{"id":36948,"date":"2019-08-04T09:06:28","date_gmt":"2019-08-04T09:06:28","guid":{"rendered":"\/forum\/forums\/topic\/ansys-fluents-p-1-radiation-model-equations\/"},"modified":"2019-08-04T09:06:28","modified_gmt":"2019-08-04T09:06:28","slug":"ansys-fluents-p-1-radiation-model-equations","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-fluents-p-1-radiation-model-equations\/","title":{"rendered":"ANSYS Fluent\u2019s P-1 Radiation Model Equations"},"content":{"rendered":"<p>Hi everybody,<\/p>\n<p><\/p>\n<p>I am currently implementing the P1 radiation model via UDF in Fluent and have therefore looked at the example &#8220;8.2.5.2. Implementing ANSYS Fluent&#8217;s P-1 Radiation Model Using User-Defined Scalars&#8221; in the Ansys Fluent Customization Manual 18.2 (page 537). Can someone explain to me how to derive the formula 8.11?<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/a8993275-bce0-4061-8c99-aa9f008a55f8\/cdba80e9-5901-4a2a-a6a9-aa9f00958741_ansys-fluent-customization-manual.jpg?width=690&amp;upscale=false\" alt=\"Ansys Fluent Customization Manual 18.2, page 537\"><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>Many thanks in advance.<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-36948","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["9123"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0"],"_btv_view_count":["1436"],"_bbp_subscription":["241832"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["36948"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","22555","167329"],"_bbp_voice_count":["3"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["91879"],"_bbp_last_active_id":["91879"],"_bbp_last_active_time":["2019-08-12 14:54:35"]},"test":"sk95"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/36948","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":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/36948\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=36948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}