{"id":320545,"date":"2023-12-02T08:50:57","date_gmt":"2023-12-02T08:50:57","guid":{"rendered":"\/forum\/forums\/reply\/320545\/"},"modified":"2023-12-02T08:50:57","modified_gmt":"2023-12-02T08:50:57","slug":"320545","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/320545\/","title":{"rendered":"Reply To: the method to create external flow geometry with design modeler"},"content":{"rendered":"<p>&lt;p&gt;@<strong>NickFL, hi sir.&nbsp; <\/strong>&lt;\/p&gt;&lt;p&gt;Your reply is highly appreciated. I&#8217;m still not exactly understand what you have mentioned in the second solution. Do you mean that keep the two cylinder don&#8217;t move, and create a tiny body including the centerline so that we can merge them into one? But if doing so ,we may have to lose some characterstic in the external flow ,isn&#8217;t it?&lt;\/p&gt;&lt;p&gt;here I have some experimental data of external fluid flow ,and the experimental devices is exactly what I have mentioned above. It&#8217;s the fluid flow outside two cylinders which are tangent to each other with a centerline. So here comes the problem, I cannot create such geometry in my simulation. Following your suggestions, should I create a tiny body to merge them though it&#8217;s not completely as same as my device?&lt;\/p&gt;&lt;p&gt;Thanks again for your relpy!&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-320545","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=\"@NickFL, hi sir. Your reply is highly appreciated. I&#039;m still not exactly understand what you have mentioned in the second solution. 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