{"id":161791,"date":"2023-01-25T07:16:57","date_gmt":"2023-01-25T07:16:57","guid":{"rendered":"\/knowledge\/forums\/topic\/what-is-the-scheme-command-to-ignore-the-secondary-gradient-calculation-for-heat-flux\/"},"modified":"2023-07-31T12:35:54","modified_gmt":"2023-07-31T12:35:54","slug":"what-is-the-scheme-command-to-ignore-the-secondary-gradient-calculation-for-heat-flux","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-is-the-scheme-command-to-ignore-the-secondary-gradient-calculation-for-heat-flux\/","title":{"rendered":"What is the scheme command to ignore the secondary gradient calculation for Heat Flux?"},"content":{"rendered":"<p>Use the Scheme commands below to ignore the secondary gradient of Heat Flux.  It is effective in improving convergence of the energy equation in cases with high skewness of the mesh.  For the entire region:  (rpsetvar &#8216;temperature\/secondary-gradient? #f)  Only for the Wall:  \/solve\/set\/expert\/use-alternate-formulation-for-wall-temperature? Yes  Only for Shell Conduction:  (rpsetvar &#8216;temperature\/shell-secondary-gradient? #f)   Note the parentheses are required for the input.<\/p>\n","protected":false},"template":"","class_list":["post-161791","topic","type-topic","status-publish","hentry","topic-tag-fluent","topic-tag-fluid-dynamics","topic-tag-heat-transfer-and-radiation","topic-tag-heat-transfer","topic-tag-other"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Use the Scheme commands below to ignore the secondary gradient of Heat Flux. It is effective in improving convergence of the energy equation in cases with high skewness of the mesh. For the entire region: (rpsetvar &#039;temperature\/secondary-gradient? #f) Only for the Wall: \/solve\/set\/expert\/use-alternate-formulation-for-wall-temperature? Yes Only for Shell Conduction: (rpsetvar &#039;temperature\/shell-secondary-gradient? #f) Note the parentheses are\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-is-the-scheme-command-to-ignore-the-secondary-gradient-calculation-for-heat-flux\/\" \/>\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=\"What is the scheme command to ignore the secondary gradient calculation for Heat Flux? | Ansys Knowledge\" \/>\n\t\t<meta property=\"og:description\" content=\"Use the Scheme commands below to ignore the secondary gradient of Heat Flux. It is effective in improving convergence of the energy equation in cases with high skewness of the mesh. For the entire region: (rpsetvar &#039;temperature\/secondary-gradient? #f) Only for the Wall: \/solve\/set\/expert\/use-alternate-formulation-for-wall-temperature? Yes Only for Shell Conduction: (rpsetvar &#039;temperature\/shell-secondary-gradient? #f) Note the parentheses are\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-is-the-scheme-command-to-ignore-the-secondary-gradient-calculation-for-heat-flux\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-01-25T07:16:57+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-07-31T12:35:54+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"What is the scheme command to ignore the secondary gradient calculation for Heat Flux? | Ansys Knowledge\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Use the Scheme commands below to ignore the secondary gradient of Heat Flux. It is effective in improving convergence of the energy equation in cases with high skewness of the mesh. For the entire region: (rpsetvar &#039;temperature\/secondary-gradient? #f) Only for the Wall: \/solve\/set\/expert\/use-alternate-formulation-for-wall-temperature? Yes Only for Shell Conduction: (rpsetvar &#039;temperature\/shell-secondary-gradient? #f) Note the parentheses are\" \/>\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\\\/what-is-the-scheme-command-to-ignore-the-secondary-gradient-calculation-for-heat-flux\\\/#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\\\/fluent\\\/#listItem\",\"name\":\"fluent\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"position\":3,\"name\":\"fluent\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/what-is-the-scheme-command-to-ignore-the-secondary-gradient-calculation-for-heat-flux\\\/#listItem\",\"name\":\"What is the scheme command to ignore the secondary gradient calculation for Heat Flux?\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/what-is-the-scheme-command-to-ignore-the-secondary-gradient-calculation-for-heat-flux\\\/#listItem\",\"position\":4,\"name\":\"What is the scheme command to ignore the secondary gradient calculation for Heat Flux?\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"name\":\"fluent\"}}]},{\"@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\\\/what-is-the-scheme-command-to-ignore-the-secondary-gradient-calculation-for-heat-flux\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/what-is-the-scheme-command-to-ignore-the-secondary-gradient-calculation-for-heat-flux\\\/\",\"name\":\"What is the scheme command to ignore the secondary gradient calculation for Heat Flux? | Ansys Knowledge\",\"description\":\"Use the Scheme commands below to ignore the secondary gradient of Heat Flux. 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It is effective in improving convergence of the energy equation in cases with high skewness of the mesh. For the entire region: (rpsetvar 'temperature\/secondary-gradient? #f) Only for the Wall: \/solve\/set\/expert\/use-alternate-formulation-for-wall-temperature? 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