{"id":298747,"date":"2023-08-08T13:37:40","date_gmt":"2023-08-08T13:37:40","guid":{"rendered":"\/forum\/forums\/reply\/298747\/"},"modified":"2023-08-08T13:37:40","modified_gmt":"2023-08-08T13:37:40","slug":"298747","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/298747\/","title":{"rendered":"Reply To: Boundary condition set at the gas-liquid interface in DPM model"},"content":{"rendered":"<p>&lt;p&gt;The DPM model doesn&#8217;t see the free surface as such, it sees the cell fluid properties. So, unless you want to start some (very complex) UDF coding your particles will behave exactly as the flow in that cell forces them too.&nbsp;&lt;\/p&gt;&lt;p&gt;The flpj file is a way for Fluent to keep data files together for a transient run. Can you check disc\/file access permissions as it should work fine.&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-298747","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"The DPM model doesn&#039;t see the free surface as such, it sees the cell fluid properties. So, unless you want to start some (very complex) UDF coding your particles will behave exactly as the flow in that cell forces them too. The flpj file is a way for Fluent to keep data files together for a\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/298747\/\" \/>\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=\"Reply To: Boundary condition set at the gas-liquid interface in DPM model | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"The DPM model doesn&#039;t see the free surface as such, it sees the cell fluid properties. So, unless you want to start some (very complex) UDF coding your particles will behave exactly as the flow in that cell forces them too. The flpj file is a way for Fluent to keep data files together for a\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/298747\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-08-08T13:37:40+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-08-08T13:37:40+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Boundary condition set at the gas-liquid interface in DPM model | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"The DPM model doesn&#039;t see the free surface as such, it sees the cell fluid properties. So, unless you want to start some (very complex) UDF coding your particles will behave exactly as the flow in that cell forces them too. 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