{"id":163590,"date":"2021-11-01T02:09:36","date_gmt":"2021-11-01T02:09:36","guid":{"rendered":"\/forum\/forums\/topic\/properly-establihsing-boundary-conditions\/"},"modified":"2021-11-01T12:13:26","modified_gmt":"2021-11-01T12:13:26","slug":"properly-establihsing-boundary-conditions","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/properly-establihsing-boundary-conditions\/","title":{"rendered":"Properly establihsing Boundary Conditions"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hello! I am trying to model a simple box with 2 inlets and 1 outlet. The fluid is air. The system is driven by the one outlet pushing air OUT of the system, and the 2 inlets pulling air in from the atmosphere. I am analyzing the system under transient conditions. <\/p>\n<p><\/p>\n<\/p>\n<p>How would I go about modeling the boundary conditions for this?<\/p>\n<p>I currently have the outlet as &quot;mass-flow-outlet&quot; and the 2 inlets as &quot;inlet-vent&quot;. Multiple phases are turned off. Dynamic mesh with implicit updates are turned on. <\/p>\n<p>I keep getting the point float error although my model has good enough skewness and orthogonal quality. Am I having a mesh issue? Or is it an issue with initial conditions?<\/p>\n","protected":false},"template":"","class_list":["post-163590","topic","type-topic","status-closed","hentry","topic-tag-ansys-fluent","topic-tag-boundary-conditions","topic-tag-cfd","topic-tag-meshing","topic-tag-modal-analysis"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello! I am trying to model a simple box with 2 inlets and 1 outlet. The fluid is air. 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