{"id":165012,"date":"2023-03-17T08:59:13","date_gmt":"2023-03-17T08:59:13","guid":{"rendered":"\/knowledge\/forums\/topic\/how-to-solve-radiation-only-in-solids-without-fluid-cell-zone\/"},"modified":"2023-07-31T12:26:44","modified_gmt":"2023-07-31T12:26:44","slug":"how-to-solve-radiation-only-in-solids-without-fluid-cell-zone","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-to-solve-radiation-only-in-solids-without-fluid-cell-zone\/","title":{"rendered":"How to solve radiation only in solids without fluid cell zone?"},"content":{"rendered":"<p>For using radiation only in solids, you can use DO model in Fluent. In your model you will need to define cell zone as solid. Then you will need to enable Energy equation under Setting Up Physics > Models. Then in Radiation, please select DO model. Under boundary condition of solid walls, please select semi-transparent under BC Type in Radiation tab. Give other inputs. In Solving tab, go to Controls > Equations and deselect Flow so that flow equations are not solved.  Keywords: DO, Radiation, Solids, Fluent<\/p>\n","protected":false},"template":"","class_list":["post-165012","topic","type-topic","status-publish","hentry","topic-tag-discrete-ordinates","topic-tag-fluent","topic-tag-fluid-dynamics","topic-tag-heat-transfer-and-radiation"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"For using radiation only in solids, you can use DO model in Fluent. In your model you will need to define cell zone as solid. Then you will need to enable Energy equation under Setting Up Physics &gt; Models. Then in Radiation, please select DO model. Under boundary condition of solid walls, please select semi-transparent\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-to-solve-radiation-only-in-solids-without-fluid-cell-zone\/\" \/>\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 Knowledge | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"How to solve radiation only in solids without fluid cell zone? | Ansys Knowledge\" \/>\n\t\t<meta property=\"og:description\" content=\"For using radiation only in solids, you can use DO model in Fluent. In your model you will need to define cell zone as solid. Then you will need to enable Energy equation under Setting Up Physics &gt; Models. 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