Averaging of turbulent micropolar media: turbulent couple-stress, heat flux, and energy

被引：0
|
作者：
Ostoja-Starzewski, Martin [1 ,2 ]
机构：
[1] Univ Illinois, Dept Mech Sci & Engn, Inst Condensed Matter Theory, Urbana, IL 61801 USA
[2] Univ Illinois, Beckman Inst, Urbana, IL 61801 USA
来源：
ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND PHYSIK | 2021年 / 72卷 / 03期
基金：
美国国家卫生研究院;
关键词：
Micropolar media; Turbulence; Fluctuations; Reynolds stress; Couple-stress;
D O I：
10.1007/s00033-021-01500-2
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
The equations governing turbulent flow of micropolar incompressible media are studied using the Reynolds decomposition. The average force-stress is augmented by the Reynolds stress of the same form as in classical continuum mechanics, while the average couple-stress is augmented by a new turbulent couple-stress. Additionally, the average heat flux and internal energy density are modified from the expressions known in classical turbulent fluids. On this basis, the entropy inequality is examined in both classical and micropolar continuum settings.
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页数：8
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