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How to get face or cell a area in a DEFINE_SOURCE?

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March 22, 2017, 07:26	How to get face or cell a area in a DEFINE_SOURCE?	#1
KiteKathy New Member Kathrin Join Date: Mar 2017 Posts: 1 Rep Power: 0	Hi, I am a total freshman in Fluent and udf's and now I have to make a udf for a heat exchanger with a porous-zone. In the UDF I should calculate the (heat flux / volume) [W/m³], which will be included in my source term for energy. I must calculate my heat flux with Reynolds-Number, Prandtl-Number, Nusselt-Number, heat transfer coefficient etc… Now my Problem is, that I need the area of a cell or the length of a edge from a cell to calculate this values and I have no idea how I will get this information, especially in a DEFINE_SOURCE udf. Can someone help me how I must go on with this problem? Kind regards

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