{"id":425623,"date":"2025-03-13T20:19:18","date_gmt":"2025-03-13T20:19:18","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-aqwa-ratio-of-distance-error\/"},"modified":"2025-03-13T20:19:18","modified_gmt":"2025-03-13T20:19:18","slug":"ansys-aqwa-ratio-of-distance-error","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-aqwa-ratio-of-distance-error\/","title":{"rendered":"ANSYS AQWA &#8211; Ratio of distance error"},"content":{"rendered":"<p>&lt;p&gt;Hi,&lt;br&gt;&lt;br&gt;I am trying to simulate a multiconnnected rigid body floating system with the following specifications:&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/13-03-2025-1741896928-mceclip1.png\" \/>&lt;\/p&gt;&lt;p&gt;The simulation runs without any errors for irregular waves with low Hs but when I try to simulate a rough sea state with a JONSWAP spectrum with Hs- 2m, gamma &#8211; 3.3 and Tp &#8211; 7s, it results in this error:&lt;br&gt;&lt;br&gt;&#8221;&nbsp;Ratio of the distance change exceeded by 75%. The current distance (d_cur) between Panel#1728 on Structure#2 and Panel#2732 on Structure#3 within a hydrodynamic interaction group is 0.739. The distance (d_ini) of these panels in Aqwa-Line is 5.000. Stopped at Time = 535.00.&#8221;&lt;br&gt;&lt;br&gt;I am not quite sure on why this occurs and how to fix it. Could someone please help me out with fixing this error. I have also attached the screenshot of the error below for better understanding. Thanks!&lt;br&gt;&lt;br&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/13-03-2025-1741896888-mceclip0.png\" width=\"921\" height=\"333\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-425623","topic","type-topic","status-publish","hentry","topic-tag-ansys-aqwa","topic-tag-aqwa","topic-tag-aqwa-errors"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["425623"],"_bbp_subscription":["61960","180344"],"_bbp_author_ip":["2001:610:450:a0::d:74"],"_bbp_last_reply_id":["426323"],"_bbp_last_active_id":["426323"],"_bbp_last_active_time":["2025-03-20 12:15:24"],"_bbp_reply_count":["9"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["61960","180344"],"_btv_view_count":["312"],"_bbp_topic_status":["unanswered"]},"test":"s-s-s-shankavasukitudelft-nl"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/425623","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\/425623\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=425623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}