{"id":404462,"date":"2025-01-10T16:03:50","date_gmt":"2025-01-10T16:03:50","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mixture-fraction-of-coal-oxy-combustion-fuel-coal-co2-oxidizer-o2co2\/"},"modified":"2025-01-10T16:03:50","modified_gmt":"2025-01-10T16:03:50","slug":"mixture-fraction-of-coal-oxy-combustion-fuel-coal-co2-oxidizer-o2co2","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mixture-fraction-of-coal-oxy-combustion-fuel-coal-co2-oxidizer-o2co2\/","title":{"rendered":"mixture fraction of coal oxy-combustion (fuel: coal +CO2; oxidizer O2+CO2)"},"content":{"rendered":"<p>&lt;p&gt;co-axial flow arrangement: Coal + CO2 and aO2+bCO2&lt;br&gt;DPM, species transport, 2-step reaction mechanism&lt;\/p&gt;&lt;p&gt;in the postprocessing, I used the local equivalent ratio to indicate the flame location, which&nbsp; coincides with the flame.&lt;\/p&gt;&lt;p&gt;the issue is that it doesn&#8217;t consider the diluted gas&#8217;s impact: CO2 could be involved in the reaction.&lt;\/p&gt;&lt;p&gt;I used bilger definition, as shown below. the issue here is I don&#8217;t know the volatile:CO2 ratio at the location I interested.&lt;\/p&gt;&lt;p&gt;Non-premixed model seems be able to do this job. but I use species transport model, not providing this option.&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/10-01-2025-1736524433-mceclip0.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-404462","topic","type-topic","status-publish","hentry","topic-tag-2d_dpm-1","topic-tag-coal-particle-combustion-1","topic-tag-non-premixed-combustion","topic-tag-species-transport-model"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["404462"],"_bbp_author_ip":["128.252.130.158"],"_bbp_last_reply_id":["419087"],"_bbp_last_active_id":["419087"],"_bbp_last_active_time":["2025-02-12 15:25:22"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["27819","14415"],"_btv_view_count":["265"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1736544317:180"],"_bbp_subscription":["14415"]},"test":"ll00023mix-wvu-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/404462","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\/404462\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=404462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}