The vorticity vector is DelxV = v/r sin(RV)H1, the Curl of the vector V. The unit vector H1, is perpendicular to the plane formed by the radius vector R and and the vector V.
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Speed, direction, average temperature, steadiness of direction,
vorticity.
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J. W. Naughton has written:
'Experiments on the enhancement of compressible mixing via
streamwise vorticity. Part l - Optical measurements' -- subject(s):
Vorticity, Turbulent mixing