{"id":404148,"date":"2025-01-08T17:21:58","date_gmt":"2025-01-08T17:21:58","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/meshing-fluid-domain\/"},"modified":"2025-01-08T17:21:58","modified_gmt":"2025-01-08T17:21:58","slug":"meshing-fluid-domain","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/meshing-fluid-domain\/","title":{"rendered":"Meshing fluid domain"},"content":{"rendered":"<p>&lt;p&gt;I am creating a fluid domain to run a droplet simulation. The domain is rectangular, with the bottom surface having rectagular shaped channels:&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/08-01-2025-1736356829-mceclip1.png\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;The general idea is to run droplet simulations where I alter the dimensions of these channels to analyze how it affects droplet dynamics. When I mesh the domain, I get a relatively uniform hex mesh using the multizone method and adjusting mesh sizing:&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/08-01-2025-1736356803-mceclip0.png\" \/><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/08-01-2025-1736356881-mceclip3.png\" \/>&lt;\/p&gt;&lt;p&gt;While this method works overall, ideally I would like to create a more uniform mesh, particularly fixing the meshing on the top\/bottom surfaces as they look like this: <img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/08-01-2025-1736356868-mceclip2.png\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Any thoughts on how this could be done?&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-404148","topic","type-topic","status-publish","hentry","topic-tag-droplet","topic-tag-fluiddomain","topic-tag-meshing"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I am creating a fluid domain to run a droplet simulation. 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