{"id":161868,"date":"2023-01-25T07:17:11","date_gmt":"2023-01-25T07:17:11","guid":{"rendered":"\/knowledge\/forums\/topic\/i-am-running-an-electrochemistry-simulation-in-fluent-how-can-i-access-the-electrochemistry-reaction-rates-with-udf\/"},"modified":"2023-07-31T12:36:03","modified_gmt":"2023-07-31T12:36:03","slug":"i-am-running-an-electrochemistry-simulation-in-fluent-how-can-i-access-the-electrochemistry-reaction-rates-with-udf","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/i-am-running-an-electrochemistry-simulation-in-fluent-how-can-i-access-the-electrochemistry-reaction-rates-with-udf\/","title":{"rendered":"I am running an electrochemistry simulation in Fluent.  How can I access the electrochemistry reaction rates with UDF?"},"content":{"rendered":"<p>You can use the following macros to get echem reaction rate: &#8212;&#8212;&#8212;&#8212;&#8212;&#8211; F_STORAGE_R(f, tf, SV_ECHEM_RX_0 + j): j is from 0 to  rm->n_reactions F_STORAGE_R(f, tf, SV_PHI_1_FARADAIC_FLUX): total current density on an echem reaction wall &#8212;&#8212;&#8212;&#8212;&#8212;&#8211; the unit of them is amps\/m2.<\/p>\n","protected":false},"template":"","class_list":["post-161868","topic","type-topic","status-publish","hentry","topic-tag-19-2","topic-tag-electrochemistry","topic-tag-fluent","topic-tag-fluid-dynamics","topic-tag-scripting-journaling-udf","topic-tag-species-reactions"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_forum_id":["27784"],"_bbp_author_ip":["23.56.168.180"],"_bbp_last_active_time":["1-24-2023  20:20:05"],"_btv_view_count":["5417"],"siebel_km_number":["2057311"],"product_version":["19.2"],"km_published_date":["2018-11-29T20:19:35.000Z"],"family":["Fluid Dynamics"],"application_name":["FLUENT"],"_bbp_likes_count":["1"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/161868","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/161868\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=161868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}