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January 28, 2014, 05:47 |
vorticity in pipe flow
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#1 |
New Member
Shahzad Munir
Join Date: Feb 2012
Posts: 14
Rep Power: 14 |
Dear All,
I am using PIV data for a pipe flow in matlab to calculate vorticity. After reading PIV data in matlab, it appears to be of these values. x=<39*31 double>, y=<39*31d ouble>,u=<39*31*204 double>,v=<39*31*204 double>. Now when I try to use curl command it gives me a message "U,V must all be a 2D arrays." I have also calculated partial derivatives of u and v like this [dudx,dudy] = gradient(u,h);[dvdx,dvdy] = gradient(v,h). Do I just have to subtract dvdy-dudx to get vorticity? Again it will appear of value this vorticity=<39*31*204 double>. Please guide. Thanks |
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