流体运动中的涡量与旋转运动
首发时间:2019-12-13
摘要:根据一般流体运动中矢量场的输运特性,得到流场运动所诱导的旋转矢量场所满足的时空演化方程;利用一般正交曲线坐标系的表述,进一步得到粘性边界条件下旋转矢量场所满足的边界条件;最后,讨论了有关边界条件的简单解。
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Vorticity and rotation motion in fluid dynamics
Abstract:According to the transport characteristics of vector field in general flow field, the evolution equation of rotational vector field induced by vortex flow field is obtained; the boundary equation of this kinds of vector field satisfying viscous boundary condition is obtained by using the expression of general curvilinear coordinate system; finally, the simplest form solution is discussed.
Keywords: fluid dynamics vorticity rotation motion vortex identification
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