{"id":458021,"date":"2026-05-12T13:36:32","date_gmt":"2026-05-12T13:36:32","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/define-phases-coupled-multiphase-and-species-model\/"},"modified":"2026-05-18T15:43:47","modified_gmt":"2026-05-18T15:43:47","slug":"define-phases-coupled-multiphase-and-species-model","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/define-phases-coupled-multiphase-and-species-model\/","title":{"rendered":"Define phases: Coupled Multiphase and Species Model"},"content":{"rendered":"<p>&lt;p&gt;Hello,&lt;\/p&gt;&lt;p&gt;I am modeling alkaline electrolyzer with eulerian-VOF and species models. Please let me know how I should define phases according to chemical reactions&lt;br&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/05\/12-05-2026-1778592563-mceclip0.png\" \/>&lt;br&gt;Is this correct? The primary phase is H2O(l) and OH-. The secondary phase is H2 and O2.&lt;br&gt;&lt;br&gt;But the problem is in defining electrochemical reactions in the species model. Here you can see I set the phase 1 as a mixture-template and in reactions I have only these two options.&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/05\/12-05-2026-1778592831-mceclip3.png\" width=\"442\" height=\"275\" \/>&nbsp; &nbsp; &nbsp; &nbsp; <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/05\/12-05-2026-1778592799-mceclip2.png\" width=\"350\" height=\"287\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Same in the case with phase 2 which is named as mixture-template1&lt;br&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/05\/12-05-2026-1778592920-mceclip4.png\" width=\"352\" height=\"213\" \/> &nbsp; &nbsp; <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/05\/12-05-2026-1778592943-mceclip5.png\" width=\"251\" height=\"275\" \/>&lt;br&gt;&lt;br&gt;Please let me know how should I define the phases so that I can set up the reactions according to the formula&lt;br&gt;&lt;br&gt;Regards,&lt;\/p&gt;&lt;p&gt;Muhammad Asim Sarwar&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-458021","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["458021"],"_bbp_subscription":["680821","199"],"_bbp_author_ip":["157.24.27.98"],"_bbp_last_reply_id":["458372"],"_bbp_last_active_id":["458372"],"_bbp_last_active_time":["2026-05-18 15:43:37"],"_bbp_reply_count":["7"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["680821","199"],"_btv_view_count":["110"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"]},"test":"muhammad-sarwarlut-fi"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/458021","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\/458021\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=458021"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}