INITIATION OF ROTATION IN FLUID NEAR A FREE BOUNDARY

IF 0.5 4区工程技术 Q4 MECHANICS

Journal of Applied Mechanics and Technical Physics Pub Date : 2023-10-26 DOI:10.1134/S0021894423040089

V. A. Batishchev

引用次数: 0

Abstract

A system of Navier–Stokes equations is used to calculate rotational modes of thermocapillary fluid flows in a semi-infinite space bounded from above by a non-deformable free boundary, with a local temperature distribution specified on it. It is shown that, near the free boundary in the boundary layer, bifurcation causes rotational modes of fluid flows as this boundary is unevenly cooled. Secondary rotational modes are calculated, which form two families of solutions that depend on several parameters, two of which are not determined by external conditions.

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在靠近自由边界的流体中开始旋转

Navier–Stokes方程组用于计算半无限空间中热毛细流体流动的旋转模式，该空间由不可变形的自由边界从上方界定，并在其上指定局部温度分布。结果表明，在边界层的自由边界附近，由于边界冷却不均匀，分叉导致了流体流动的旋转模式。计算了二次旋转模式，形成了两个取决于几个参数的解族，其中两个参数不是由外部条件决定的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Applied Mechanics and Technical Physics 物理-力学

CiteScore

1.20

自引率

16.70%

发文量

审稿时长

4-8 weeks

期刊介绍： Journal of Applied Mechanics and Technical Physics is a journal published in collaboration with the Siberian Branch of the Russian Academy of Sciences. The Journal presents papers on fluid mechanics and applied physics. Each issue contains valuable contributions on hypersonic flows; boundary layer theory; turbulence and hydrodynamic stability; free boundary flows; plasma physics; shock waves; explosives and detonation processes; combustion theory; multiphase flows; heat and mass transfer; composite materials and thermal properties of new materials, plasticity, creep, and failure.