A note on the hydrodynamics of viscous fluids
A note on the hydrodynamics of viscous fluids
复制标题
关于粘性流体的流体动力学的注解
DOI:
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发表时间:
1994
期刊:
影响因子:
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通讯作者:
V. Trkal
中科院分区:
文献类型:
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作者:
V. Trkal
The cross-product of the velocity and the vorticity in a viscous incompressible fluid is formulated and its properties investigated. When the cross-product is identically null, either the flow is vortex-free, or the velocity and the vorticity are parallel to each other. The second case yields the following important result for three-dimensional flows: if the velocity and the vorticity are related by a position-independent scalar function, that function must be time-independent as well. (English translation of the seventy-five-years old Czech text — Trkal V.: Časopis pro pěstování mathematiky a fysiky48 (1919) 302–311.)