SCIENTIFIC ABSTRACT BARENBLATT, G. I - BARENTS, S.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000203610018-0
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: June 8, 2000
• Sequence Number: 18
• Publication Date: December 31, 1967
• Content Type: SCIENCEAB

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ACC NR- AP5021911 SOURCE CODE: UR/0207/65/000/004/0137/0138
AUTHOR: Barenblatt, G.
V. P. (MOSCOW); Sholomo.-~~h
ORG: none
TITLE: Effect of small
flow
I, (Moscow); BulinaL I My~nLk
~G. I. (HDSCOW)
additions of high molecular solutions on fluid
SOURCE: Zhurnal prikladnoy mekhaniki i tekhnicheskoy fiziki, no.
40
1965, 137-138
TOPIC TAGS: fluid flow, turbulent flow, Reynolds number
ABSTRACT: An experiment is described that Wits designed to(show
the
cause of a sharp decrease in Rkessure losse-s in turbulent WS. it
is~;
10
shown that this loss is due to a change in-le pulsatliig
-mottFn-after a
small amount of high molecular compounds is introduced into the
flow.
~A diagram of the apparatus is given. Acqueous solutions of
polyvinvl,
alcoholland carboxymethyl cellMlose 1were used as additives. The
experi--
M wai conducted for Reynolds numbers of 3.2-103 and 5300. The
auth-;
ors thank V. r. Shushpan v for his kind copperation; V. P.
Karkhov and
I. I. Slezing r for their valuable comments, and V. V.-TikhomirQx
and
Card 1/2

L '-6683-66
ACC NR% AP5,0219il
V. S. Shmelev for their participation in the experiments. Orig. art.
had: 1 fi-gil-re-
SUB CODE: 20/
SUBM DATE: 26Feb65/ ORIG REF: 001/ OTH REF: 003
2 / 2

(W) /r.PP'
?7L5-66 Forr (ra' In4p (c) 'jnv""'
7C-CN-W,-AP5027273 SOURCE Co UR/C,207/65/000/C~05/C)066/91)75
DEf,
AUTHORS: B,!irenb qj~~I. (Moscow); I;Ozyrev,..I'U (MOSCOU);
114alinin. N, I. 1~1
(Moscow); Piyloy, D. YA. (Moscow). Shefiterilcov. S. A.
(1.1,oscow)
ORG: none
TITLE : Vibro polymeric materials
C
K~of ~ -
SOURCE: Zhurnal prildadnoy mekbrtniki i telfticb9skoy fizzihi,
no. 5, 1965, 68-75
TOPIC TAGS: polymer, caprolyte, stress nnalyris,, atross,
stross r~.oasuroTAojjt, crual),
creQD inechanism 11
10MU-CT: This paper presents experimental data and theoretical
discuscion an tho
PIA-40110menon of vibrocreep in poly-meric interials. The e:qj
orimental procPdu3.,9 con-
Sisted, of applying a vibrato stress to a specimen under a
static st-ress and deter-
ry 11
min-ing the resultant creep L as a function of tize. A
3chomatic of experimental
setup is given, and 'the experimental results are presented
graphically. The ex-
perimental results are compared with the thooratical. expreazion
I
e, exp 11
0
whore 6 a is the creep deformation, U the energy of activation,
a-- stress,
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ACC NRs AP5027273
~ - temperature, R - the universal gas constant, a constant, t -
the time, and
kr is the transform of 21 1
= X1? (U
F -RT
0
in which F(E c) is given by F (e,) exp - (U -
RV
after S. N. Zhurkov and T. N. Sanfirova (Temperaturnaya
zavisimost' prochnosti
chistykh metallov. Dokl. AN SSSR, 1955, t. 101. No. 2). It was
found that the
application of an oscillating stress causes an increase-in the
creep velocity in
polymeric materials. The authors thank V, A, Volodchenkov N. I.
Gallchin, Yu, S.
-Levah , Yu. P. Maksimahev and V.'V. Tikhomiroy for their
participation in the
experiments. Orig. art. has: 4 graphs and 22 equations.
SUB GOIZ: -OG/ SUBM DM: 17Jun65/ ORIG REF: 013/ OTH REF: 005
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L 7o6h 56 EWT (1) 10-1P (m) /a4T (z~)/EPF(c) /EPF(h)
-2/76WA(d) /E'-'T (J) ITIFCS (k) /r'TC (m)
ACC NRt Ap5027287 VY/ nrl SOURCE CODE:
UR/020`7/65/000/005/0147/0148
AUTHORS: Varenblatt, G. - Bulina. I. G. Ya. B. 1~9
_L (Moscow) Moscow); Zelldovich, ~e
; Sholomovich'
(Moscow).; KalashniXov V' F".(Moscowi G I. (Moscow
ORG: none
TITLE: On one possible mechanism of the effect of small
additions of high-molecular
weight compounds on turbulence
SOURCE: Zhurnal prikladnoy makhaniki i tekhnicheskoy fiziki,
no. 5, 1965, 147-148
r q- / (- 7-~' /
TOPIC TJOS: hydrodynamics, turbulent flow, turbulence, vortex,
turbulence depressant,
polymer 0/1~'
ABSTRACT: To explain and extend the data of G. I. Barenblatt,
I. G. Bulina, V. P.
Myasnikov and G. I. Sholomovich (0 vliyanii malykh dobavok
rastvorinykh
vysokomolekulyarnykh soyedineniy na. rszhim dvizheniya
zhidkosti. PMTF, 1965, No. 4)
on the effect of small additions of soluble high-mclecular
weight compounds on tur-
bulence,, the particle sizes of sodium carboxymethylcellulose
polymerlin aqueous solu-
tions were determined. The experimental procedure c-oFs~.is!
~Jin detei~mining the
viscosity of an aqueous solution of sodium
carboxymethylcelldlose by three different
methods: capillary tubes, filter installation and Hepler
viscosimeter, and compari-
son of the latter with the viscosity of a glycerine solution
having the same vis-
cosity. The experimental results are tabulated. It was found
that the particle

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ACC NR: AP5027287
size of the polymer was of the order of 10 cm. This particle
diameter is just
sufficient to explain the experimental results of G. I.
Barenblatt et a! (see above)
on the assumption that the observed decrease J-n turbulence is
due to the destruction
of vortices in th9 11' uid by the particles of the additive,
The authors thank V. A.
4asnikov for their criticisn
Go'Adtsov and V.,-Ml 10 -- 1, Ye. A.-*akotin for construction
oT-M-e-`exporiment-aif enko. Z. P.
in~itaMlion, and Y
and A" b"Te kin for their participation in the e`x'perimental
measurements.
-41QY-A . 0 0 yp
Orig. art. 3-a-ii~.711-t"~-ffe-.-
SUB CODE: GO/ SUBM DATE: 26jul65/ ORIG REF: 004/ OTH REF: 004
r J
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L 10812-6�
ACC NRs
AP6000536 SOURCE CODE: 'UR/0040/65/029/OD6/0977/099Z
(Moscow); Tentov, V. M. (Moscow)j Salganik, R. L. (Moscow)
AUTHORS: Barenblatt,
ORGt none
TITLEt Excitation pulse propagation in the electrochenical diffusion
model of the
nerve
SOURCE: Prikladnaya ma,~amatika i nekhaniks, Y. 29, no. 6, 1965,
977-992
TOPIC TAGSi nerve fiber, nervous system, electrochemical analysisp
curTent densityp
electric potential, nitric aoidt Green function
ABSTRACT: The propagation of sensory pulses along nerves is analyzed
using an
electrochemical diffusion model. The model is based on the K. F.
Bonhoeffer proposi-
tion (Vetter K. J. Zur Aktivierung und Repassivierung von passivem
Eisen in
SalpeteraRures Z, RWs. Chem., 1950, B- i06p 1/3P Sept., S- 127-159)
which is given
schematically in Fig. 1.
3
21
Fig. 1.

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ACC NRL AP6000536
In this figure, (1) represents an iron structure placed on a
capillary (3) filled with
concentrated nitric acid (2). The interaction of the nitric acid with
the iron leads
either to the solution of iron in the acid or to formation on the
fiber of a thin
oxide level. This layer is either passive or active and is
characterized by electric
current densities which depend on the oxide film formation process.
First, a set of
equations is derived to calculate acid concentration C, electric
potential generation
(py and active surface formation (x under theboundary conditions of
impenetrable and
electrically isolated capillaries. The electric pulses are assumed to
travel with
constant speed w such that
=q'G,,r), C = C M 1), C C M
and
00, r) 0. C 00, r) CO'
The equilibrium pulse propagation in the nerve then oonsists of the
solution of the
three equations ia
a) i2b]
aul +/2o)+ --a)isb+ fah. +(I -a)hbJC'
dcs
ac acl
WT;=D(~T+ "+
042 Oro r Trl
First, the conditions for the existence-of pulses are analyzed in
detail. It is
ahlown that the aotivation front propagates with a finite velocity
and that if any
changes in the acid concentration >