{"id":383247,"date":"2024-09-19T23:42:48","date_gmt":"2024-09-19T23:42:48","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cfd-dem-semi-resolved-method\/"},"modified":"2024-09-19T23:42:48","modified_gmt":"2024-09-19T23:42:48","slug":"cfd-dem-semi-resolved-method","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cfd-dem-semi-resolved-method\/","title":{"rendered":"CFD-DEM semi resolved method"},"content":{"rendered":"<p>&lt;p&gt;Hello,&lt;\/p&gt;&lt;p&gt;I am trying to simulation a mixing tank using CFD-DEM semi resolved method and I have a problem with the convergence of the PI controller. after each iterations all residuals parameters value like continuty goes down but the PI controller fluctuates and goes up and down and does not converge.&nbsp;&lt;\/p&gt;&lt;p&gt;can you please help me with it?&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/09\/19-09-2024-1726789362-mceclip0.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-383247","topic","type-topic","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=\"Hello,I am trying to simulation a mixing tank using CFD-DEM semi resolved method and I have a problem with the convergence of the PI controller. after each iterations all residuals parameters value like continuty goes down but the PI controller fluctuates and goes up and down and does not converge. can you please help me with\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cfd-dem-semi-resolved-method\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta 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