{"id":389884,"date":"2024-10-16T01:12:12","date_gmt":"2024-10-16T01:12:12","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/help-how-to-link-the-primary-and-auxiliary-fluid-cell-in-non-equibrilium-model\/"},"modified":"2024-10-16T01:12:12","modified_gmt":"2024-10-16T01:12:12","slug":"help-how-to-link-the-primary-and-auxiliary-fluid-cell-in-non-equibrilium-model","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/help-how-to-link-the-primary-and-auxiliary-fluid-cell-in-non-equibrilium-model\/","title":{"rendered":"Help: How to link the primary and auxiliary fluid cell in non-equibrilium model?"},"content":{"rendered":"<p>&lt;p&gt;Hello all,&lt;\/p&gt;&lt;p&gt;I am writing UDF to modify the energy source term (changing the temperature power index from 1 to 4) of non-equibrilium model in porous media.&lt;\/p&gt;&lt;p&gt;&nbsp;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/16-10-2024-1729039005-Dual Energy Equation.png\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;The problems are how to link the primary fluid cell and the corresponding auxiliary solid cell, and how to access the auxiliary solid temperature in primary fluid zone when I wirte the UDF to modify the energy source in fluid zone.&nbsp;&lt;\/p&gt;&lt;p&gt;I checked the file &#8220;storage.h&#8221;. and found the Svar for the dual cell as following. But these Svar index do not specify the temperature, which means the C_STORAGE_R can not be used to access the temperature. Does anyone encounter the same problem? Many thanks.&lt;\/p&gt;&lt;p&gt;&#8221;&#8221;'&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;span style=&#8221;font-size: 10pt;&#8221;&gt; SV_DC_SOURCE, \/*Dual Cell Heat Exchanger source*\/&lt;\/span&gt;&lt;br&gt;&lt;span style=&#8221;font-size: 10pt;&#8221;&gt;&nbsp; SV_DC_NBR_ID,\/*Dual Cell Hxc connectivity info*\/&lt;\/span&gt;&lt;br&gt;&lt;span style=&#8221;font-size: 10pt;&#8221;&gt;&nbsp; SV_DC_NBR_DATA,\/*Dual Cell Hxc nbr svar value*\/&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span style=&#8221;font-size: 10pt;&#8221;&gt;&nbsp; SV_DC_NBR,\/*Dual Cell id (local)*\/&lt;\/span&gt;&lt;br&gt;&lt;span style=&#8221;font-size: 10pt;&#8221;&gt;&nbsp; SV_DC_FLUID_POR,\/*Dual Cell Zone porosity profile*\/&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&#8221;&lt;\/p&gt;&lt;p&gt;Best regards,&lt;\/p&gt;&lt;p&gt;Fan&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-389884","topic","type-topic","status-publish","hentry","topic-tag-dual-energy-equations","topic-tag-energy-source-term-2","topic-tag-localthermalnon-equilibrium-1"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello all,I am writing UDF to modify the energy source term (changing the temperature power index from 1 to 4) of non-equibrilium model in porous media. 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