{"id":373315,"date":"2024-07-23T18:41:57","date_gmt":"2024-07-23T18:41:57","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/single-floating-structure-ansys-aqwa\/"},"modified":"2024-07-23T18:41:57","modified_gmt":"2024-07-23T18:41:57","slug":"single-floating-structure-ansys-aqwa","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/single-floating-structure-ansys-aqwa\/","title":{"rendered":"Single floating structure Ansys AQWA"},"content":{"rendered":"<p>Hi,&nbsp;<\/p>\n<p>I am trying to validate a single floating structure using ansys AQWA. I am using this article as a reference to which I am trying to validate my simulations &#8211;&nbsp;<a href=\"https:\/\/doi.org\/10.3390\/jmse9091028\">https:\/\/doi.org\/10.3390\/jmse9091028<\/a><\/p>\n<p>My simulation setup is as follows :-&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/23-07-2024-1721759556-mceclip0.png\" width=\"743\" height=\"423\"><\/p>\n<p>I am currently validating the results of the hydrodynamic diffraction through RAOs and the results are as follows:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/23-07-2024-1721759683-mceclip2.png\" width=\"933\" height=\"327\"><\/p>\n<p>As it can be seen from the plots, there is a clear difference with my simulations and the results from the reference article. I have ensured that the mass and interial properties are correct. I have also performed a mesh independence and a domain independent studies. Based on doing all these, I still get differences in the results and I have some questions regarding this which are as follows:<\/p>\n<ol>\n<li>What could be the cause of this difference in results?&nbsp;<\/li>\n<li>Do I have to include an additional damping matrix?<\/li>\n<li>How do I determine the damping matrix as the reference article does not mention it?<\/li>\n<li>Also for the mooring lines, I am not sure where I need to define the pretension of the cables because I dont find the option.<\/li>\n<\/ol>\n<p>Please let me know what I am missing out and how to solve this issue.<\/p>\n<p>Thanks!<\/p>\n","protected":false},"template":"","class_list":["post-373315","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["61960","180344"],"_bbp_author_ip":["2001:610:450:a0::5:f"]," _bbp_last_reply_id":["0"],"_btv_view_count":["415"]," _bbp_likes_count":["0"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["373315"],"_bbp_forum_id":["27792"],"_bbp_engagement":["61960","180344"],"_bbp_voice_count":["2"],"_bbp_reply_count":["28"],"_bbp_last_reply_id":["382594"],"_bbp_last_active_id":["382594"],"_bbp_last_active_time":["2024-09-13 10:32:17"]},"test":"s-s-s-shankavasukitudelft-nl"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/373315","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\/373315\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=373315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}