{"id":317710,"date":"2023-11-15T01:43:58","date_gmt":"2023-11-15T01:43:58","guid":{"rendered":"\/forum\/forums\/topic\/why-do-unexpected-shock-waves-occur-at-fluidic-oscillator\/"},"modified":"2023-11-15T01:43:58","modified_gmt":"2023-11-15T01:43:58","slug":"why-do-unexpected-shock-waves-occur-at-fluidic-oscillator","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/why-do-unexpected-shock-waves-occur-at-fluidic-oscillator\/","title":{"rendered":"Why do unexpected shock waves occur at Fluidic OScillator?"},"content":{"rendered":"<p>Hi. I&#8217;m trying to study the oscillation angle of a fluid vibrator.<\/p>\n<p>And, I have actual research data through wind tunnel experiments.<\/p>\n<p>Based on the data, the time step and inlet pressure are set to proceed, but the oscillation dosen&#8217;t continue.<\/p>\n<p>The settings are,&nbsp;(Pressure inlet &#8211; 340 kPa(gauge)) \/ (time step &#8211; 1\/8 cycle for real freqyency) \/ (k-epsilon 2eqn &amp; Coupled methods &amp; Air for ideal gas, sutherland&#8217;s law) \/ (Hybrid initialize)<\/p>\n<p>total 1 milion fluent mesh, Most mesh insid<span style=\"font-size: 14pt\">e the fluid vibrator, Others, it was distributed appropriately.<\/span><img decoding=\"async\" style=\"font-size: 18.6667px\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/11\/15-11-2023-1700012481-kket.png\" alt=\"\"><\/p>\n<p>Sometimes, I have to make the time step very large so it oscillate, I don&#8217;t know what&#8217;s wrong.<\/p>\n<p>Please advise. Thx.<\/p>\n","protected":false},"template":"","class_list":["post-317710","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["36327","13659"],"_bbp_author_ip":["23.206.193.146"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["184"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["317710"],"_bbp_forum_id":["27796"],"_bbp_engagement":["13659","36327"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["318196"],"_bbp_last_active_id":["318196"],"_bbp_last_active_time":["2023-11-17 14:18:33"]},"test":"ebochinaver-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/317710","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\/317710\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=317710"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}