{"id":38545,"date":"2019-10-24T18:05:37","date_gmt":"2019-10-24T18:05:37","guid":{"rendered":"\/forum\/forums\/topic\/conjugate-heat-transfer-analysis-block-in-a-hot-air-flow-channel\/"},"modified":"2019-10-24T18:05:37","modified_gmt":"2019-10-24T18:05:37","slug":"conjugate-heat-transfer-analysis-block-in-a-hot-air-flow-channel","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/conjugate-heat-transfer-analysis-block-in-a-hot-air-flow-channel\/","title":{"rendered":"Conjugate Heat Transfer Analysis – Block in a hot air flow channel"},"content":{"rendered":"

Hello all,<\/strong><\/span><\/p>\n

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I am trying to run a conjugate heat transfer analysis for a 2D system. I am trying to understand the temperature evolution profile of the blocks as hot air is blown across it. <\/p>\n

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\"Initial<\/p>\n

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As you can see, initially the temperature of the air is patched to be 500 and that of the block is around 300. I have modeled it with aluminium as the material. <\/p>\n

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When I run a steady state conjugate heat transfer analysis, I get results as shown below : <\/p>\n

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\"Steady<\/p>\n

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This makes sense since at steady state the block will eventually reach the temperature of the hot air blowing across it. <\/p>\n

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But when I run a transient simulation, my temperature profiles after a small interval of time are as shown below : <\/p>\n

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\"Transient\"<\/p>\n

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Zooming in further : <\/p>\n

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\"Zoomed\"<\/p>\n

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It looks like the thermal gradients only develop on the fluid side and not in the interior of the solid. I reran the simulation with a very high thermal conductivity and I still get the same result. Also – I probed the nodes to find the temperature values and those on the block still remain to be at 300 K. Is there something I am missing out in my simulation modeling  ? <\/p>\n

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Left end – Velocity Inlet <\/p>\n

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Right end – Pressure Outlet<\/p>\n

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Walls – Adiabatic <\/p>\n

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Block – Modeled with Aluminium (also modeled it with very high conductivity in second trail) <\/p>\n

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I look forward to your response. <\/p>\n

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Thanks ! <\/p>\n","protected":false},"template":"","class_list":["post-38545","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["10723"],"_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":["379"],"_bbp_subscription":["242160"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["38545"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","240","167695"],"_bbp_voice_count":["3"],"_bbp_reply_count":["8"],"_bbp_last_reply_id":["97390"],"_bbp_last_active_id":["97390"],"_bbp_last_active_time":["2019-10-30 12:09:20"]},"test":"cvish92"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/38545","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\/38545\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=38545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}