NONSTATIONARY FLOW OF SOLUTIONS
OF FLEXIBLE-CHAIN POLYMERS IN 
A POROUS MEDIUM

V. G. Pogrebnyak,a V. S. Voloshin, b
and N. V. Naumchuka 

UDC 532.135:539.217

Aqueous solutions of polyethylene oxide have been studied 
under the conditions of nonstationary longitudinal flow. The investigations 
have confirmed the deviations from Darcy's law according to the mechanism 
the basis for which is provided by the concepts of a strong strain 
action of the hydrodynamic field on coiled macromolecules.

aEcological Center of Scientific-Applied Research 
at the M. Tugan-Baranovskii Donetsk State Economic and Trade 
University, 31 Shchors Str., Donetsk, 83050, Ukraine; email: 
interlink@prorect.donduet.edu.ua; aAzov State 
Technical University, Mariupol', Ukraine. Translated from 
Inzhenerno-Fizicheskii Zhurnal, Vol. 78, No. 5, pp. 123-127, 
September-October, 2005. Original article submitted 
October 27, 2004.