{"id":370805,"date":"2024-07-05T16:55:02","date_gmt":"2024-07-05T16:55:02","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mass-source-term-in-the-continuity-equation\/"},"modified":"2024-07-05T16:55:02","modified_gmt":"2024-07-05T16:55:02","slug":"mass-source-term-in-the-continuity-equation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mass-source-term-in-the-continuity-equation\/","title":{"rendered":"Mass Source Term in the Continuity Equation"},"content":{"rendered":"<p>Hi everyone,<br \/>I want to add a mass source term in the continuity equation for a two phase VOF problem. One phase is solid and the other phase is a gas. The mass source added is same as the solid phase. Can someone please tell which macro to use, DEFINE_SOURCE or DEFINE_DPM_SOURCE? I have read in a paper that it is an injection proper using DPM. But how to add a mass source in the continuity equation for a two phase problem?<\/p>\n<p>I have tried DEFINE_DPM_SOURCE when using interaction with continuous phase but if I use DEFINE_SOURCE, I don&#8217;t understand where to add the UDF?<br \/>Any help is much appreciated. Thanks&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-370805","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=\"Hi everyone,I want to add a mass source term in the continuity equation for a two phase VOF problem. One phase is solid and the other phase is a gas. The mass source added is same as the solid phase. Can someone please tell which macro to use, DEFINE_SOURCE or DEFINE_DPM_SOURCE? I have read in\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mass-source-term-in-the-continuity-equation\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Mass Source Term in the Continuity Equation | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hi everyone,I want to add a mass source term in the continuity equation for a two phase VOF problem. One phase is solid and the other phase is a gas. The mass source added is same as the solid phase. Can someone please tell which macro to use, DEFINE_SOURCE or DEFINE_DPM_SOURCE? I have read in\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mass-source-term-in-the-continuity-equation\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-07-05T16:55:02+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-07-05T16:55:02+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Mass Source Term in the Continuity Equation | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hi everyone,I want to add a mass source term in the continuity equation for a two phase VOF problem. One phase is solid and the other phase is a gas. The mass source added is same as the solid phase. Can someone please tell which macro to use, DEFINE_SOURCE or DEFINE_DPM_SOURCE? 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