{"id":39897,"date":"2020-01-02T03:25:46","date_gmt":"2020-01-02T03:25:46","guid":{"rendered":"\/forum\/forums\/topic\/cant-obtain-correct-temperature-contour-in-solids-in-fluent\/"},"modified":"2020-01-02T03:25:46","modified_gmt":"2020-01-02T03:25:46","slug":"cant-obtain-correct-temperature-contour-in-solids-in-fluent","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cant-obtain-correct-temperature-contour-in-solids-in-fluent\/","title":{"rendered":"Can’t obtain correct temperature contour in solids in Fluent"},"content":{"rendered":"

Hello guys,<\/p>\n

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I am trying to study the cooling of air that is flowing inside a steel pipe that sits in ambient air. I am examining the 2d-axisymmetric case.<\/p>\n

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I have modeled the 3 different domains (air-environment domain, steel pipe domain, air flowing domain) and have created a part of all three domains. <\/p>\n

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I have a great structured mesh.<\/p>\n

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I have set the temperature of the air-environment at 273 K through the Fixed Values option in the Domains tab. The air is still and not moving so I have not defined any inlets\/outlets.<\/p>\n

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I have set the steel pipe domain as a solid.<\/p>\n

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I have defined a velocity inlet (2 m\/s and 330 K) and pressure outlet (0 pascals, 300 K backflow temperature) for the domain of the air flowing inside the pipe<\/p>\n

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I get a wall and shadow wall for the outer surface of the pipe, which is set as Coupled. I have the same for the inner surface of the pipe.<\/p>\n

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I am running the simulation and I am getting a result but when I get a temperature contour of a cross-section of the whole pipe, I get a specific temperature for the whole surface of the pipe instead of a linear temperature gradient that drops from the ambient temperature at the outter surface of the pipe to the temperature of the flow at the inner surface. I am supposed to get a regular conduction temperature profile inside the wall but instead I get a specific temperature throughout it’s surface.<\/p>\n

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You can see the results here :<\/p>\n

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\"\"<\/p>\n

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Does anybody know the issue here? Any help is greatly appreciated since this is for my bachelor thesis.<\/p>\n

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I get expected profiles for the flow and the ambient air since the temperature is decreasing and increasing respectively, but I am getting a weird contour for the pipe.<\/p>\n

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Nino<\/p>\n

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Does anybody know what’s up with this? I am trying to get the temperature profile of the steel pipe without doing an FSI with Fluent and Static Thermal.<\/p>\n

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I even tested a regular wall with two air domains on each side, one hot and one cold, and I still don’t get a conduction profile, just a specific value of the temperature (a specific color in the contour). I have created and meshed the solid geometry of the wall.<\/p>\n

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Thanks!<\/p>\n","protected":false},"template":"","class_list":["post-39897","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["12076"],"_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":["3066"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["39897"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","171880"],"_bbp_voice_count":["2"],"_bbp_reply_count":["8"],"_bbp_last_reply_id":["101973"],"_bbp_last_active_id":["101973"],"_bbp_last_active_time":["2020-01-06 11:46:03"]},"test":"nino"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/39897","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\/39897\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=39897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}