{"id":309414,"date":"2023-09-29T13:21:01","date_gmt":"2023-09-29T13:21:01","guid":{"rendered":"\/forum\/forums\/reply\/309414\/"},"modified":"2023-09-29T13:21:01","modified_gmt":"2023-09-29T13:21:01","slug":"309414","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/309414\/","title":{"rendered":"Reply To: Ground Effect Fluent Simulations"},"content":{"rendered":"<p>&lt;p&gt;as you can see sir that i wrote a UDF for airfoil which is moving in straight path&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;div&gt;#include &#8220;udf.h&#8221;&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;DEFINE_CG_MOTION(airfoil,dt,vel,omega,time,dtime)&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;{&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;&nbsp; real t=time;&lt;\/div&gt;&lt;div&gt;&nbsp;&nbsp;&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;&nbsp; vel[1]= -0.025*t;&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;}&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;so can u help me to write UDF which is similair to real life&nbsp;&lt;\/div&gt;<\/p>\n","protected":false},"template":"","class_list":["post-309414","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/309414","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/309414\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=309414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}