Faculty of Physics
M.V.Lomonosov Moscow State University
Brief Report

One-parameter equations in describing average-velocity profiles for turbulent flows of weak polymer solutions

V.P. Petrov, V.I. Sugrei, Yu.L. Shchev'ev

Moscow University Physics Bulletin 1984. 39. N 6. P. 89

  • Article

Introducing a weak polymer solution into a flowing liquid reduces the resistance coefficient, thickens the viscous sublayer, and increases the velocity gradients. To describe the average-velocity profile in a turbulent flow, one can use one-parameter equations in which the adjustable constants in the logarithmic distributions for the average velocities are expressed in terms of the thickness of the viscous sublayer in the transitional region and the turbulent core, that thickness being $2/\kappa$ where $\kappa$ is the Karman parameter.

Rissian citation:
В.П. Петров, В.И. Сугрей, Ю.Л. Щевьев.
Описание профиля осредненных скоростей турбулентных потоков слабых растворов полимеров однопараметрическими уравнениями.
Вестн. Моск. ун-та. Сер. 3. Физ. Астрон. 1984. № 6. С. 77.
V.P. Petrov, V.I. Sugrei, Yu.L. Shchev'ev
Department of Marine and Inland Water Physics, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
Issue 6, 1984

Moscow University Physics Bulletin

Science News of the Faculty of Physics, Lomonosov Moscow State University

This new information publication, which is intended to convey to the staff, students and graduate students, faculty colleagues and partners of the main achievements of scientists and scientific information on the events in the life of university physicists.