{"id":390736,"date":"2024-10-21T21:58:51","date_gmt":"2024-10-21T21:58:51","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cfd-simulation-reverse-flow-issue-at-outlet2\/"},"modified":"2024-10-21T21:58:51","modified_gmt":"2024-10-21T21:58:51","slug":"cfd-simulation-reverse-flow-issue-at-outlet2","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cfd-simulation-reverse-flow-issue-at-outlet2\/","title":{"rendered":"CFD Simulation: Reverse Flow Issue at Outlet2"},"content":{"rendered":"

<p>I’m currently running a CFD simulation in ANSYS Fluent with the k-epsilon turbulence model for a steady-state solution. My model geometry consists of one inlet surface and two outlet surfaces. I’ve set up boundary layers with 5 and 7 layers, respectively. However, during the simulation, I keep encountering a “reverse flow” warning at Outlet2.<\/p><p>Even though the model eventually reaches stability, this reverse flow issue significantly delays my computational time. I run the LES model once the steady-state solution is achieved. This warning “reverse flow” still exists<\/p><p>My questions are:<\/p><\/p>\n

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  1. Does the reverse flow at Outlet2 matter, especially in terms of solution accuracy or physical relevance?<\/li>\n
  2. How can I address or minimize the reverse flow issue to reduce computational delays?<\/li>\n<\/ol>\n

    <p>Any suggestions or advice would be greatly appreciated!<\/p><p>Thanks!<\/p><p><br><br><br><\/p><\/p>\n","protected":false},"template":"","class_list":["post-390736","topic","type-topic","status-publish","hentry","topic-tag-cfd","topic-tag-fluent","topic-tag-mesh"],"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\n\t\t\n\t\t\n\t\t