{"id":396778,"date":"2024-12-09T11:47:58","date_gmt":"2024-12-09T11:47:58","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/396778\/"},"modified":"2024-12-09T11:47:58","modified_gmt":"2024-12-09T11:47:58","slug":"396778","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/396778\/","title":{"rendered":"Reply To: Setting the Courant Number"},"content":{"rendered":"<p>&lt;p&gt;I tend to estimate a likely highest speed, work out how long that takes to cross a cell and divide that number by 10. That&#8217;s my starting time step. I then adjust (carefully) from there. It&#8217;s&nbsp; fairly rough rule of thumb we&#8217;ve been using for over two decades and usually works.&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-396778","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=\"I tend to estimate a likely highest speed, work out how long that takes to cross a cell and divide that number by 10. That&#039;s my starting time step. I then adjust (carefully) from there. It&#039;s fairly rough rule of thumb we&#039;ve been using for over two decades and usually works.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/396778\/\" \/>\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: Setting the Courant Number | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"I tend to estimate a likely highest speed, work out how long that takes to cross a cell and divide that number by 10. That&#039;s my starting time step. I then adjust (carefully) from there. It&#039;s fairly rough rule of thumb we&#039;ve been using for over two decades and usually works.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/396778\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-12-09T11:47:58+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-12-09T11:47:58+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Setting the Courant Number | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"I tend to estimate a likely highest speed, work out how long that takes to cross a cell and divide that number by 10. That&#039;s my starting time step. I then adjust (carefully) from there. 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That's my starting time step. I then adjust (carefully) from there. 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