{"id":51912,"date":"2021-02-04T13:05:16","date_gmt":"2021-02-04T13:05:16","guid":{"rendered":"\/forum\/forums\/topic\/mrf-wall-boundary-condition\/"},"modified":"2021-02-04T13:05:16","modified_gmt":"2021-02-04T13:05:16","slug":"mrf-wall-boundary-condition","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mrf-wall-boundary-condition\/","title":{"rendered":"MRF Wall Boundary Condition"},"content":{"rendered":"<p>Hello,nI&#8217;m currently analyzing a wind turbine (only one blade is being analyzed). I have a flow domain and there is a blade which is extracted from the flow domain with the Boolean command. I selected the faces of the blade in the name selection. nWhat should I choose for the boundary conditions of this blade if I&#8217;m using MRF method(blade is a wall obviously)? Should I leave it as it is which is basically stationary wall\/relative to cell zone? Or should I change it to moving wall\/relative to cell zone and give 0 rpm rotation to it? nI read that when we are using MRF approach, it&#8217;s as if we&#8217;re standing on the blade and therefore blade is stationary for us and everything else is rotating. I would really appreciate if someone can clarify this boundary condition.nBest Regards,<\/p>\n","protected":false},"template":"","class_list":["post-51912","topic","type-topic","status-closed","hentry","topic-tag-mrf"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello,nI&#039;m currently analyzing a wind turbine (only one blade is being analyzed). I have a flow domain and there is a blade which is extracted from the flow domain with the Boolean command. 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