{"id":372192,"date":"2024-07-16T17:56:40","date_gmt":"2024-07-16T17:56:40","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/radiation-heat-transfer\/"},"modified":"2024-07-16T18:15:52","modified_gmt":"2024-07-16T18:15:52","slug":"radiation-heat-transfer","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/radiation-heat-transfer\/","title":{"rendered":"Radiation Heat Transfer"},"content":{"rendered":"<p>Hello. I am beginner in Ansys Fluent and I need your help. I need to simulate the radiation heat transfer from a 3D emitter (3D model) to a 3D part with a 8 mm distance apart from eachother. I assigned the materials for the emitter and the part, and I constructed an enclosure with incompressible air as a fluid material. I set the radiation model to be DO, laminar viscousity, and energy equation is on. I set the cell zone conditions for the emitter and the part to participate in radiation. I set the temperature of the emitter to be 813K, and I set the boundary conditions of the part for all the walls to be mixed, with a free stream and external temperature of 300K, and convection heat rate of 20W\/m.K. However, after initialization and running the calculations, the part temperature is 300K, as there is no radiation. What is the key point that I did not do to have a radiation heat transfer for the part? Thank you in advance.<\/p>\n","protected":false},"template":"","class_list":["post-372192","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["437124","15476"],"_bbp_author_ip":["134.109.112.39"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["142"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1721153730:437124"],"_bbp_topic_id":["372192"],"_bbp_forum_id":["27792"],"_bbp_engagement":["15476","437124"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["372514"],"_bbp_last_active_id":["372514"],"_bbp_last_active_time":["2024-07-18 09:49:22"]},"test":"jawadkanso96gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/372192","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/372192\/revisions"}],"predecessor-version":[{"id":372196,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/372192\/revisions\/372196"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=372192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}