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October 7, 2010, 08:33 |
planar vorticity calculation
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#1 |
New Member
harry
Join Date: May 2009
Posts: 29
Rep Power: 17 |
Hi all,
I'm working on a secondary flow induced mixing in a T-shape channel. I'm interested in calculating the cross sectional or transversal directional planar vorticity which I believe can lead to the secondary flow pattern. However, the channel is not straight, zigzag shape instead. The difficulty is how to obtain the planar vorticity value on a certain cross sectional plane which is not parallel to any axis, i.e, x, y or z direction. I can't find any solution in CFX POST so far. Could anyone share me some advice plz? thanks. Harry |
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October 7, 2010, 15:38 |
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#2 | |
Senior Member
Michael P. Owen
Join Date: Mar 2009
Posts: 196
Rep Power: 17 |
Quote:
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October 8, 2010, 04:36 |
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#3 |
New Member
harry
Join Date: May 2009
Posts: 29
Rep Power: 17 |
Hi,
I used function calculator in POST to obtain the value. Do you know how to get the normal component of vorticity?I established a vector normal to the plane, but I still don't know how to make use of this vector to get the normal component. Thanks. |
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October 12, 2010, 16:34 |
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#4 |
Senior Member
Michael P. Owen
Join Date: Mar 2009
Posts: 196
Rep Power: 17 |
Again, just do the math. Just project the vector vorticity onto the plane normal, i.e. calculate the dot product of the vorticity vector and the plane normal.
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