Scale-up criterion of turbulent flows of dilute polymer solutions and a generalized dependence of the friction coefficient

被引：1

作者：

Amfilokhiev V.B. ^{[1
]}

Artyushkov L.S. ^{[1
]}

机构：

来源：

Fluid Dynamics | 1998年 / 33卷 / 4期

关键词：

Reynolds Number; Drag Coefficient; Drag Reduction; Deborah Number; Dilute Polymer Solution;

D O I：

10.1007/BF02698230

中图分类号：

学科分类号：

摘要：

Dilute polymer solutions that reduce turbulent friction are treated as viscoelastic liquids for which, in addition to the Reynolds number, the scale-up criteria include the Deborah or elasticity number. Introduction of a generalized (viscoelastic) Reynolds number makes it possible to reduce the experimental curves for the drag coefficients obtained in pipes of various diameters at different and concentrations to a unified dependence.

引用

页码：625 / 629

页数：4

共 3 条

[1] Kinetic Energy Budget in Turbulent Flows of Dilute Polymer Solutions
Serafini, Francesco
Battista, Francesco
Gualtieri, Paolo
Casciola, Carlo Massimo
FLOW TURBULENCE AND COMBUSTION, 2024, 112 (01) : 3 - 14
[2] DEGRADATION EFFECTS OF DILUTE POLYMER-SOLUTIONS ON TURBULENT DRAG REDUCTION IN PIPE FLOWS
DENTOONDER, JMJ
DRAAD, AA
KUIKEN, GDC
NIEUWSTADT, FTM
APPLIED SCIENTIFIC RESEARCH, 1995, 55 (01): : 63 - 82
[3] Polymer degradation of dilute solutions in turbulent drag reducing flows in a cylindrical double gap rheometer device
Pereira, Anselmo S.
Soares, Edson J.
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, 2012, 179 : 9 - 22

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