{"id":371129,"date":"2024-07-09T13:40:14","date_gmt":"2024-07-09T13:40:14","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/371129\/"},"modified":"2024-07-09T13:40:14","modified_gmt":"2024-07-09T13:40:14","slug":"371129","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/371129\/","title":{"rendered":"Reply To: High Mach Number, Compressible Flow 3D Simulation around a Finned Projectile"},"content":{"rendered":"<p>&lt;p&gt;Hello Ethan,&nbsp;&lt;\/p&gt;&lt;p&gt;let me provide some suggestions to your questions. I am assuming that you are using Fluent&#8217;s Watertight Geometry Workflow.&lt;\/p&gt;&lt;p&gt;1) Rather than using a separate box for the wake of the projectile, I would suggest you use a Body of Influence (BOI). A BOI is a local mesh setting that allows you to control the mesh size locally. The BOI option is set from the Add Local Sizing task enables the generation of a local body sizing that can be smoother than what might be possible by using multiple bodies with shared topology options activated in SpaceClaim or the Form New Part option in Design Modeler. When using a Body of Influence, it&#8217;s important to note that the body used is not divided into mesh elements but serves only as a reference for controlling mesh size.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-371129","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=\"Hello Ethan, let me provide some suggestions to your questions. I am assuming that you are using Fluent&#039;s Watertight Geometry Workflow.1) Rather than using a separate box for the wake of the projectile, I would suggest you use a Body of Influence (BOI). A BOI is a local mesh setting that allows you to control the\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/371129\/\" \/>\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: High Mach Number, Compressible Flow 3D Simulation around a Finned Projectile | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hello Ethan, let me provide some suggestions to your questions. I am assuming that you are using Fluent&#039;s Watertight Geometry Workflow.1) Rather than using a separate box for the wake of the projectile, I would suggest you use a Body of Influence (BOI). 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A BOI is a local mesh setting that allows you to control the\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/371129\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/371129\\\/#listItem\",\"name\":\"Reply To: High Mach Number, Compressible Flow 3D Simulation around a Finned Projectile\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/371129\\\/#listItem\",\"position\":2,\"name\":\"Reply To: High Mach Number, Compressible Flow 3D Simulation around a Finned Projectile\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/371129\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/371129\\\/\",\"name\":\"Reply To: High Mach Number, Compressible Flow 3D Simulation around a Finned Projectile | Ansys Learning Forum\",\"description\":\"Hello Ethan, let me provide some suggestions to your questions. 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