{"id":394220,"date":"2024-11-19T09:40:54","date_gmt":"2024-11-19T09:40:54","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/diffuse-sound-field-settings\/"},"modified":"2024-11-19T09:40:54","modified_gmt":"2024-11-19T09:40:54","slug":"diffuse-sound-field-settings","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/diffuse-sound-field-settings\/","title":{"rendered":"Diffuse Sound Field Settings"},"content":{"rendered":"<p>&lt;p&gt;Hello!&lt;br&gt;&lt;br&gt;I am trying to understand how the <strong>Reference PSD<\/strong> and <strong>Number of Divisions on Reference Sphere<\/strong> settings in DSF influence the amplitude of the incident waves. Based on the formula below, I understand that the amplitude depends on both the Reference PSD and the area of each segment on the reference sphere:&lt;br&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/19-11-2024-1732008930-mceclip0.png\" \/>&lt;\/p&gt;&lt;p&gt;From the solver output and settings, I understand that <strong>Number of Divisions on Reference Sphere<\/strong> represents the <strong>number of parallel divisions<\/strong> on the sphere. My questions are as follows:&lt;\/p&gt;<\/p>\n<ol>\n<li>Does this parameter only divide the sphere into parallel rings (horizontal slices), or are there additional subdivisions to form segments (squares or rectangles)?<\/li>\n<li>If there are additional subdivisions, how exactly are they defined geometrically?<\/li>\n<\/ol>\n<p>&lt;p&gt;Ultimately, I need to know the exact area of each segment because it directly affects the amplitude calculation. Knowing the segment area will allow me to adjust the Reference PSD to achieve a specific amplitude (for example, 1 Pa).&lt;br&gt;Correct me if I&#8217;m wrong in my reasoning. Maybe I misunderstood something.&lt;\/p&gt;&lt;p&gt;I would appreciate any clarification or details about how the sphere is divided and how to interpret these settings.&lt;\/p&gt;&lt;p&gt;Thank you!&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-394220","topic","type-topic","status-publish","hentry","topic-tag-acousticsimulation-1","topic-tag-diffuse-sound-field","topic-tag-harmonic-acoustics"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["482767","58821"],"_bbp_author_ip":["67.159.8.140"],"_btv_view_count":["390"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["394220"],"_bbp_forum_id":["27791"],"_bbp_engagement":["58821","482767"],"_bbp_voice_count":["2"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["394460"],"_bbp_last_active_id":["394460"],"_bbp_last_active_time":["2024-11-20 09:30:53"]},"test":"z-aniretajgmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/394220","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\/394220\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=394220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}