{"id":286970,"date":"2023-06-03T11:22:09","date_gmt":"2023-06-03T11:22:09","guid":{"rendered":"\/forum\/forums\/topic\/error-in-defining-another-input-parameter-from-other\/"},"modified":"2023-06-06T19:26:24","modified_gmt":"2023-06-06T19:26:24","slug":"error-in-defining-another-input-parameter-from-other","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/error-in-defining-another-input-parameter-from-other\/","title":{"rendered":"Error in Defining Another Input Parameter from Other"},"content":{"rendered":"

I have two input parameters on my parameter set panel that I want to relate one to the other as shown “Expression” tab in the figure below.<\/p>\n

\"\"<\/p>\n

My analysis will be conducted in 2D. I want these two inlet velocities to be related by equal flow rate equation, which is “Q = v A”<\/em><\/strong>, since the density is contant so I omitted “rho”. Since the cross-sectional area is supposed to be rectangular\/square, my final expression would be “v_in(rev) = v_in(for) w2 \/ w1”<\/em><\/strong>. When I try to make the reverse flow inlet velocity driven from the forward inlet velocity, I encounter such an error shown. How can I solve this, if there is no technical limitation?<\/p>\n","protected":false},"template":"","class_list":["post-286970","topic","type-topic","status-closed","hentry","topic-tag-Derivedparameters-1","topic-tag-inputparameter-1","topic-tag-input-parameter-fluent-1","topic-tag-parameter-set"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["282224","199"],"_bbp_author_ip":["168.143.243.14"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["819"],"_bbp_status":["publish"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["286970"],"_bbp_forum_id":["275024"],"_bbp_engagement":["199","282224"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["287453"],"_bbp_last_active_id":["287453"],"_bbp_last_active_time":["2023-06-06 19:25:38"]},"test":"50086ffc62429c285ae1818615552b07babc833b"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/286970","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\/286970\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=286970"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}