. The relationship is recommended for use at Froude numbers