{"id":372986,"date":"2024-07-22T11:08:33","date_gmt":"2024-07-22T11:08:33","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/372986\/"},"modified":"2024-07-22T11:15:25","modified_gmt":"2024-07-22T11:15:25","slug":"372986","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/372986\/","title":{"rendered":"Reply To: Issue with Inlet Pressure in CFD Simulation of a Laval Nozzle"},"content":{"rendered":"<p>&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;The static inlet pressure varies with the diameter of the nozzle throat from 100,000 up to 500,000 Pa. Could it be that the inlet pressure I set is the total pressure?&lt;\/p&gt;&lt;p&gt;If that&rsquo;s the case and I don&rsquo;t know the inlet speed, how am I supposed to determine the correct total pressure for different geometries? The volumetric flow rate and thus the speed, changes depending on the nozzle shape, so I can&rsquo;t predict which flow rate will prevail at each simulation.&lt;\/p&gt;&lt;p&gt;Additionally, my simulation hasn&#8217;t converged either. I have set the residuals to 1e-6 for convergence.&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-372986","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/372986","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":2,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/372986\/revisions"}],"predecessor-version":[{"id":372990,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/372986\/revisions\/372990"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=372986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}