


{"id":378001,"date":"2024-08-12T18:02:48","date_gmt":"2024-08-12T18:02:48","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/icfd-mesh-error-surface-collapse-not-possible-to-locate\/"},"modified":"2024-08-17T13:05:07","modified_gmt":"2024-08-17T13:05:07","slug":"icfd-mesh-error-surface-collapse-not-possible-to-locate","status":"answered","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/icfd-mesh-error-surface-collapse-not-possible-to-locate\/","title":{"rendered":"ICFD Mesh error: Surface Collapse not possible to locate"},"content":{"rendered":"<p>Hello,<\/p>\n<p>I am running a FSI model with LS-Dyna R11.2. After intersecting nodes and creating elements for the ICFD mesh, the following error appears: <\/p>\n<p>&#8220;Error 120003 (ICFD+3)&#8221;<br \/>&#8220;ICFD ERROR:: mesh error.Possible surface collapse 3&#8221;.<\/p>\n<p>I am aware that this error has already been discussed here, and the solution given was to check the &#8220;icfd_tmp_sm&#8221; file. However, in my case, when I check this file, it only displays the surface mesh that I have already created, and the collapse can not be located in it. The mesh has been checked in my pre-processor and it has passed all the correspondent checks (free edges, element intersection, coincident nodes\/elements,&#8230;).<\/p>\n<p>What causes could be triggering this error?<br \/>Does LS-Dyna have difficulties in volumetric meshing from surface mesh in specific geometries?<br \/>Is the &#8220;3&#8221; displayed in the error relevant?<br \/>In some simulations, the error is written with symbols and numbers instead of only letters. Might this be a possible hint?<\/p>\n<p>I have run several iterations and simplifications of my model, and I have only been able to run a pure ICFD simplified model with 60,000 (surface) elements, which after 4 days, has simulated 0.15s out of 1.2s. I understand that these runtimes are not usual for an engineering-prepared workstation&#8230;<\/p>\n<p>I am sorry for so many questions, but this has been following me for more than two weeks already. I really hope someone can provide me some advice or guidance on this.<\/p>\n<p>Thank you very much for your time and help!<br \/>Arnau<\/p>\n","protected":false},"template":"","class_list":["post-378001","topic","type-topic","status-answered","hentry","topic-tag-meshingerror-1","topic-tag-icfd-1","topic-tag-mesh","topic-tag-meshing"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["444020","13694"],"_bbp_author_ip":["37.60.66.90"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["867"],"_bbp_topic_status":["answered"],"_bbp_topic_id":["378001"],"_bbp_forum_id":["27814"],"_bbp_engagement":["13694","444020"],"_bbp_voice_count":["2"],"_bbp_last_reply_id":["379205"],"_bbp_last_active_id":["379205"],"_bbp_last_active_time":["2024-08-15 18:52:25"]},"test":"arnau994hotmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/378001","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":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/378001\/revisions"}],"predecessor-version":[{"id":379301,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/378001\/revisions\/379301"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=378001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}