{"id":456283,"date":"2026-04-11T09:55:05","date_gmt":"2026-04-11T09:55:05","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-set-udf-variables-as-input-and-output-parameters\/"},"modified":"2026-04-11T09:55:05","modified_gmt":"2026-04-11T09:55:05","slug":"how-to-set-udf-variables-as-input-and-output-parameters","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-set-udf-variables-as-input-and-output-parameters\/","title":{"rendered":"How to Set UDF Variables as Input and Output Parameters"},"content":{"rendered":"<p>&lt;p&gt;Hi\uff0ceveryone!&lt;\/p&gt;&lt;p&gt;I want to study <strong>input and output variables<\/strong> that are defined in Fluent UDF code. Since there are hundreds of operating conditions to be studied, I want to use <strong>Workbench&#8217;s parametric analysis<\/strong> feature for batch calculations. However, how can I set the variables in the UDF as input parameters and output parameters?&lt;\/p&gt;&lt;p&gt;Thank you very much for your time and help!&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-456283","topic","type-topic","status-publish","hentry","topic-tag-fluent","topic-tag-parametric-analysis","topic-tag-udf","topic-tag-workbench"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["291848"],"_bbp_topic_id":["456283"],"_bbp_subscription":["526202","199"],"_bbp_author_ip":["151.242.36.4"],"_bbp_last_reply_id":["456329"],"_bbp_last_active_id":["456329"],"_bbp_last_active_time":["2026-04-13 08:30:45"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["526202","199"],"_btv_view_count":["26"],"_bbp_topic_status":["unanswered"]},"test":"james411projectgmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/456283","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\/456283\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=456283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}