{"id":433711,"date":"2025-06-10T10:20:10","date_gmt":"2025-06-10T10:20:10","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fluent-mesh-penetration-warning\/"},"modified":"2025-06-16T02:34:25","modified_gmt":"2025-06-16T02:34:25","slug":"fluent-mesh-penetration-warning","status":"answered","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fluent-mesh-penetration-warning\/","title":{"rendered":"Fluent mesh penetration warning"},"content":{"rendered":"<p>&lt;p class=&#8221;MsoNormal&#8221; style=&#8221;text-align: justify; text-justify: inter-ideograph; mso-layout-grid-align: none;&#8221;&gt;Hello, everyone,&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221; style=&#8221;text-align: justify; text-justify: inter-ideograph; mso-layout-grid-align: none;&#8221;&gt;&lt;span style=&#8221;mso-spacerun: yes;&#8221;&gt;&nbsp;&nbsp;&nbsp; &lt;\/span&gt;When I clicked the &ldquo;initialize&rdquo; option, the warning &ldquo;Info: Interface zones penetrate each other. This could adversely affect your solution&rdquo; appeared.&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221; style=&#8221;text-align: justify; text-justify: inter-ideograph; mso-layout-grid-align: none;&#8221;&gt;&lt;span style=&#8221;mso-spacerun: yes;&#8221;&gt;&nbsp;&nbsp;&nbsp; &lt;\/span&gt;As is shown in figure 1, whole fluid domain consists of two parts: fluid domain 1 and domain 2, interface between them consists of surface 1(belong to domain 1) and surface 2(belong to domain 2).&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221; style=&#8221;text-align: justify; text-justify: inter-ideograph; mso-layout-grid-align: none;&#8221;&gt;&lt;span style=&#8221;mso-spacerun: yes;&#8221;&gt;&nbsp;&nbsp;&nbsp; &lt;\/span&gt;As is shown in figure 2, there two versions of fluid domain 1: fluid domain 1-v1 and fluid domain 1-v2. And in figure 1, the fluid domain 1 is v1.&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221; style=&#8221;text-align: justify; text-justify: inter-ideograph; mso-layout-grid-align: none;&#8221;&gt;&lt;span style=&#8221;mso-spacerun: yes;&#8221;&gt;&nbsp;&nbsp; &lt;\/span&gt;&lt;span style=&#8221;mso-spacerun: yes;&#8221;&gt;&nbsp;&lt;\/span&gt;The problem is: when I put fluid domain 1-v1 in whole fluid domain, there was no warning message, shown in figure 3, however, once I chose the fluid domain 1-v2 as the fluid domain 1, warnings appeared, shown in figure 4.&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221; style=&#8221;text-align: justify; text-justify: inter-ideograph;&#8221;&gt;&lt;span style=&#8221;mso-spacerun: yes;&#8221;&gt;&nbsp;&nbsp;&nbsp; &lt;\/span&gt;I did the analysis of interference between parts in Creo, there is no interference in this model.&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221; style=&#8221;text-align: justify; text-justify: inter-ideograph;&#8221;&gt;&lt;span style=&#8221;mso-spacerun: yes;&#8221;&gt;&nbsp;&nbsp;&nbsp; &lt;\/span&gt;Could anyone tell me the reason behind this? Thanks!&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221; style=&#8221;text-align: justify; text-justify: inter-ideograph;&#8221;&gt;Regards,&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221; style=&#8221;text-align: justify; text-justify: inter-ideograph;&#8221;&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/06\/10-06-2025-1749550705-mceclip0.png\" \/>&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;<strong>Figure 1 whole fluid domain<\/strong>&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;<strong><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/06\/10-06-2025-1749550725-mceclip1.png\" \/><\/strong>&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;&lt;strong style=&#8221;mso-bidi-font-weight: normal;&#8221;&gt;&lt;span style=&#8221;mso-no-proof: yes;&#8221;&gt; &lt;\/span&gt;<\/strong>&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;<strong>Figure 2 Modifications on fluid domain 1<\/strong>&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;<strong><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/06\/10-06-2025-1749550738-mceclip2.png\" \/><\/strong>&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;<strong>Figure 3 <\/strong>&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;<strong><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/06\/10-06-2025-1749550749-mceclip3.png\" \/><\/strong>&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;<strong>Figure 4<\/strong>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-433711","topic","type-topic","status-answered","hentry","topic-tag-fluent","topic-tag-mesh"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["433711"],"_bbp_subscription":["184661","13659"],"_bbp_author_ip":["67.198.129.66"],"_bbp_last_reply_id":["434155"],"_bbp_last_active_id":["434155"],"_bbp_last_active_time":["2025-06-16 02:33:15"],"_bbp_reply_count":["2"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["184661","13659"],"_btv_view_count":["123"],"_bbp_topic_status":["answered"]},"test":"excited"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/433711","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":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/433711\/revisions"}],"predecessor-version":[{"id":434156,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/433711\/revisions\/434156"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=433711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}