{"id":311595,"date":"2023-10-16T09:07:28","date_gmt":"2023-10-16T09:07:28","guid":{"rendered":"\/forum\/forums\/topic\/interface-problem-between-2-fluids-in-fluent\/"},"modified":"2023-10-16T09:07:28","modified_gmt":"2023-10-16T09:07:28","slug":"interface-problem-between-2-fluids-in-fluent","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/interface-problem-between-2-fluids-in-fluent\/","title":{"rendered":"interface problem between 2 fluids in fluent"},"content":{"rendered":"<p>Hello everyone,&nbsp;<\/p>\n<p>I am currently trying to design a centrifugal pump and want to simulation it in fluent and i need help with a problem on which i try everything for 3 days before comming here.<\/p>\n<p>I have prepared my CAD (solidworks), imported it in space claim (volume extract and corrected geometric problems with it), have done my meshing in fluent but when i switch to solution i can&#8217;t create a surface mesh since only 1 of the 2 interfaces is here (see pictures to understand, looks &#8216;fusionned&#8217;). My two NS interface turbine and interface volute disapeared but this weird interfaces is now here. However, i can&#8217;t creat a mesh interface with it which is annoying. (also, when shown, it isn&#8217;t yellow as an interface should be but green).<\/p>\n<p>I do not know how to solve this problem, i have tried to modify my CAD, use share in Spaceclaim, use share topology in fluent to &#8216;force&#8217; the creation of an interface between the 2 parts i need, change meshing parameters and naming my surfaces many different ways, but nothing change.<\/p>\n<p>In the attached files, you&#8217;ll find &#8216;stacked pictures&#8217; with :<\/p>\n<ul>\n<li>pics of the Spaceclaim model with NS ans the surfaces i want as an interface<\/li>\n<li>pics of the fluent meshing with everything done to it<\/li>\n<li>pics of fluent solutions highlighting the problem<\/li>\n<\/ul>\n<p>Note :<\/p>\n<ul>\n<li>I have tried to modify my CAD in order to have only 2 &#8216;cylinder&#8217; interface surfaces but it doesn&#8217;t solve the problem. Also for now i do not know if naming all the other surfaces apart from interfaces, inlet and outlet is mandatory for this cfd.<\/li>\n<li>When i open fluent meshing, i have to switch my interfaces from wall to interface in &#8216;update boundary&#8217;<\/li>\n<\/ul>\n<p>Thanks a lot for the time you&#8217;ll take to help me, have a great day ! \ud83d\ude42<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/10\/16-10-2023-1697447084-stacked pictures.png\" alt=\"\"><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-311595","topic","type-topic","status-closed","hentry","topic-tag-cfd-dem","topic-tag-interface","topic-tag-simulation","topic-tag-spaceclaim","topic-tag-unassigned-interface"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello everyone, I am currently trying to design a centrifugal pump and want to simulation it in fluent and i need help 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