Vorticity and curvature at a free surface
1998 ◽
Vol 356
◽
pp. 149-153
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Keyword(s):
For two-dimensional flow there is a simple relation between the vorticity at a stress-free surface and the surface curvature. In this note the relation is generalized to flow in three dimensions. It is shown that in addition to a component of vorticity perpendicular to the flow there is also a component parallel to the direction of flow. The latter vanishes only at an umbilical point or when the flow is in one of the two principal directions of curvature.
2012 ◽
Vol 24
(1)
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pp. 77-101
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Keyword(s):
1978 ◽
Vol 22
(03)
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pp. 193-202
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Keyword(s):
2019 ◽