{"id":319660,"date":"2023-11-27T23:38:25","date_gmt":"2023-11-27T23:38:25","guid":{"rendered":"\/forum\/forums\/topic\/fluent-beginner-question-hxs-in-fluent\/"},"modified":"2023-11-27T23:44:03","modified_gmt":"2023-11-27T23:44:03","slug":"fluent-beginner-question-hxs-in-fluent","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fluent-beginner-question-hxs-in-fluent\/","title":{"rendered":"Fluent Beginner Question &#8211; HXs in Fluent"},"content":{"rendered":"<p>Hello,<\/p>\n<p>I am attempting to simulate a heat exchanger in Fluent and am having difficulty. One side of the HX has a -100 W\/m2 known heat flux and the other sides of the HX are adiabatic. Flow is coming into the inlet at 0.053 m\/s and 20 C. The flow should exit at a temperature 5 degrees lower due to the heat flux but the temp is staying near constant in my model. What am I doing wrong??<\/p>\n<p>I have the inlet and outlet conditions specified, materials selected properly, and the BCs on the walls have been specified but there is still no heat transfer occurring from the fluid. Are there any common mistakes that I might be making with this simulation?&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-319660","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello,I am attempting to simulate a heat exchanger in Fluent and am having difficulty. One side of the HX has a -100 W\/m2 known heat flux and the other sides of the HX are adiabatic. Flow is coming into the inlet at 0.053 m\/s and 20 C. The flow should exit at a temperature 5\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fluent-beginner-question-hxs-in-fluent\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Fluent Beginner Question \u2013 HXs in Fluent | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hello,I am attempting to simulate a heat exchanger in Fluent and am having difficulty. One side of the HX has a -100 W\/m2 known heat flux and the other sides of the HX are adiabatic. Flow is coming into the inlet at 0.053 m\/s and 20 C. The flow should exit at a temperature 5\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fluent-beginner-question-hxs-in-fluent\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-11-27T23:38:25+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-11-27T23:44:03+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Fluent Beginner Question \u2013 HXs in Fluent | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hello,I am attempting to simulate a heat exchanger in Fluent and am having difficulty. One side of the HX has a -100 W\/m2 known heat flux and the other sides of the HX are adiabatic. Flow is coming into the inlet at 0.053 m\/s and 20 C. The flow should exit at a temperature 5\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/fluent-beginner-question-hxs-in-fluent\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/fluent-beginner-question-hxs-in-fluent\\\/#listItem\",\"name\":\"Fluent Beginner Question &#8211; HXs in Fluent\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/fluent-beginner-question-hxs-in-fluent\\\/#listItem\",\"position\":3,\"name\":\"Fluent Beginner Question &#8211; HXs in Fluent\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/fluent-beginner-question-hxs-in-fluent\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/fluent-beginner-question-hxs-in-fluent\\\/\",\"name\":\"Fluent Beginner Question \\u2013 HXs in Fluent | Ansys Learning Forum\",\"description\":\"Hello,I am attempting to simulate a heat exchanger in Fluent and am having difficulty. 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