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Vorticity magnitude

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Old   January 19, 2005, 05:25
Default Vorticity magnitude
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CFD-junior
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Please could someone tell me how to calculate the vorticity magnitude.

Thanks
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Old   January 19, 2005, 10:04
Default Re: Vorticity magnitude
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ag
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Compute the curl of velocity and take the magnitude of the vector.
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Old   January 20, 2005, 14:21
Default Re: Vorticity magnitude
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wx = dw/dy - dv/dz wy = du/dz - dw/dx wz = dv/dx - du/dy

w = wx(i) + wy(j) + wz(k)

vorticity magnitude = sqrt(w.w) = sqrt( wx*wx +wy*wy +wz*wz)

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Old   January 21, 2005, 22:59
Default Re: Vorticity magnitude
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w0er
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Could this function be defined into any cfd post.
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Old   August 17, 2011, 10:07
Default or with vorticity tensor
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|w|=||wij||

where wij is the vorticity tensor defined as the antysymmetric part of the velocity gradient tensor. Its magnitude defined by:
||wij||=sqrt(2wij*wij)
and its the same as the magnitude of the vorticity vector as defined earlier.
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