{"id":366211,"date":"2024-05-09T05:19:18","date_gmt":"2024-05-09T05:19:18","guid":{"rendered":"\/forum\/forums\/reply\/366211\/"},"modified":"2024-05-09T05:19:18","modified_gmt":"2024-05-09T05:19:18","slug":"366211","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/366211\/","title":{"rendered":"Reply To: Kinetic Mechanisms and Arrhenius Equation Parameters in ANSYS Fluent"},"content":{"rendered":"<p>&lt;p&gt;One&nbsp; more thing, what is the density formulation being used. By default it is incompressible ideal gas. Please change it to ideal gas formulation as your closed system pressure is also changing.&lt;\/p&gt;&lt;p&gt;Try using a smaller time step of 1e-8 sec &#8211; you can increase it later and share your observation&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-366211","reply","type-reply","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=\"One more thing, what is the density formulation being used. By default it is incompressible ideal gas. 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