


{"id":437510,"date":"2025-07-23T02:35:57","date_gmt":"2025-07-23T02:35:57","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/heat-solver-transient-heat-simulation\/"},"modified":"2025-07-23T02:35:57","modified_gmt":"2025-07-23T02:35:57","slug":"heat-solver-transient-heat-simulation","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/heat-solver-transient-heat-simulation\/","title":{"rendered":"HEAT solver &#8211; transient heat simulation"},"content":{"rendered":"<p>&lt;p&gt;\uc548\ub155\ud558\uc138\uc694. \uc6b8\uc0b0\uacfc\ud559\uae30\uc220\uc6d0 \uc804\uae30\uc804\uc790\uacf5\ud559\ubd80 \ub300\ud559\uc6d0\uc0dd \uc11c\uc9c0\ud6c8\uc785\ub2c8\ub2e4.&nbsp;&lt;\/p&gt;&lt;p&gt;HEAT solver\ub97c \ud1b5\ud574 thermo-optic phase shifter\uc758 transient \uc628\ub3c4 \ubcc0\ud654\ub97c \uacc4\uc0b0\ud558\ub294 \uacfc\uc815\uc5d0\uc11c, \uacb0\uacfc\uac00 \uc218\ub834\ud558\uae30\uae4c\uc9c0 \uacc4\uc0b0\uc5d0 \ud544\uc694\ud55c \uc2dc\uac04\uc774 \ub108\ubb34 \ub9ce\uc774 \ub4dc\ub294 \uac83\uc774 \uc544\ub2cc\uc9c0 \uc5ec\ucb64\ubcf4\uae30 \uc704\ud574 \ubb38\uc758 \ub4dc\ub9bd\ub2c8\ub2e4.&nbsp;&lt;\/p&gt;&lt;p&gt;\uba3c\uc800, \uc81c\uac00 \uc2e4\ud589\ud55c \uc2dc\ubbac\ub808\uc774\uc158\uc758 \uc8fc\uc694 \uc870\uac74\uc744 \ub9d0\uc500\ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4.&nbsp;&lt;\/p&gt;&lt;p&gt;\uc544\ub798\uc758 \uadf8\ub9bc\uc740 \uc81c\uac00 \uc2dc\ubbac\ub808\uc774\uc158\uc5d0\uc11c \uc0ac\uc6a9\ud55c \ud788\ud130\uc758 \ubb3c\uc131\uc785\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \uc2dc\ubbac\ub808\uc774\uc158 \ub3c4\uba54\uc778 \uc0ac\uc774\uc988\ub294 \uc2e4\ub9ac\ucf58 rib \ub3c4\ud30c\ub85c \uc911\uc2ec\uc744 \uae30\uc900\uc73c\ub85c \uac00\ub85c \uc138\ub85c \ud3ed\uc740 700 um x 350 um\ub97c \uc7a1\uc544 \uc2dc\ubbac\ub808\uc774\uc158\uc744 \uc2e4\ud589\ud588\uc2b5\ub2c8\ub2e4.&nbsp;&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/07\/23-07-2025-1753233033-Picture1.png\" alt=\"\" width=\"464\" height=\"188\" \/>&lt;\/p&gt;&lt;p&gt;Transient simulation control \uc870\uac74\uc740 min\/max time step \uacfc abs\/rel lte limit\uc744 \uc544\ub798 5\uac00\uc9c0 \uc870\uac74\uc73c\ub85c \uc2e4\ud589\ud588\uc744 \ub54c, \uc2dc\uac04 \uacbd\uacfc\uc5d0 \ub530\ub978 \uc2e4\ub9ac\ucf58 \uc911\uc2ec \uc628\ub3c4 \ubcc0\ud654 (dT)\ub97c linear\/log time scale \uacb0\uacfc\ub97c \uadf8\ub798\ud504\ub85c \uc815\ub9ac\ud558\uc600\uc2b5\ub2c8\ub2e4.&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/07\/23-07-2025-1753233536-Picture3.png\" alt=\"\" width=\"413\" height=\"325\" \/>&nbsp; &nbsp;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/07\/23-07-2025-1753233497-Picture2.png\" alt=\"\" width=\"358\" height=\"161\" \/> , dT = (T(t) &#8211; T0)\/(T_max &#8211; T0), shutter step on timing = 1 ns, shutter slew = 0 fs&lt;\/p&gt;&lt;p&gt;\uc2dc\ubbac\ub808\uc774\uc158 \uc2e4\ud589 \uacb0\uacfc \ubcf4\uc2dc\ub294 \uacb0\uacfc\uc640 \uac19\uc774 min\/max time step \uacfc abs\/rel lte limit\uc744 \uc544\uc8fc \uc791\uac8c \uc124\uc815\ud588\uc74c\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0 (S5 \ucc38\uc870), linear scale \uacb0\uacfc\uc5d0\uc11c 10 us\uae4c\uc9c0 \uc628\ub3c4\uac00 \uae09\uaca9\ud788 \uc0c1\uc2b9\ud55c \uc774\ud6c4, \uc810\ucc28 \uc628\ub3c4 \ubcc0\ud654\uac00 \uc801\uc5b4\uc9c0\uba70 20 us \uc774\ud6c4\ubd80\ud130 \uc628\ub3c4 \ubcc0\ud654\uac00 \uac70\uc758 0\uc5d0 \uc218\ub834\ud55c \uac83 \uac19\uc740 \uacb0\uacfc\ub97c \uc5bb\uc5c8\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc, dT(t=50 us)\uc758 \uac12\uc744 \ubcf4\uba74, \uc2e4\uc81c dT\uac00 1\ubcf4\ub2e4 \uc791\uc740 \uac83\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \uc2dc\ubbac\ub808\uc774\uc158\uc740 20 us\ubd80\ud130 1000 us\uae4c\uc9c0 \ucc9c\ucc9c\ud788 \uc99d\uac00\ud558\uba70 1000 us\uc5d0\uc11c \uacc4\uc0b0\ub418\uace0 \ub098\uc11c\uc57c \uc885\ub8cc\ub418\uc5c8\uc2b5\ub2c8\ub2e4.&lt;\/p&gt;&lt;p&gt;\uc2dc\uac04\uc5d0 \ub530\ub978 dT \uacc4\uc0b0 \uacb0\uacfc\ub97c \uc694\uc57d\ud558\uba74, 20 us\uc5d0\uc11c\uc758 dT \uac12\uc740 0.95 \uc600\uace0, \ub098\uba38\uc9c0 0.05 \ub9cc\ud07c\uc758 \uc0c1\uc2b9\uc740 \ub098\uba38\uc9c0 \uc2dc\uac04\ub3d9\uc548 \uc9c4\ud589\uc774\ub418\uc5c8\uc2b5\ub2c8\ub2e4.&lt;\/p&gt;&lt;p&gt;\uc628\ub3c4 \ubcc0\ud654\uac00 \uc218\ub834\ud558\ub294\ub370 \ucca8\ubd80\ud55c \uacb0\uacfc\ucc98\ub7fc, S5\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c \ub2e4\ub978 \uc870\uac74\uc5d0\uc11c\ub3c4 \uc218\ub834\ud558\ub294\ub370 \ub9ce\uc740 \uc2dc\uac04\uc774 \uc18c\uc694\ub418\ub294\ub370, \uadf8 \uc774\uc720\ub97c \uc54c\uace0 \uc2f6\uc2b5\ub2c8\ub2e4.&nbsp;&lt;\/p&gt;&lt;p&gt;\ucc38\uace0\ub85c, \uc2e4\uc81c \uc81c\uc791\ub41c thermo-optic phase shifter \uc18c\uc790\uc758 rise time\uc740 \ud3c9\uade0\uc801\uc73c\ub85c 7 us \uc815\ub3c4\ub85c \uce21\uc815\ub418\uc5c8\ub294\ub370, transient \uc2dc\ubbac\ub808\uc774\uc158\uc5d0\uc11c 1000 us\uc758 time span\uc774 \uacc4\uc0b0\uc5d0 \ud544\uc694\ud558\ub2e4\ub294 \uc810\uc774 \ub0a9\ub4dd\ud558\uae30 \uc5b4\ub824\uc6b4 \uacb0\uacfc\ub77c \uc0dd\uac01\ud558\uc5ec, \uc5b4\ub5a4 \ud30c\ub77c\ubbf8\ud130\ub97c \uc810\uac80\ud558\ub294\uac8c \uc88b\uc744\uc9c0 \ubb38\uc758\ub4dc\ub9bd\ub2c8\ub2e4.&nbsp;&lt;\/p&gt;&lt;p&gt;\uac10\uc0ac\ud569\ub2c8\ub2e4.&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-437510","topic","type-topic","status-publish","hentry","topic-tag-LumericalHEAT-1","topic-tag-simulation","topic-tag-transient"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27834"],"_bbp_topic_id":["437510"],"_bbp_subscription":["257364","245288"],"_bbp_author_ip":["114.70.9.219"],"_bbp_last_reply_id":["437729"],"_bbp_last_active_id":["437729"],"_bbp_last_active_time":["2025-07-25 07:08:45"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["257364","245288"],"_btv_view_count":["5955"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1753382629:473055"],"_bbp_notification_enabled":["473055"]},"test":"seojh322unist-ac-kr"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/437510","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\/437510\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=437510"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}