{"id":408943,"date":"2025-02-08T23:48:46","date_gmt":"2025-02-08T23:48:46","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cell-zones-with-interior-boundary-condition\/"},"modified":"2025-02-08T23:48:46","modified_gmt":"2025-02-08T23:48:46","slug":"cell-zones-with-interior-boundary-condition","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cell-zones-with-interior-boundary-condition\/","title":{"rendered":"Cell Zones with interior boundary condition"},"content":{"rendered":"

<p>Hi everyone, <\/p><p>I am working on a project that is interested in the pressure changes in a fuel injection rail as injectors open and close. I have four injectors in parallel with a wall on the left side of the figure and an inlet boundary condition on the right of the figure. <\/p><p>  <\/a><\/p><p>I am working on a project that has an inlet boundary condition, followed by a injector inlet boundary condition and an outlet boundary condition. The injector inlet boundary condition is a UDF that says that the boundary condition is a door that opens and closes at the frequency the injector operates at. I am trying to get the 2 different cell zones to allow mass to transport between each other between this injector condition but I cannot get it to work. I know its a mesh interface problem. The two meshes are the same size so thats not a problem with a non conformal mesh. I want to “couple” these two cell zones but how do i do that. I am also working with ansys fluent student if that makes a difference. I suspect there might be limited capability in it. <\/p><\/p>\n","protected":false},"template":"","class_list":["post-408943","topic","type-topic","status-publish","hentry","topic-tag-fluent-cfd-ansys-1"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t