{"id":364714,"date":"2024-04-29T14:22:01","date_gmt":"2024-04-29T14:22:01","guid":{"rendered":"\/forum\/forums\/reply\/364714\/"},"modified":"2024-04-29T14:22:01","modified_gmt":"2024-04-29T14:22:01","slug":"364714","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/364714\/","title":{"rendered":"Reply To: Diverging AMG Solver in Fluent2024 R1 but not in 2019 R2"},"content":{"rendered":"<p>&lt;p&gt;It looks that you have only wall surface reactions on the catalyst and there are no volumetric reactions. If this is true, please disable the stiff chemistry solver as the message suggested (use the default &#8220;direct source &#8211; No TCI&#8221; option).&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-364714","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=\"It looks that you have only wall surface reactions on the catalyst and there are no volumetric reactions. If this is true, please disable the stiff chemistry solver as the message suggested (use the default &quot;direct source - No TCI&quot; option).\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/364714\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Reply To: Diverging AMG Solver in Fluent2024 R1 but not in 2019 R2 | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"It looks that you have only wall surface reactions on the catalyst and there are no volumetric reactions. If this is true, please disable the stiff chemistry solver as the message suggested (use the default &quot;direct source - No TCI&quot; option).\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/364714\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-04-29T14:22:01+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-04-29T14:22:01+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Diverging AMG Solver in Fluent2024 R1 but not in 2019 R2 | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"It looks that you have only wall surface reactions on the catalyst and there are no volumetric reactions. 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If this is true, please disable the stiff chemistry solver as the message suggested (use the default \"direct source - No TCI\" option).","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/364714\/#breadcrumblist"},"datePublished":"2024-04-29T14:22:01+00:00","dateModified":"2024-04-29T14:22:01+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/forum\/#website","url":"https:\/\/innovationspace.ansys.com\/forum\/","name":"Ansys Learning Forum","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Learning Forum | Ansys Innovation Space","og:type":"article","og:title":"Reply To: Diverging AMG Solver in Fluent2024 R1 but not in 2019 R2 | Ansys Learning Forum","og:description":"It looks that you have only wall surface reactions on the catalyst and there are no volumetric reactions. If this is true, please disable the stiff chemistry solver as the message suggested (use the default &quot;direct source - No TCI&quot; option).","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/364714\/","article:published_time":"2024-04-29T14:22:01+00:00","article:modified_time":"2024-04-29T14:22:01+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Diverging AMG Solver in Fluent2024 R1 but not in 2019 R2 | Ansys Learning Forum","twitter:description":"It looks that you have only wall surface reactions on the catalyst and there are no volumetric reactions. 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