Effects of shear-thinning/thickening nature on the stability of Couette-like flow with uniform crossflow

被引：3

作者：

Liu, Yu-Quan ^{[1
]}

Peng, Jie ^{[1
]}

Zhu, Ke-Qin ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Engn Mech, Beijing 100084, Peoples R China

来源：

ACTA MECHANICA SINICA | 2013年 / 29卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Power-law fluid; Couette-like flow; Crossflow; Linear stability; POWER-LAW FLUID; POISEUILLE FLOW; HYDRODYNAMIC STABILITY; CHANNEL FLOW; WALLS;

D O I：

10.1007/s10409-013-0092-4

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The linear stability of wall-injected pressuredriven Couette-like flow in power-law fluids is studied. Previous study on this kind of flow for Newtonian fluids by Nicoud and Angilella [Phys. Rev. E 56, 3000 (1997)] was extended to power-law fluids to understand the effects of shear-thinning/thickening nature on the flow stability. A related expression between the critical crossflow Reynolds number for Newtonian fluids and that for power-law fluids is obtained as the streamwise Reynolds number is large enough based on numerical computations, and verified theoretically in the case of a limiting condition with the power-law index.

引用

页码：806 / 810

页数：5

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