


{"id":35743,"date":"2019-06-04T08:29:36","date_gmt":"2019-06-04T08:29:36","guid":{"rendered":"\/forum\/forums\/topic\/problem-in-fluent-for-2d-airfoil-cfd-simulation-unassigned-input-parameters\/"},"modified":"2019-06-04T08:29:36","modified_gmt":"2019-06-04T08:29:36","slug":"problem-in-fluent-for-2d-airfoil-cfd-simulation-unassigned-input-parameters","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problem-in-fluent-for-2d-airfoil-cfd-simulation-unassigned-input-parameters\/","title":{"rendered":"Problem in Fluent for 2D Airfoil CFD Simulation &#8211; Unassigned input parameters"},"content":{"rendered":"<p>Hello everyone,<\/p>\n<p><\/p>\n<p>I am a new member of the student community. I hope that this message is posted in the right place.&nbsp;<\/p>\n<p><\/p>\n<p>To briefly explain my problem, I am trying to create a CFD Simulation with Fluent around a 2D airfoil placed in a circular study domain. The goal of this simulation is to obtain results from different angles of attack of the airfoil. To do this, I would like to create input parameters (2 components of the fluid direction) related to my far field (Circular study domain) so that I can implement many angles in the workbench parameters set and simulate only one time.&nbsp;I selected&nbsp;pressure-far-field for the far field boundary condition type.&nbsp;<\/p>\n<p><\/p>\n<p>There, two problems occur. The first is that Fluent crash when I click &#8220;OK&#8221; to validate the creation of the &#8220;New input parameter&#8221;. I have got&nbsp;this error message :<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/782fe46a-99bd-4705-a3fd-aa62007e5222\/176b00fd-200c-4f69-b638-aa6200849cd1_fluent-capture.jpg?width=690&amp;upscale=false\" alt=\"Screen Capture of the error message from fluent console\"><\/p>\n<p><\/p>\n<p>I must then force the closing of Fluent.<\/p>\n<p><\/p>\n<p>The second problem occurs once I have successfully created the input parameters after many tries. There, the parameters are unassigned. That means that they are related to nothing, they are supposed to be &#8220;Used in&#8221; the far field of my domain. Thus, they are unusable and I am stuck with no solution. Here is a screenshot to illustrate what I try to explain :<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/782fe46a-99bd-4705-a3fd-aa62007e5222\/5f1377ea-b76e-43a9-ad0d-aa6200873ba5_fluent-capture-2.jpg?width=690&amp;upscale=false\" alt=\"Screenshot of fluent windows\"><\/p>\n<p><\/p>\n<p>The only way in found to successfully create usable input parameters is to set the far field boundary condition type to velocity-inlet. Then, I can create a parameters as I wish, but my domain is circular and this type of boundary condition is not&nbsp;suitable for such a domain.&nbsp;<\/p>\n<p><\/p>\n<p>If anyone has encountered this problem before and found a solution, it would help me a lot.<\/p>\n<p><\/p>\n<p>Thank you in advance.<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-35743","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["7915"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0"],"_btv_view_count":["870"],"_bbp_subscription":["240460"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["35743"],"_bbp_forum_id":["27792"],"_bbp_engagement":["59","199","22555","165778"],"_bbp_voice_count":["4"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["87017"],"_bbp_last_active_id":["87017"],"_bbp_last_active_time":["2019-06-13 17:29:26"]},"test":"guid7"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/35743","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\/35743\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=35743"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}