{"id":159099,"date":"2021-06-02T15:35:19","date_gmt":"2021-06-02T15:35:19","guid":{"rendered":"\/forum\/forums\/topic\/pressure-outlet-outflow-condition-for-a-multiphase-flow\/"},"modified":"2021-12-08T14:23:46","modified_gmt":"2021-12-08T14:23:46","slug":"pressure-outlet-outflow-condition-for-a-multiphase-flow","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/pressure-outlet-outflow-condition-for-a-multiphase-flow\/","title":{"rendered":"Pressure outlet \/ Outflow condition for a multiphase flow"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi everyone. Its mentioned in the Ansys Fluent manual that I should not use outflow boundary condition especially in a multiphase flow. I am using a mass flow inlet and pressure outlet boundary condition. I am running with 1.6 million cells and I am already at 7000 iterations. I am using k-e, scalable wall functions, all second order equation with pseudo transient and time scale factor of 0.05. The issue is I am still facing Reverse flow at the pressure-outlet. When I change to outflow boundary condition, I see that there is no reverse flow. I have extended the outlet so that I can use the outflow boundary condition so that I can assume its a fully developed flow. Please let me know if its okay to use outlfow boundary condition<\/p>\n","protected":false},"template":"","class_list":["post-159099","topic","type-topic","status-closed","hentry","topic-tag-fluent","topic-tag-multiphase-flow","topic-tag-outflow","topic-tag-pressure-outlet"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_old_reply_author_name_id":["Anonymous"],"_bbp_old_is_reply_anonymous_id":["false"],"_btv_view_count":["1722"],"_bbp_likes_count":["0"],"_bbp_subscription":["257033"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["159099"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","182890","184913"],"_bbp_voice_count":["3"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["180728"],"_bbp_last_active_id":["180728"],"_bbp_last_active_time":["2021-12-08 14:23:46"]},"test":"kailash"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/159099","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/159099\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=159099"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}