{"id":290892,"date":"2023-06-29T11:45:07","date_gmt":"2023-06-29T11:45:07","guid":{"rendered":"\/forum\/?post_type=reply&#038;p=290892"},"modified":"2023-06-29T11:45:07","modified_gmt":"2023-06-29T11:45:07","slug":"290892","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/290892\/","title":{"rendered":"Reply To: Neumann boundary condition"},"content":{"rendered":"<p style=\"text-align: justify\">Thank you for your reply. However, I didn&#8217;t get the answer to my question after going through the suggested chapter. The only thing related to the question I found was that the boundary condition Im asking about is the default at the walls. Let me rephrase my question. Some problems at the inlet don&#8217;t provide a specific species mass fraction (also called Dirichlet boundary condition) but they provide a specific mass flux (or Neumann boundary conditions). In this case, how can I add this mass flux in fluent since at the species option under velocity inlet there is only an option to add species mass fraction only?<\/p>\n","protected":false},"template":"","class_list":["post-290892","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/290892","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\/290892\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=290892"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}