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-   -   gradient at faces (http://www.cfd-online.com/Forums/fluent/31666-gradient-faces.html)

Andrew Garrard June 16, 2003 12:22

gradient at faces
 
Can anyone tell me how to extract the gradient of a variable, such as the concentration gradient, at a face? I read in the manual that you should use a C_YI_RG macro, and I know how to determine the cell adjcent to a face using a F_C0 macro. When I compline my UDF I get a Argument Missmatch error. Anyone? How do you get the value of a gradient of a variable at a face?


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