In fluid dynamics, Beltrami flows are flows in which the vorticity vector ω {\displaystyle {\boldsymbol {\omega }}} and the velocity vector v {\displaystyle \mathbf {v} } are parallel to each other. In other words, Beltrami flow is a flow in which the Lamb vector is zero.
In fluid dynamics, Beltrami flows are flows in which the vorticity vector ω {\displaystyle {\boldsymbol {\omega }}} and the velocity vector v {\displaystyle \mathbf {v} } are parallel to each other. In other words, Beltrami flow is a flow in which the Lamb vector is zero.
Source: Wikipedia "Beltrami flow" · CC BY-SA 4.0
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