{"id":54332,"date":"2021-04-16T12:36:26","date_gmt":"2021-04-16T12:36:26","guid":{"rendered":"\/forum\/forums\/topic\/external-lids-ansys-aqwa\/"},"modified":"2021-04-16T12:36:26","modified_gmt":"2021-04-16T12:36:26","slug":"external-lids-ansys-aqwa","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/external-lids-ansys-aqwa\/","title":{"rendered":"External Lids &#8211; ANSYS AQWA"},"content":{"rendered":"<p>Can someone please direct me to some resources that explain how to create external lids in ANSYS AQWA? I have been looking at the AQWA user manual, but there is not a lot of information.nI am trying to create an external lid between two bodies because I think that there is hydrodynamic interaction occurring in the gap between the bodies, leading to unrealistic hydro-diffraction results like added mass and radiation damping. I tried to create a surface in the space between the two bodies and set the structure type as abstract geometry to create the external lid. I tried running the model without a point mass for the lid and received an error message. I tried adding a point mass and received a different error message.n<img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/084\/B1XOH7XZJE0H.png\" width=\"458\" height=\"170\" \/><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/824\/VLYYZGJFTE2I.png\" width=\"265\" height=\"413\" \/>Without point mass:n<img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/850\/IM8D0GMFU99W.png\" width=\"1011\" height=\"96\" \/>With point mass:n<img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/750\/VZQPPVF4PXPO.png\" width=\"624\" height=\"48\" \/>n<\/p>\n","protected":false},"template":"","class_list":["post-54332","topic","type-topic","status-closed","hentry","topic-tag-ansys-aqwa","topic-tag-ansys-student"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["26662"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":["E??\u001a"],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["1763"],"_bbp_subscription":["233850","278012"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["54332"],"_bbp_forum_id":["27792"],"_bbp_engagement":["34392","188674","278012"],"_bbp_voice_count":["3"],"_bbp_reply_count":["8"],"_bbp_last_reply_id":["304513"],"_bbp_last_active_id":["304513"],"_bbp_last_active_time":["2023-09-01 09:13:29"]},"test":"jcapper"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/54332","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\/54332\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=54332"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}