{"id":197214,"date":"2021-11-19T12:21:58","date_gmt":"2021-11-19T12:21:58","guid":{"rendered":"\/forum\/forums\/reply\/197214\/"},"modified":"2021-11-19T12:23:10","modified_gmt":"2021-11-19T12:23:10","slug":"197214","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/197214\/","title":{"rendered":"Reply To: Update dynamic mesh failed. Negative cell volume detected"},"content":{"rendered":"<p>Sir, one more query. I might be wrong. but please suggest<br \/>\nSince the clearance between shaft and bearing is very small and hence because of this the fluid pressure exerted on the bearing structure is very large. Later, because of these large pressure values, large deformations are observed in the bearing structure and so to accommodate that bearing deformation, the fluid mesh should drastically change.  I think because of this negative cell volume is detected? I am just guessing. How can I steadily ramp the generated fluid pressure on the structure rather than apply it suddenly?<br \/>\nis it possible to do CFD analysis first ( partially solve it) and then continue the system coupling (two-way FSI)<\/p>\n","protected":false},"template":"","class_list":["post-197214","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=\"Sir, one more query. I might be wrong. but please suggest Since the clearance between shaft and bearing is very small and hence because of this the fluid pressure exerted on the bearing structure is very large. Later, because of these large pressure values, large deformations are observed in the bearing structure and so to\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/197214\/\" \/>\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: Update dynamic mesh failed. Negative cell volume detected | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Sir, one more query. I might be wrong. but please suggest Since the clearance between shaft and bearing is very small and hence because of this the fluid pressure exerted on the bearing structure is very large. Later, because of these large pressure values, large deformations are observed in the bearing structure and so to\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/197214\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2021-11-19T12:21:58+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2021-11-19T12:23:10+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Update dynamic mesh failed. Negative cell volume detected | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Sir, one more query. I might be wrong. but please suggest Since the clearance between shaft and bearing is very small and hence because of this the fluid pressure exerted on the bearing structure is very large. 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