{"id":160537,"date":"2021-07-20T17:11:49","date_gmt":"2021-07-20T17:11:49","guid":{"rendered":"\/forum\/forums\/topic\/gradient-of-temperature-in-momentum-source-term-while-using-solidification-melting-with-vof\/"},"modified":"2021-07-22T11:33:03","modified_gmt":"2021-07-22T11:33:03","slug":"gradient-of-temperature-in-momentum-source-term-while-using-solidification-melting-with-vof","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/gradient-of-temperature-in-momentum-source-term-while-using-solidification-melting-with-vof\/","title":{"rendered":"Gradient of temperature in momentum source term while using solidification\/melting with VOF"},"content":{"rendered":"
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I am trying to model laser melting. I have written 4 separate UDFs(4 separate C files) for energy term and the 3 momentum terms. When I run the simulation only with the energy source term, the simulation runs fine. Next, when I add the 3 momentum terms also, I face problem. In the momentum source terms, I need the gradient of temperature. I am using FLUENT 2020 R2. My basic doubts are:<\/p>\n

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  1. Since I have written momentum source terms in separate C files from that of energy, will I be able to access C_T_G(c,t)? <\/li>\n
  2. I read somewhere that "Keep temporary solver memory from being freed?" is not available in FLUENT 2020 R2 and also not for multiphase flows if I am using Fluent in parallel.<\/li>\n
  3. If both of the above are not possible, what is the way to get access to temperature gradient? Can it be done using UDSI and then getting its gradient, UDSI_G?<\/li>\n<\/ol>\n

    Any help is much appreciated.<\/p>\n

    Thanks<\/p>\n","protected":false},"template":"","class_list":["post-160537","topic","type-topic","status-closed","hentry","topic-tag-temperature-gradient-1","topic-tag-vof"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t