{"id":40461,"date":"2020-01-28T14:20:04","date_gmt":"2020-01-28T14:20:04","guid":{"rendered":"\/forum\/forums\/topic\/chemkin-reactor-floating-point-exception\/"},"modified":"2020-01-28T14:20:04","modified_gmt":"2020-01-28T14:20:04","slug":"chemkin-reactor-floating-point-exception","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/chemkin-reactor-floating-point-exception\/","title":{"rendered":"CHEMKIN reactor &#8216;floating point exception&#8217;"},"content":{"rendered":"<p>Hello,<\/p>\n<p><\/p>\n<p>I&#8217;m currently trying to do&nbsp;some&nbsp;simple simulations&nbsp;in CHEMKIN pro 19.0 with the 1-D plug flow reactor model, and my goal is to learn about the reactant consumption and the detailed kinetic pathways. The pre-processing step is successful, however, the calculation keeps failing. As I look at the output file it says &#8216;A floating point exception has occurred&#8217; and the CKRUN_ERROR file says &#8216;exit_status=12&#8217;. Based on my understanding, the floating point exception is caused by 0 appearing at the denominator, but I really&nbsp;don&#8217;t know why this would happen in CHEMKIN since I have never seen this before. I was wondering if it is the problem with the chemical mechanism because it is a big one compared with others that I used before. Another weird thing is I have no problem at all running this chemical mechanism with the steady 0-D PSR reactor model, while the same error pops up if the PSR model is transient.<\/p>\n<p><\/p>\n<p>I&#8217;m really grateful if anyone could help me with this issue. Thanks a lot!<\/p>\n","protected":false},"template":"","class_list":["post-40461","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["12641"],"_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"],"_btv_view_count":["864"],"_bbp_subscription":["246930"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["40461"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","158743","172644"],"_bbp_voice_count":["3"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["104541"],"_bbp_last_active_id":["104541"],"_bbp_last_active_time":["2020-02-06 15:00:21"]},"test":"juniorbeibei"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/40461","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\/40461\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=40461"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}