{"id":362461,"date":"2024-04-16T11:54:53","date_gmt":"2024-04-16T11:54:53","guid":{"rendered":"\/forum\/forums\/topic\/no-ignition-in-premixed-combustion\/"},"modified":"2024-04-17T12:59:40","modified_gmt":"2024-04-17T12:59:40","slug":"no-ignition-in-premixed-combustion","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/no-ignition-in-premixed-combustion\/","title":{"rendered":"No ignition in premixed combustion"},"content":{"rendered":"<p>Hi everyone!<\/p>\n<p>I&#8217;m currently trying to simulate a premixed NH3-flame (steady-state).<\/p>\n<p>I&#8217;ve imported the GRI 3.0 mechanism. I&#8217;ve selected Species Transport, volumetric reactions, Eddy-Dissipation concept and applied a velocity inlet (1 inlet) where I&#8217;ve specified mole fractions of NH3 and O2 which is at 300 K. Additionally, I&#8217;ve initialized the domain with a temperature of 2500 K in order to ignite the mixture. The temperature contours however show 300 K in the entire domain after simulating, and the NH3 doesn&#8217;t react.<\/p>\n<p>Before running this simulation, I&#8217;ve used the same settings for methane-air mixture (even without initializing T=2500 K) and this does react.<\/p>\n<p>Do you have any tips on how to solve this problem?<\/p>\n<p>Thank you in advance!<\/p>\n","protected":false},"template":"","class_list":["post-362461","topic","type-topic","status-closed","hentry","topic-tag-cfd-combustion","topic-tag-premixed-combustion"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["338707","101181","110805"],"_bbp_author_ip":["96.7.218.223"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["627"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1713358766:287280"],"_bbp_topic_id":["362461"],"_bbp_forum_id":["27792"],"_bbp_engagement":["101181","110805","338707"],"_bbp_voice_count":["3"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["378053"],"_bbp_last_active_id":["378053"],"_bbp_last_active_time":["2024-08-13 04:57:21"]},"test":"ee8308dc7e088d8eb5de54d35ba7dc89f704704d"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/362461","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\/362461\/revisions"}],"predecessor-version":[{"id":362697,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/362461\/revisions\/362697"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=362461"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}