{"id":403825,"date":"2025-01-07T03:43:41","date_gmt":"2025-01-07T03:43:41","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/unexpected-periodic-deformation-in-2-way-fsi-simulation-with-constant-inlet-velo\/"},"modified":"2025-01-07T03:43:41","modified_gmt":"2025-01-07T03:43:41","slug":"unexpected-periodic-deformation-in-2-way-fsi-simulation-with-constant-inlet-velo","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/unexpected-periodic-deformation-in-2-way-fsi-simulation-with-constant-inlet-velo\/","title":{"rendered":"Unexpected Periodic Deformation in 2-Way FSI Simulation with Constant Inlet Velo"},"content":{"rendered":"<p>&lt;p&gt;Hi everyone\uff01&lt;\/p&gt;&lt;p&gt;I am conducting a 2-way FSI simulation, where the fluid domain has an inlet velocity of 0.5 m\/s. However, in the structural domain results, six deformation waves appear, which seems unreasonable. Ideally, the deformation should gradually increase over time instead of showing periodic waves.&lt;\/p&gt;&lt;p&gt;Could anyone help identify which settings might be incorrect?&lt;br&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/07-01-2025-1736221411-3.png\" alt=\"\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-403825","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["403825"],"_bbp_author_ip":["59.125.78.142"],"_bbp_last_reply_id":["406480"],"_bbp_last_active_id":["406480"],"_bbp_last_active_time":["2025-01-21 15:37:02"],"_bbp_reply_count":["15"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["3"],"_bbp_engagement":["347256","199","41577"],"_btv_view_count":["201"],"_bbp_topic_status":["unanswered"],"_bbp_subscription":["199","347256","41577"]},"test":"idenyu8701gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/403825","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\/403825\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=403825"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}