{"id":348335,"date":"2024-02-01T16:40:26","date_gmt":"2024-02-01T16:40:26","guid":{"rendered":"\/forum\/forums\/topic\/low-heat-generation-due-to-thermal-runaway-reactions-when-adding-combustion\/"},"modified":"2024-02-01T16:40:26","modified_gmt":"2024-02-01T16:40:26","slug":"low-heat-generation-due-to-thermal-runaway-reactions-when-adding-combustion","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/low-heat-generation-due-to-thermal-runaway-reactions-when-adding-combustion\/","title":{"rendered":"Low heat generation due to thermal runaway reactions when adding combustion"},"content":{"rendered":"<p>Hi,<\/p>\n<p>I&#8217;m trying to model a battery during thermal runaway including the combustion of the vented gas.&nbsp;When running a non-reactive model, the thermal abuse model is running fine :<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/02\/01-02-2024-1706805277-TRNonReac.png\" alt=\"\" width=\"929\" height=\"322\">&nbsp;<\/p>\n<p>Heat Generation due to thermal abuse reaction profile :<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/02\/01-02-2024-1706805315-HeatGenerationNonReac.png\" alt=\"\" width=\"814\" height=\"439\"><\/p>\n<p>When adding the partially premixed combustion model, heat generation from the thermal abuse is divided by ~100 :<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/02\/01-02-2024-1706805402-HeatGenCombustion.png\" alt=\"\" width=\"764\" height=\"407\"><\/p>\n<p>I&#8217;m running on Fluent 2023R2, using the CHT Coupling Battery Model with thermal abuse and the partially premixed combustion model with the Flamelet Generated Manifold.<\/p>\n<p>What could be the reason for such a change in behavior ?<\/p>\n<p>Thanks for your help.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-348335","topic","type-topic","status-closed","hentry","topic-tag-battery-modeling","topic-tag-combustion","topic-tag-fluent","topic-tag-heat-release"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["62474","5976","23673"],"_bbp_author_ip":["23.206.193.41"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["533"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["348335"],"_bbp_forum_id":["27792"],"_bbp_engagement":["5976","23673","62474"],"_bbp_voice_count":["3"],"_bbp_reply_count":["7"],"_bbp_last_reply_id":["351474"],"_bbp_last_active_id":["351474"],"_bbp_last_active_time":["2024-02-14 16:20:57"]},"test":"mathieu-goureaupolymtl-ca"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/348335","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\/348335\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=348335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}