{"id":286704,"date":"2023-06-01T11:01:58","date_gmt":"2023-06-01T11:01:58","guid":{"rendered":"\/forum\/forums\/topic\/flame-comparison-1-bar-10-bar-ch4-combustion\/"},"modified":"2023-06-01T11:01:58","modified_gmt":"2023-06-01T11:01:58","slug":"flame-comparison-1-bar-10-bar-ch4-combustion","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/flame-comparison-1-bar-10-bar-ch4-combustion\/","title":{"rendered":"Flame comparison 1 bar &amp; 10 bar CH4 combustion"},"content":{"rendered":"<p>Hello im simulating methane combustion partially premixed (chemical equilibrium). Im analyzing the effect of diffrent pressures. One simulation is computed with 1 bar and the other one with 10 bar (mass fractions are the same). Boundary conditions are the same in bouth simulations.<br \/>According the literature the flame should be shorter under higher pressure, because the flame spread is accelarted. <br \/>Im getting the oposite&#8230;.the flame under pressure is longer than the one under atmosperic pressure.<br \/>Why? ans idea?<br \/><img decoding=\"async\" title=\"10 bar\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/01-06-2023-1685617105-mceclip1.png\">Simulation (10 bar)<img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/01-06-2023-1685617241-mceclip2.png\" width=\"348\" height=\"403\">Simulation (1 bar)<\/p>\n<p>Heat release rate is plotted.<\/p>\n<p>Thanks<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-286704","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["267360","199"],"_bbp_author_ip":["23.47.145.29"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["225"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["286704"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","267360"],"_bbp_voice_count":["2"],"_bbp_reply_count":["10"],"_bbp_last_reply_id":["287071"],"_bbp_last_active_id":["287071"],"_bbp_last_active_time":["2023-06-05 08:20:41"]},"test":"walthlukstudents-zhaw-ch"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/286704","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\/286704\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=286704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}