{"id":318645,"date":"2023-11-20T16:58:08","date_gmt":"2023-11-20T16:58:08","guid":{"rendered":"\/forum\/forums\/reply\/318645\/"},"modified":"2023-11-20T16:58:08","modified_gmt":"2023-11-20T16:58:08","slug":"318645","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/318645\/","title":{"rendered":"Reply To: Periodic boundary condition for droplet evaporation"},"content":{"rendered":"<p>&lt;p&gt;If flow is travelling left to right (for example) the gas composition and liquid mass will change from right to left: mass per phase is not equal on both boundaries. From memory there are some multiphase specific notes in the Periodic boundary section(s) of the User&#8217;s Guide.&nbsp;&lt;\/p&gt;&lt;p&gt;Operating density needs to be reviewed if gravity is on when you have a vertical pressure boundary: how are you accounting for hydrostatic effects? Otherwise, the settings aren&#8217;t wrong &#8211; note depending on what you&#8217;re trying to do you may find alternative settings are &#8220;better&#8221;. That&#8217;s part of the skill with multiphase models, what is important, and what can we ignore?&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-318645","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=\"If flow is travelling left to right (for example) the gas composition and liquid mass will change from right to left: mass per phase is not equal on both boundaries. From memory there are some multiphase specific notes in the Periodic boundary section(s) of the User&#039;s Guide. Operating density needs to be reviewed if gravity is\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/318645\/\" \/>\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: Periodic boundary condition for droplet evaporation | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"If flow is travelling left to right (for example) the gas composition and liquid mass will change from right to left: mass per phase is not equal on both boundaries. From memory there are some multiphase specific notes in the Periodic boundary section(s) of the User&#039;s Guide. 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