{"id":441282,"date":"2025-09-11T12:50:39","date_gmt":"2025-09-11T12:50:39","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/classic-icepak-clarifications-on-boundary-condition\/"},"modified":"2025-09-11T12:50:39","modified_gmt":"2025-09-11T12:50:39","slug":"classic-icepak-clarifications-on-boundary-condition","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/classic-icepak-clarifications-on-boundary-condition\/","title":{"rendered":"Classic Icepak &#8211; clarifications on Boundary condition"},"content":{"rendered":"<p>&lt;p&gt;I&#8217;m performing Fluid cooling simulation for elecronic part. I m using Classic Icepak tool. I would like your guidance on a few technical points regarding my simulation setup:&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;1. Defining two fluids:&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Air inside the cabinet&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Water in the cooling channel of the design&lt;\/p&gt;&lt;p&gt;Could you please guide me on how to define and simulate these two different fluids in Icepak?&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;2. Cabinet domain exclusion:&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;How can I deactivate or exclude the cabinet air region from the simulation if it is not required?&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;3. CAD import:&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Is it possible to directly import a .stp file into Classic Icepak? If yes, what is the correct workflow?&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;4. Boundary condition:&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;How do I correctly define a pressure outlet at 0 Pa in Classic Icepak?&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-441282","topic","type-topic","status-publish","hentry","topic-tag-ansys-icepak","topic-tag-icepak-thermal-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27793"],"_bbp_topic_id":["441282"],"_bbp_subscription":["594472","92143"],"_bbp_author_ip":["2401:4900:7b92:f7d6:a8dd:76ff:fe9b:96ee"],"_bbp_last_reply_id":["441408"],"_bbp_last_active_id":["441408"],"_bbp_last_active_time":["2025-09-15 06:58:07"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["594472","92143"],"_btv_view_count":["2552"],"_bbp_topic_status":["unanswered"]},"test":"ev23mtech15001iith-ac-in"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/441282","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\/441282\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=441282"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}