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
收藏
页码：806 / 810
页数：5
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