{"id":291964,"date":"2023-07-06T21:11:10","date_gmt":"2023-07-06T21:11:10","guid":{"rendered":"\/forum\/forums\/topic\/ansys-fluent-13\/"},"modified":"2023-07-06T21:18:32","modified_gmt":"2023-07-06T21:18:32","slug":"ansys-fluent-13","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-fluent-13\/","title":{"rendered":"Ansys Fluent"},"content":{"rendered":"<p>I am trying to simulate CO2 flow through a pipe with a diameter decrease (valve). I have Pressure inlet(1000 psi) and pressure outlet (200 psi) boundary conditions.&nbsp; Co2 density given via real-ga peng Robinson.&nbsp;<\/p>\n<p>Energy is on;<\/p>\n<p>Single phase;<\/p>\n<p>viscous model &#8211; k-epsilon, enhanced wall treatment.<\/p>\n<p>However, when I lower the input pressure my mo<span style=\"font-size: 14pt\">del works fine:<\/span><\/p>\n<p><span style=\"font-size: 14pt\"><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/07\/06-07-2023-1688677805-xz2.png\"><img loading=\"lazy\" decoding=\"async\" style=\"font-size: 18.6667px;float: left\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/07\/06-07-2023-1688677805-xz2.png\" alt=\"\" width=\"898\" height=\"306\"><\/a><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/07\/06-07-2023-1688677579-xz1png.png\"><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/07\/06-07-2023-1688677579-xz1png.png\" alt=\"\" width=\"899\" height=\"321\"><\/a><\/p>\n<p>(on the figure I have a scenario when my inlet set to 300 psi and my Outlet set to 200). It works fine and I can see the temperature change.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-291964","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I am trying to simulate CO2 flow through a pipe with a diameter decrease (valve). I have Pressure inlet(1000 psi) and pressure outlet (200 psi) boundary conditions. Co2 density given via real-ga peng Robinson. 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