CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   strain rate at arbitrary position in a cell (http://www.cfd-online.com/Forums/fluent/32968-strain-rate-arbitrary-position-cell.html)

K. Kevala February 4, 2004 18:14

strain rate at arbitrary position in a cell
 
The strain rate magnitude is available at the cell centers for plotting contours. I would like to extract the strain rate at arbitrary positions in the cell using interpolation. I know fluent does this when plotting contours using interpolation from node values.

I am trying to implement this using a udf, and have had no luck. Does anyone know if, for a given cell that I know the index and thread to, if I can get the strain values at the nodes of the cell easily using some sort of macro. Therre is none listed in the udf manual. If I have the strain values at the nodes, I could use some sort of finite element shape function to interpolate to my point of interest. Using the strain rate at the cell center does not give me the resolution I desire. Thanks in advance


All times are GMT -4. The time now is 18:11.