{"id":398071,"date":"2024-12-20T06:31:02","date_gmt":"2024-12-20T06:31:02","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/assistance-required-for-sst-k-omega-simulation-in-ansys-fluent\/"},"modified":"2024-12-20T06:31:02","modified_gmt":"2024-12-20T06:31:02","slug":"assistance-required-for-sst-k-omega-simulation-in-ansys-fluent","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/assistance-required-for-sst-k-omega-simulation-in-ansys-fluent\/","title":{"rendered":"Assistance Required for SST k-omega Simulation in ANSYS Fluent"},"content":{"rendered":"

<div class=”ps-post__body ps-js-post-body”><div class=”ps-post__content ps-js-activity-content ps-js-activity-content–25960″>Dear Sir,<br><br>I hope this email finds you well. My name is Bhagaban Jena, and I am a researcher at the Department of Applied Mechanics & Biomedical Engineering, IIT Madras. I am currently working on a simulation project where the air will flow through a gyroid cylindrical tube, using ANSYS Fluent.<br><br>While the k-epsilon model converges without issues, the SST k-omega model has not converged despite my efforts over the past six months. I have attached the geometry of the gyroid tube and the residual plot from my simulation for your review.<br><br>Here are some details of the steps I have taken so far to resolve the issue:<br><br>1.  Verified and refined the mesh quality.<br>2.  Adjusted various solver parameters, including relaxation factors.<br>3.  Tested different boundary conditions.<br>4.  Increased iteration limits and monitored residuals carefully.<br>5.  Maintain the Y+ also below 1<\/div><div class=”ps-post__content ps-js-activity-content ps-js-activity-content–25960″><br>Despite these attempts, I have not been able to achieve convergence. Given the importance of this simulation to my work, I would deeply appreciate your guidance or any suggestions on how to proceed.<br>If you need me, I will provide additional details about my setup, such as boundary conditions, initial conditions, and mesh details.<\/div><div class=”ps-post__content ps-js-activity-content ps-js-activity-content–25960″> <\/div><div class=”ps-post__content ps-js-activity-content ps-js-activity-content–25960″>Looking forward to your valuable suggestions. Thank you for your time and assistance.<br><br>Gyroid tube<br><br><\/div><div class=”ps-post__content ps-js-activity-content ps-js-activity-content–25960″> <\/div><div class=”ps-post__content ps-js-activity-content ps-js-activity-content–25960″><\/div><div class=”ps-post__attachments ps-stream-attachments ps-js-activity-attachments js-stream-attachments”><div class=”ps-post__attachment cstream-attachment photo-attachment”><div class=”ps-post__gallery ps-media-photos ps-media-grid ps-clearfix” data-ps-grid=”photos”><div class=”ps-media-grid-padding”><div class=”ps-media-grid-fitwidth”><\/div><\/div><\/a><\/div><\/div><\/div><\/div><div class=”ps-post__footer”><div class=”ps-post__actions stream-actions js-stream-actions action_inner_144618″ data-type=”stream-action”><div class=”ps-post__actions-inner action_inner_144618″><div class=”ps-post__action ps-post__action–views ps-post__action–views-act-id-25960″ data-stream-id=”25960″>                                       <\/div><div class=”ps-post__action ps-post__action–views ps-post__action–views-act-id-25960″ data-stream-id=”25960″>                                           Resudual plot of SST k-omega model<\/div><div class=”ps-post__action ps-post__action–views ps-post__action–views-act-id-25960″ data-stream-id=”25960″> <\/div><div class=”ps-post__action ps-post__action–views ps-post__action–views-act-id-25960″ data-stream-id=”25960″> <\/div><div class=”ps-post__action ps-post__action–views ps-post__action–views-act-id-25960″ data-stream-id=”25960″>Thanks & Best regards,<br>Bhagaban Jena, PhD Scholar<br>Department of Applied Mechanics & Biomedical Engineering<br>Indian Institute of Technology Madras<br>Chennai<\/div><\/div><\/div><div class=”ps-comments”><div id=”wall-cmt-25960″ class=”ps-comments__inner cstream-respond wall-cocs”><div class=”ps-comments__list comment-container ps-js-comment-container ps-js-comment-container–25960″ data-act-id=”25960″ data-post-id=”144618″ data-comments-open=”1″><div id=”comment-item-144619″ class=”ps-comment ps-comment-item cstream-comment stream-comment ps-js-comment-item” data-comment-id=”144619″ data-author=”2323″><div class=”ps-comment__body js-stream-content ps-js-comment-body”><div class=”ps-comment__content stream-comment-content ps-js-comment-content” data-type=”stream-comment-content”> <\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"template":"","class_list":["post-398071","topic","type-topic","status-publish","hentry","topic-tag-fullydevelopedturbulentflow-1","topic-tag-k--turbulence-model-1","topic-tag-simulation","topic-tag-turbulent-model"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["398071"],"_bbp_subscription":["292101","15180"],"_bbp_author_ip":["103.158.43.25"],"_bbp_last_reply_id":["403835"],"_bbp_last_active_id":["403835"],"_bbp_last_active_time":["2025-01-07 05:22:48"],"_bbp_reply_count":["5"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["292101","15180"],"_btv_view_count":["1358"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1738921695:57346"]},"test":"am21d009smail-iitm-ac-in"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/398071","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/398071\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=398071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}