{"id":159796,"date":"2022-09-26T09:59:07","date_gmt":"2022-09-26T09:59:07","guid":{"rendered":"\/knowledge\/forums\/topic\/discovery-aim-calculating-heat-transfer-coefficient-htc\/"},"modified":"2023-08-16T06:33:00","modified_gmt":"2023-08-16T06:33:00","slug":"discovery-aim-calculating-heat-transfer-coefficient-htc","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/discovery-aim-calculating-heat-transfer-coefficient-htc\/","title":{"rendered":"Discovery AIM &#8211; Calculating Heat Transfer Coefficient (HTC)"},"content":{"rendered":"<h1 class=\"topic__title\" class=\"topic__title\"  id=\"DISCOVERY-AIM-CALCULATING-HEAT-TRANSFER-COEFFICIENT-HTC\">Discovery AIM &#8211; Calculating Heat Transfer Coefficient (HTC)<\/h1>\n<p>In Discovery AIM, there is no inbuilt variable for calculating\u00a0Heat Transfer Coefficient (HTC). However, you can create an expression for calculating this variable.<\/p>\n<p>The following expression can be used to get the Average\u00a0Heat Transfer Coefficient (HTC) value:<\/p>\n<p><em>Average(SurfaceHeatFlux,GetSelectionSet(&#8220;@int1&#8243;),&#8221;Area&#8221;)\/(Average(Temperature, GetSelectionSet(&#8220;@int1&#8243;),&#8221;Area&#8221;) &#8211; 298*1[K])<\/em><\/p>\n<p>For this to work, it is required to first create a selection set comprising of the surfaces where HTC is to be calculated. In this example, the selection set is named as &#8220;int1&#8221;.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-155488\" src=\"\/knowledge\/wp-content\/uploads\/sites\/4\/2022\/08\/OK-35-1.jpg\" alt=\" width=\"604\" height=\"412\" \/><\/p>\n<p>Non averaged results can be plotted using contour plot and using the expression &#8220;abs(SurfaceHeatFlux\/(Temperature &#8211; 273 [K]))&#8221;. You can replace 273 by the reference temperature you have. <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-155489\" src=\"\/knowledge\/wp-content\/uploads\/sites\/4\/2022\/08\/OK-35-2.jpg\" alt=\" width=\"860\" height=\"293\" \/><\/p>\n<p>This can be easily exported to CSV using the option located at the top right corner of the contour panel. This exported CSV file will contain results at node value.<\/p>\n","protected":false},"template":"","class_list":["post-159796","topic","type-topic","status-publish","hentry","topic-tag-aim-faq","topic-tag-fluids","topic-tag-thermal"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Discovery AIM - Calculating Heat Transfer Coefficient (HTC) In Discovery AIM, there is no inbuilt variable for calculating Heat Transfer Coefficient (HTC). However, you can create an expression for calculating this variable. The following expression can be used to get the Average Heat Transfer Coefficient (HTC) value: Average(SurfaceHeatFlux,GetSelectionSet(&quot;@int1&quot;),&quot;Area&quot;)\/(Average(Temperature, GetSelectionSet(&quot;@int1&quot;),&quot;Area&quot;) - 298*1[K]) For this to work, it is\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/discovery-aim-calculating-heat-transfer-coefficient-htc\/\" \/>\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 Knowledge | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Discovery AIM \u2013 Calculating Heat Transfer Coefficient (HTC) | Ansys Knowledge\" \/>\n\t\t<meta property=\"og:description\" content=\"Discovery AIM - Calculating Heat Transfer Coefficient (HTC) In Discovery AIM, there is no inbuilt variable for calculating Heat Transfer Coefficient (HTC). However, you can create an expression for calculating this variable. The following expression can be used to get the Average Heat Transfer Coefficient (HTC) value: Average(SurfaceHeatFlux,GetSelectionSet(&quot;@int1&quot;),&quot;Area&quot;)\/(Average(Temperature, GetSelectionSet(&quot;@int1&quot;),&quot;Area&quot;) - 298*1[K]) For this to work, it is\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/discovery-aim-calculating-heat-transfer-coefficient-htc\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2022-09-26T09:59:07+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-08-16T06:33:00+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Discovery AIM \u2013 Calculating Heat Transfer Coefficient (HTC) | Ansys Knowledge\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Discovery AIM - Calculating Heat Transfer Coefficient (HTC) In Discovery AIM, there is no inbuilt variable for calculating Heat Transfer Coefficient (HTC). However, you can create an expression for calculating this variable. The following expression can be used to get the Average Heat Transfer Coefficient (HTC) value: Average(SurfaceHeatFlux,GetSelectionSet(&quot;@int1&quot;),&quot;Area&quot;)\/(Average(Temperature, GetSelectionSet(&quot;@int1&quot;),&quot;Area&quot;) - 298*1[K]) For this to work, it is\" \/>\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\\\/knowledge\\\/forums\\\/topic\\\/discovery-aim-calculating-heat-transfer-coefficient-htc\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/thermal\\\/#listItem\",\"name\":\"thermal\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/thermal\\\/#listItem\",\"position\":3,\"name\":\"thermal\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/thermal\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/discovery-aim-calculating-heat-transfer-coefficient-htc\\\/#listItem\",\"name\":\"Discovery AIM &#8211; Calculating Heat Transfer Coefficient (HTC)\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/discovery-aim-calculating-heat-transfer-coefficient-htc\\\/#listItem\",\"position\":4,\"name\":\"Discovery AIM &#8211; Calculating Heat Transfer Coefficient (HTC)\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/thermal\\\/#listItem\",\"name\":\"thermal\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#organization\",\"name\":\"Ansys Knowledge\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/discovery-aim-calculating-heat-transfer-coefficient-htc\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/discovery-aim-calculating-heat-transfer-coefficient-htc\\\/\",\"name\":\"Discovery AIM \\u2013 Calculating Heat Transfer Coefficient (HTC) | Ansys Knowledge\",\"description\":\"Discovery AIM - Calculating Heat Transfer Coefficient (HTC) In Discovery AIM, there is no inbuilt variable for calculating Heat Transfer Coefficient (HTC). However, you can create an expression for calculating this variable. 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However, you can create an expression for calculating this variable. The following expression can be used to get the Average Heat Transfer Coefficient (HTC) value: Average(SurfaceHeatFlux,GetSelectionSet(\"@int1\"),\"Area\")\/(Average(Temperature, GetSelectionSet(\"@int1\"),\"Area\") - 298*1[K]) For this to work, it is","canonical_url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/discovery-aim-calculating-heat-transfer-coefficient-htc\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/discovery-aim-calculating-heat-transfer-coefficient-htc\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/knowledge","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","position":2,"name":"Topics","item":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/thermal\/#listItem","name":"thermal"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/thermal\/#listItem","position":3,"name":"thermal","item":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/thermal\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/discovery-aim-calculating-heat-transfer-coefficient-htc\/#listItem","name":"Discovery AIM &#8211; Calculating Heat Transfer Coefficient (HTC)"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/discovery-aim-calculating-heat-transfer-coefficient-htc\/#listItem","position":4,"name":"Discovery AIM &#8211; Calculating Heat Transfer Coefficient (HTC)","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/thermal\/#listItem","name":"thermal"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#organization","name":"Ansys Knowledge","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/knowledge\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/discovery-aim-calculating-heat-transfer-coefficient-htc\/#webpage","url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/discovery-aim-calculating-heat-transfer-coefficient-htc\/","name":"Discovery AIM \u2013 Calculating Heat Transfer Coefficient (HTC) | Ansys Knowledge","description":"Discovery AIM - Calculating Heat Transfer Coefficient (HTC) In Discovery AIM, there is no inbuilt variable for calculating Heat Transfer Coefficient (HTC). However, you can create an expression for calculating this variable. The following expression can be used to get the Average Heat Transfer Coefficient (HTC) value: Average(SurfaceHeatFlux,GetSelectionSet(\"@int1\"),\"Area\")\/(Average(Temperature, GetSelectionSet(\"@int1\"),\"Area\") - 298*1[K]) For this to work, it is","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/discovery-aim-calculating-heat-transfer-coefficient-htc\/#breadcrumblist"},"datePublished":"2022-09-26T09:59:07+00:00","dateModified":"2023-08-16T06:33:00+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#website","url":"https:\/\/innovationspace.ansys.com\/knowledge\/","name":"Ansys Knowledge","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Knowledge | Ansys Innovation Space","og:type":"article","og:title":"Discovery AIM \u2013 Calculating Heat Transfer Coefficient (HTC) | Ansys Knowledge","og:description":"Discovery AIM - Calculating Heat Transfer Coefficient (HTC) In Discovery AIM, there is no inbuilt variable for calculating Heat Transfer Coefficient (HTC). However, you can create an expression for calculating this variable. The following expression can be used to get the Average Heat Transfer Coefficient (HTC) value: Average(SurfaceHeatFlux,GetSelectionSet(&quot;@int1&quot;),&quot;Area&quot;)\/(Average(Temperature, GetSelectionSet(&quot;@int1&quot;),&quot;Area&quot;) - 298*1[K]) For this to work, it is","og:url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/discovery-aim-calculating-heat-transfer-coefficient-htc\/","article:published_time":"2022-09-26T09:59:07+00:00","article:modified_time":"2023-08-16T06:33:00+00:00","twitter:card":"summary_large_image","twitter:title":"Discovery AIM \u2013 Calculating Heat Transfer Coefficient (HTC) | Ansys Knowledge","twitter:description":"Discovery AIM - Calculating Heat Transfer Coefficient (HTC) In Discovery AIM, there is no inbuilt variable for calculating Heat Transfer Coefficient (HTC). However, you can create an expression for calculating this variable. The following expression can be used to get the Average Heat Transfer Coefficient (HTC) value: Average(SurfaceHeatFlux,GetSelectionSet(&quot;@int1&quot;),&quot;Area&quot;)\/(Average(Temperature, GetSelectionSet(&quot;@int1&quot;),&quot;Area&quot;) - 298*1[K]) For this to work, it is"},"aioseo_meta_data":{"post_id":"159796","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2025-10-17 18:35:37","updated":"2026-07-29 04:57:56","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/knowledge\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/\" title=\"Topics\">Topics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/thermal\/\" title=\"thermal\">thermal<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tDiscovery AIM \u2013 Calculating Heat Transfer Coefficient (HTC)\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/knowledge"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/"},{"label":"thermal","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/thermal\/"},{"label":"Discovery AIM &#8211; Calculating Heat Transfer Coefficient (HTC)","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/discovery-aim-calculating-heat-transfer-coefficient-htc\/"}],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["09-13-2022  20:20:12"],"_bbp_forum_id":["159552"],"_btv_view_count":["1608"],"family":[""],"application_name":[""],"product_version":[""],"_bbp_likes_count":["1"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/159796","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/159796\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=159796"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}