


{"id":425563,"date":"2025-03-13T13:52:55","date_gmt":"2025-03-13T13:52:55","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/pore-pressure-analysis-with-cpt215-elements-porous-elasticity-and-pm\/"},"modified":"2025-03-13T17:23:34","modified_gmt":"2025-03-13T17:23:34","slug":"pore-pressure-analysis-with-cpt215-elements-porous-elasticity-and-pm","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/pore-pressure-analysis-with-cpt215-elements-porous-elasticity-and-pm\/","title":{"rendered":"Pore Pressure analysis with CPT215 elements, Porous Elasticity and PM"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;&lt;p&gt;I have a 3D model that has a half dome with two holes through the thickness. The hole faces have pressure loads applied, and there is a small pressure difference to induce fluid flow.&lt;\/p&gt;&lt;p&gt;&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/13-03-2025-1741886508-mceclip0.png\" \/>&lt;\/p&gt;&lt;p&gt;&lt;\/p&gt;&lt;p&gt;It is meshed with linear hex elements.&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/13-03-2025-1741872541-mceclip4.png\" \/>&lt;\/p&gt;&lt;p&gt;A command object has set the element type to CPT215 and set keyopt(12)=1 to enable the pressure DOF and issued the TB,PM command to set the permeability of the liquid phase.&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/13-03-2025-1741871565-mceclip2.png\" \/>&lt;\/p&gt;&lt;p&gt;The material is Porous Elasticity.&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/13-03-2025-1741871729-mceclip1.png\" \/>&lt;\/p&gt;&lt;p&gt;Analysis settings has Large Deflection on. It solves and I can see that fluid flow is being computed in the solver output.&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/13-03-2025-1741871994-mceclip2.png\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/13-03-2025-1741886596-mceclip0.png\" \/>&lt;\/p&gt;&lt;p&gt;&lt;\/p&gt;&lt;p&gt;I would like to output the fluid flow through the body and plot the pore pressure in the body.&nbsp; Looking through the worksheet of the available solution quantities, I see an expression for PRES a nodal pressure, but I don&#8217;t believe that is the Pore Pressure.&nbsp; Please advise how I can obtain the total fluid flow and pore pressure contour.&lt;\/p&gt;&lt;\/p&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-425563","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27791"],"_bbp_topic_id":["425563"],"_bbp_subscription":["191063","20905","240"],"_bbp_author_ip":["8.9.83.120"],"_bbp_last_reply_id":["426498"],"_bbp_last_active_id":["426498"],"_bbp_last_active_time":["2025-03-21 21:14:05"],"_bbp_reply_count":["9"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["3"],"_bbp_engagement":["191063","20905","240"],"_btv_view_count":["340"],"_bbp_topic_status":["unanswered"],"_edit_last":["191063"],"_bbp_revision_log":["a:2:{i:425600;a:2:{s:6:\"author\";i:191063;s:6:\"reason\";s:0:\"\";}i:425601;a:2:{s:6:\"author\";i:191063;s:6:\"reason\";s:0:\"\";}}"]},"test":"peter-newman"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/425563","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":2,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/425563\/revisions"}],"predecessor-version":[{"id":425601,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/425563\/revisions\/425601"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=425563"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}