{"id":356286,"date":"2024-03-11T07:33:33","date_gmt":"2024-03-11T07:33:33","guid":{"rendered":"\/forum\/forums\/topic\/user-defined-function-error\/"},"modified":"2024-03-11T07:33:33","modified_gmt":"2024-03-11T07:33:33","slug":"user-defined-function-error","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/user-defined-function-error\/","title":{"rendered":"user defined function error"},"content":{"rendered":"<p>I was trying to simulate melting of PCM with some nanoparticles. with eulerian approach, I also developed a udf code&nbsp; to take care of melting of the PCM. as the solidification\/melting option is not compatible with eulerian approach.&nbsp;<\/p>\n<p>In the code there are some terms like &#8220;C_PHASE_INT&#8221; . when i tried to interpret the code, fluent is showing error as undeclared variable.<\/p>\n<p>Fluent does not have a built-in macro for the phase indicator ?<\/p>\n<p>is it true that using Fluent with the Eulerian model and the enthalpy-porosity approach, the phase indicator may not be directly accessible in a UDF. ?<\/p>\n","protected":false},"template":"","class_list":["post-356286","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I was trying to simulate melting of PCM with some nanoparticles. with eulerian approach, I also developed a udf code to take care of melting of the PCM. as the solidification\/melting option is not compatible with eulerian approach. 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