{"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":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I have a 3D model that has a half dome with two holes through the thickness. 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