Averaging of turbulent micropolar media: turbulent couple-stress, heat flux, and energy.
Averaging of turbulent micropolar media: turbulent couple-stress, heat flux, and energy.
复制标题
湍流微极性介质的平均值：湍流偶应力、热通量和能量。
DOI：
10.1007/s00033-021-01500-2
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Ostoja-Starzewski,Martin
中科院分区：
文献类型：
--
作者：
Ostoja-Starzewski,Martin
本文用雷诺分解方法研究了微极不可压介质中的湍流运动方程。平均力-应力由与经典连续介质力学中相同形式的雷诺应力增大，而平均偶应力由新的湍流偶应力增大。此外，平均热通量和内部能量密度的经典湍流流体中已知的表达式进行了修改。在此基础上，研究了经典和微极连续介质中的熵不等式。
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.