{"id":311574,"date":"2023-10-16T06:49:42","date_gmt":"2023-10-16T06:49:42","guid":{"rendered":"\/forum\/forums\/reply\/311574\/"},"modified":"2023-10-16T06:49:42","modified_gmt":"2023-10-16T06:49:42","slug":"311574","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/311574\/","title":{"rendered":"Reply To: Modelling in vacuum"},"content":{"rendered":"<p>&lt;p&gt;Hi,&lt;\/p&gt;&lt;p&gt;Vacuum is a space that is empty of matter.&nbsp; The mean free path of residual gases is longer than the size of the chamber or of the object under test. At such low pressure values the Knudsen number would be large making the continuum approach invalid. So theoretically it will not be possible to model vacuum in Fluent as this is based on a continuum approach.&lt;\/p&gt;&lt;p&gt;Thank you.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-311574","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=\"Hi,Vacuum is a space that is empty of matter. The mean free path of residual gases is longer than the size of the chamber or of the object under test. At such low pressure values the Knudsen number would be large making the continuum approach invalid. So theoretically it will not be possible to model\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/311574\/\" \/>\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: Modelling in vacuum | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hi,Vacuum is a space that is empty of matter. The mean free path of residual gases is longer than the size of the chamber or of the object under test. At such low pressure values the Knudsen number would be large making the continuum approach invalid. So theoretically it will not be possible to model\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/311574\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-10-16T06:49:42+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-10-16T06:49:42+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Modelling in vacuum | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hi,Vacuum is a space that is empty of matter. The mean free path of residual gases is longer than the size of the chamber or of the object under test. At such low pressure values the Knudsen number would be large making the continuum approach invalid. 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At such low pressure values the Knudsen number would be large making the continuum approach invalid. So theoretically it will not be possible to model","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/311574\/","article:published_time":"2023-10-16T06:49:42+00:00","article:modified_time":"2023-10-16T06:49:42+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Modelling in vacuum | Ansys Learning Forum","twitter:description":"Hi,Vacuum is a space that is empty of matter. The mean free path of residual gases is longer than the size of the chamber or of the object under test. At such low pressure values the Knudsen number would be large making the continuum approach invalid. 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