{"id":397465,"date":"2024-12-13T19:07:21","date_gmt":"2024-12-13T19:07:21","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/discrepancy-with-cese-solver\/"},"modified":"2024-12-13T19:07:21","modified_gmt":"2024-12-13T19:07:21","slug":"discrepancy-with-cese-solver","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/discrepancy-with-cese-solver\/","title":{"rendered":"Discrepancy with CESE solver"},"content":{"rendered":"<p>&lt;p class=&#8221;MsoNormal&#8221;&gt;We are solving sudden compressed gas expansion problem in an open atmosphere using CESE solver and plotting pressure along the distance from the tank centre in axial and perpendicular directions. It is observed that results with CESE solver are significantly different than ANSYS Fluent solver as shown below. Starting shock and rarefaction wave is not resolved in CESE solver compared with Fluent. Could you please help us to resolve this difference in results?&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/12\/13-12-2024-1734116726-CESE_vs_Fluent.png\" alt=\"\" width=\"1364\" height=\"754\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-397465","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=\"We are solving sudden compressed gas expansion problem in an open atmosphere using CESE solver and plotting pressure along the distance from the tank centre in axial and perpendicular directions. It is observed that results with CESE solver are significantly different than ANSYS Fluent solver as shown below. Starting shock and rarefaction wave is\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/discrepancy-with-cese-solver\/\" \/>\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=\"Discrepancy with CESE solver | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"We are solving sudden compressed gas expansion problem in an open atmosphere using CESE solver and plotting pressure along the distance from the tank centre in axial and perpendicular directions. It is observed that results with CESE solver are significantly different than ANSYS Fluent solver as shown below. Starting shock and rarefaction wave is\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/discrepancy-with-cese-solver\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-12-13T19:07:21+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-12-13T19:07:21+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Discrepancy with CESE solver | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"We are solving sudden compressed gas expansion problem in an open atmosphere using CESE solver and plotting pressure along the distance from the tank centre in axial and perpendicular directions. It is observed that results with CESE solver are significantly different than ANSYS Fluent solver as shown below. Starting shock and rarefaction wave is\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/discrepancy-with-cese-solver\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/discrepancy-with-cese-solver\\\/#listItem\",\"name\":\"Discrepancy with CESE solver\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/discrepancy-with-cese-solver\\\/#listItem\",\"position\":3,\"name\":\"Discrepancy with CESE solver\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/discrepancy-with-cese-solver\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/discrepancy-with-cese-solver\\\/\",\"name\":\"Discrepancy with CESE solver | Ansys Learning Forum\",\"description\":\"We are solving sudden compressed gas expansion problem in an open atmosphere using CESE solver and plotting pressure along the distance from the tank centre in axial and perpendicular directions. 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