{"id":360076,"date":"2024-04-02T15:51:17","date_gmt":"2024-04-02T15:51:17","guid":{"rendered":"\/forum\/forums\/reply\/360076\/"},"modified":"2024-04-02T15:51:17","modified_gmt":"2024-04-02T15:51:17","slug":"360076","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/360076\/","title":{"rendered":"Reply To: Using Dense Discrete Phase Model Injection Type"},"content":{"rendered":"<p>&lt;p&gt;Hi, thanks for your reply.&nbsp;&lt;\/p&gt;&lt;p&gt;I have used the following formula to calculate the total mass flow rate (kg\/s) = volume fraction\/volume of particle multiplied by the area of the geometry (2D pipe) and by the particle velocity, and the calculated value 11 kg\/s. However, the solver could not complete the calculation with the message &#8221;reverse flow&#8221; &#8221;turbulent viscosity limited&#8221; and &#8221;floating point error&#8221; when this value is set. Hence, I set the value to default (1e-20) and the simulation completed but the solver returns a value zero for particle radial distribuion even when it says some particles are trapped on the walls.&nbsp;&nbsp;&lt;\/p&gt;&lt;p&gt;Some assistance with setting the mass flow rate and how many particles are injected when the surface type injection is set would be boost.&nbsp;&lt;\/p&gt;&lt;p&gt;Many thanks,&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-360076","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/360076","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\/360076\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=360076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}