{"id":326511,"date":"2023-12-05T16:30:33","date_gmt":"2023-12-05T16:30:33","guid":{"rendered":"\/forum\/forums\/topic\/q3d-rl-analysis-enhanced-accuracy-in-dc-to-ac-transition-region-2\/"},"modified":"2023-12-05T16:30:33","modified_gmt":"2023-12-05T16:30:33","slug":"q3d-rl-analysis-enhanced-accuracy-in-dc-to-ac-transition-region-2","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/q3d-rl-analysis-enhanced-accuracy-in-dc-to-ac-transition-region-2\/","title":{"rendered":"Q3D RL Analysis Enhanced Accuracy in DC-to-AC Transition Region"},"content":{"rendered":"<p>Hi,&nbsp;<\/p>\n<p>I tried the beta option <strong>Enhanced Accuracy in DC-to-AC Transition Region <\/strong>in Q3D Ectractor in Ansys AEDT 2023R1. My test case consists of a single straight rectangular conductor of width w = 150 um, thickness t = 25 um, length l = 5 mm made of copper in vacuum. I simulated from DC up to 150 MHz (= solution frequency), where the skin depth is 5.4 um. I could not see any change\/improvement, by tightening the <strong>Relative Error in R\/L <\/strong>from default to<strong> <\/strong>smaller values. I also did not see any additional frequencies being solved.&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/12\/05-12-2023-1701793518-mceclip2.png\"><\/p>\n<p>I have my own matlab script for this testcase, which uses partial inductances (i.e. PEEC method) to calculate the AC R at discrete frequency points. I see very precise agreement for the AC R value (150 MHz Solution Frequency) and the DC R. The transition range is also quite close, but I wanted to see if I can increse the accuracy further.&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/12\/05-12-2023-1701792344-mceclip1.png\"><\/p>\n<p>So does the beta feature work correctly and there is no change to be expected, when tightening the transistion for this testcase? That seems odd to me. Thx in advance.&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-326511","topic","type-topic","status-closed","hentry","topic-tag-ansys-q3d-extractor","topic-tag-q3d","topic-tag-q3d-extractor","topic-tag-skin-effect"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["294326","28551"],"_bbp_author_ip":["23.206.193.146"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["640"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["326511"],"_bbp_forum_id":["27793"],"_bbp_engagement":["28551","294326"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["326686"],"_bbp_last_active_id":["326686"],"_bbp_last_active_time":["2023-12-06 15:01:31"]},"test":"jan-stoebestud-uni-hannover-de"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/326511","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\/326511\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=326511"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}