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Forum: Fluent UDF and Scheme Programming

August 5, 2013, 17:23

Replies: 4

laplacian operatorin udf

Views: 4,387

Posted By adam14qin

Sorry, that was a typo. The gradient is taken...

Sorry, that was a typo. The gradient is taken from a scalar (gradient is a vector C_UDSI_G(c,t,0)). and the laplacian of a scalar is a scalar：
laplacian = C_UDSI(c,t,1)[0]+C_UDSI(c,t,2)[1]

Forum: Fluent UDF and Scheme Programming

July 31, 2013, 17:44

Replies: 4

laplacian operatorin udf

Views: 4,387

Posted By adam14qin

Since we can only take the gradient of a scalar...

Since we can only take the gradient of a scalar in FLUENT, to calculate laplacian of a scalar whose value is stored in a UDS C_UDSI(c,t,0), for example two dimensional d2f/dx2+d2f/dy2, you can use...

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