{"id":366784,"date":"2024-05-14T14:37:47","date_gmt":"2024-05-14T14:37:47","guid":{"rendered":"\/forum\/forums\/topic\/vof-free-surface-deformation\/"},"modified":"2024-05-14T14:37:47","modified_gmt":"2024-05-14T14:37:47","slug":"vof-free-surface-deformation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/vof-free-surface-deformation\/","title":{"rendered":"VOF Free Surface Deformation"},"content":{"rendered":"<p>My aim is to accurately determine the free surface elevation when a wing moves over the free surface. I am trying to do (2D NACA0012 AoA 5, h\/c =1, Fnc = 1) but the free water surface does not deform (even when I make h\/c = 0.2). I am using &nbsp;2D mesh as below using the multiphase VOF model with the SST k-w solver . I have enabled gravity and implicit body forces. I opened &#8220;Open Channel Flow&#8221;. I canceled to use &#8220;Open Channel Flow&#8221;. However, although cl and residual graphs&nbsp; converge, free surface didn&#8217;t change as shown below.&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>I turned off &#8220;Open Channel Flow&#8221; and I defined two different velocity inlet for &#8220;inlet_air&#8221; and &#8220;inlet_water&#8221;. After initializing (compute from &#8220;inlet_air&#8221;), I defined a region to patch water. however, I get errors like &#8220;Turbulent viscosity limited&#8221; or &#8220;Reverse Flow&#8221;. I extended outlet place. It was 15c (c refers to chord length), i changed it as 30c but results were same<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/14-05-2024-1715697241-VF_Pressure_Inlet.JPG\" alt=\"\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/14-05-2024-1715697258-CL_Value_ressure__Inlet.JPG\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-366784","topic","type-topic","status-closed","hentry","topic-tag-fluent-cfd-ansys-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["296634","199"],"_bbp_author_ip":["184.24.96.207"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["1146"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["366784"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","296634"],"_bbp_voice_count":["2"],"_bbp_reply_count":["27"],"_bbp_last_reply_id":["369805"],"_bbp_last_active_id":["369805"],"_bbp_last_active_time":["2024-06-04 15:31:21"]},"test":"0540211f5db091739f25ffdbc786269b5665e34f"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/366784","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\/366784\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=366784"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}