{"id":461367,"date":"2026-07-15T11:39:53","date_gmt":"2026-07-15T11:39:53","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/3d-flux-lines-streamline-simulation\/"},"modified":"2026-07-15T11:39:53","modified_gmt":"2026-07-15T11:39:53","slug":"3d-flux-lines-streamline-simulation","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/3d-flux-lines-streamline-simulation\/","title":{"rendered":"3D flux lines streamline simulation"},"content":{"rendered":"<p>&lt;p&gt;Hi all, &lt;br&gt;I am simulating a 3D system in Maxwell 2025 R2 featuring two holding electromagnets (pot\/cup cores) pulling a ball bearing laterally. The magnets are configured with opposite polarities to create a continuous horseshoe loop. &nbsp;I am trying to visualize the 3D magnetic flux paths crossing the air gap and looping around the bearing. However, when plotting a Streamline overlay of B_Vector or H, the lines refuse to bridge the gap. They trace normally within the iron core, but either terminate abruptly at the solid boundaries or flatten completely if a global cross-section plane is chosen. &nbsp;&lt;br&gt;I have tried: &nbsp; &nbsp; &nbsp;&lt;br&gt;-Including the air Region and solid parts in the active In Volume selection list. &nbsp; &nbsp; &nbsp;&lt;br&gt;-Adjusting the global Streamline Plot general options under Reporter &gt; Fields Reporters (lowering the minimum field magnitude threshold below 5% and expanding max tracking length). &nbsp;&lt;br&gt;-Selecting different seed planes, faces etc. (using coil face(s) as seed, using planes as seed, using 2D plane as seed)&nbsp;&lt;br&gt;Even with these adjustments, the lines do not smoothly propagate through the air volume to create a continuous 3D wrap. Has anyone encountered this numerical cutoff with high-permeability cores, and what is the best practice for forcing a continuous 3D loop display across a low-refined air mesh? I have found a &#8220;janky&#8221; workaround by duplicating sheets 2mm apart to get the effect, but there has to be a native way to go about this. <img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/07\/15-07-2026-1784115442-trial.png\" alt=\"\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-461367","topic","type-topic","status-publish","hentry","topic-tag-AnsysMaxwellelectronics-1","topic-tag-3d-maxwell-simulation","topic-tag-ansys-maxwell","topic-tag-electromagnetics","topic-tag-streamlines-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27793"],"_bbp_topic_id":["461367"],"_bbp_subscription":["710033"],"_bbp_author_ip":["79.116.139.222"],"_bbp_last_reply_id":["0"],"_bbp_last_active_id":["461367"],"_bbp_last_active_time":["2026-07-15 11:39:53"],"_bbp_reply_count":["0"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["1"],"_bbp_engagement":["710033"],"_btv_view_count":["47"],"_bbp_topic_status":["unanswered"]},"test":"dinb3ftr-pte-hu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/461367","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\/461367\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=461367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}