I am trying to simulate a vehicle enclosure that has a solar load, ac convection inside, and a shelf of different volumes containing heat generation. <\/p>\n
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In the first image, you can see my convection coefficient of 20 W\/m2 at ambient of 30C which I was using to simulate AC conditions dominates the interior. I did apply it to all surfaces inside besides the ceiling. The solar loading is 1120 W\/m2 to simulate the worst of the afternoon. The volumes on the shelving have a range of internal heat generation from ~51000 to ~2800 W\/m3. My confusion here is why none of the volumes are showing variation in heat and why the temperature on the room is so outrageous. Maybe that’s valid?<\/p>\n
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I reviewed some old boards here and saw it was suggested to do a volume extraction to simulate air. So I redid the model and created an air material at 25C. Then to fulfill the need of convection, I put a natural convection all around the outside walls. Now this is starting to have a lot more palatable temperatures, but it still seems off to have such high temperatures in the interior. Any suggestions?<\/p>\n
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My old sim professor always suggested to start off with a steady state model before jumping straight into fluid flow. So that’s what I’m trying to do before adding complexity. On another side note, in order to get the volume extraction, I had to make a hole in my enclosure at the top where I had a previously extruded box for a faux AC. Does that affect my enclosure results? Is there a way to get that extraction without a hole?<\/p>\n","protected":false},"template":"","class_list":["post-45717","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["17899"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["1466"],"_bbp_subscription":["253273"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["45717"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","179161"],"_bbp_voice_count":["2"],"_bbp_reply_count":["10"],"_bbp_last_reply_id":["120724"],"_bbp_last_active_id":["120724"],"_bbp_last_active_time":["2020-07-08 18:45:19"]},"test":"miniseeker22"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/45717","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\/45717\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=45717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}