{"id":392206,"date":"2024-10-31T10:18:23","date_gmt":"2024-10-31T10:18:23","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/392206\/"},"modified":"2024-10-31T10:18:23","modified_gmt":"2024-10-31T10:18:23","slug":"392206","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/392206\/","title":{"rendered":"Reply To: Heat transfer at inlets"},"content":{"rendered":"<p>&lt;p&gt;Hi, There will be diffusion anywhere there is a temperature gradient. &nbsp;The same applies to species transport with the diffusion determined by the species gradient.&lt;\/p&gt;&lt;p&gt;&lt;br&gt;We allow you to &nbsp;turn it off for inlets because for low velocity inlets the diffusion can be greater than the advection and so you get more heat in than you really want. &nbsp;Turning it off gives you more control over what is coming in. It would be unphysical to turn it off for an outlet. Nevertheless, for very low velocity inlets where the heat in (or species in) is critical, it is recommended not to use an inlet but a volumetric source.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-392206","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi, There will be diffusion anywhere there is a temperature gradient. The same applies to species transport with the diffusion determined by the species gradient.We allow you to turn it off for inlets because for low velocity inlets the diffusion can be greater than the advection and so you get more heat in than you\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/392206\/\" \/>\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=\"Reply To: Heat transfer at inlets | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hi, There will be diffusion anywhere there is a temperature gradient. The same applies to species transport with the diffusion determined by the species gradient.We allow you to turn it off for inlets because for low velocity inlets the diffusion can be greater than the advection and so you get more heat in than you\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/392206\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-10-31T10:18:23+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-10-31T10:18:23+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Heat transfer at inlets | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hi, There will be diffusion anywhere there is a temperature gradient. The same applies to species transport with the diffusion determined by the species gradient.We allow you to turn it off for inlets because for low velocity inlets the diffusion can be greater than the advection and so you get more heat in than you\" \/>\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\\\/reply\\\/392206\\\/#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\\\/forums\\\/reply\\\/392206\\\/#listItem\",\"name\":\"Reply To: Heat transfer at inlets\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/392206\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Heat transfer at inlets\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}}]},{\"@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\\\/reply\\\/392206\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/392206\\\/\",\"name\":\"Reply To: Heat transfer at inlets | Ansys Learning Forum\",\"description\":\"Hi, There will be diffusion anywhere there is a temperature gradient. The same applies to species transport with the diffusion determined by the species gradient.We allow you to turn it off for inlets because for low velocity inlets the diffusion can be greater than the advection and so you get more heat in than you\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/392206\\\/#breadcrumblist\"},\"datePublished\":\"2024-10-31T10:18:23+00:00\",\"dateModified\":\"2024-10-31T10:18:23+00:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Reply To: Heat transfer at inlets | Ansys Learning Forum","description":"Hi, There will be diffusion anywhere there is a temperature gradient. The same applies to species transport with the diffusion determined by the species gradient.We allow you to turn it off for inlets because for low velocity inlets the diffusion can be greater than the advection and so you get more heat in than you","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/392206\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/392206\/#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\/forums\/reply\/392206\/#listItem","name":"Reply To: Heat transfer at inlets"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/392206\/#listItem","position":2,"name":"Reply To: Heat transfer at inlets","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}}]},{"@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\/reply\/392206\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/392206\/","name":"Reply To: Heat transfer at inlets | Ansys Learning Forum","description":"Hi, There will be diffusion anywhere there is a temperature gradient. The same applies to species transport with the diffusion determined by the species gradient.We allow you to turn it off for inlets because for low velocity inlets the diffusion can be greater than the advection and so you get more heat in than you","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/392206\/#breadcrumblist"},"datePublished":"2024-10-31T10:18:23+00:00","dateModified":"2024-10-31T10:18:23+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/forum\/#website","url":"https:\/\/innovationspace.ansys.com\/forum\/","name":"Ansys Learning Forum","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Learning Forum | Ansys Innovation Space","og:type":"article","og:title":"Reply To: Heat transfer at inlets | Ansys Learning Forum","og:description":"Hi, There will be diffusion anywhere there is a temperature gradient. The same applies to species transport with the diffusion determined by the species gradient.We allow you to turn it off for inlets because for low velocity inlets the diffusion can be greater than the advection and so you get more heat in than you","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/392206\/","article:published_time":"2024-10-31T10:18:23+00:00","article:modified_time":"2024-10-31T10:18:23+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Heat transfer at inlets | Ansys Learning Forum","twitter:description":"Hi, There will be diffusion anywhere there is a temperature gradient. 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