{"id":357641,"date":"2024-03-18T13:51:17","date_gmt":"2024-03-18T13:51:17","guid":{"rendered":"\/forum\/forums\/reply\/357641\/"},"modified":"2024-03-18T13:51:17","modified_gmt":"2024-03-18T13:51:17","slug":"357641","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/357641\/","title":{"rendered":"Reply To: Under low velocity, there is difference between hand calculation and simulation"},"content":{"rendered":"<p>&lt;p&gt;Here is the geometry of the simulation model. The outer diameter is 40 mm, and inner tube diameter is 10 mm. the length of tube is 400 mm.&lt;\/p&gt;&lt;p&gt;<a href=\"https:\/\/pic2.zhimg.com\/v2-38c681cb5fbe91510c5c372b07edbf65_b.png\"><img decoding=\"async\" src=\"https:\/\/pic2.zhimg.com\/v2-38c681cb5fbe91510c5c372b07edbf65_b.png\" \/><\/a>&lt;br&gt;The materials of fluid and solid.&lt;br&gt;&lt;br&gt;&lt;\/p&gt;&lt;p&gt;<a href=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/18-03-2024-1710768915-mceclip0.png\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/18-03-2024-1710768915-mceclip0.png\" \/><\/a>&lt;\/p&gt;&lt;p&gt;<a href=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/18-03-2024-1710768942-mceclip1.png\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/18-03-2024-1710768942-mceclip1.png\" \/><\/a>&lt;\/p&gt;&lt;p&gt;The settings for models and solution method are shown below:&nbsp;&lt;\/p&gt;&lt;p&gt;<a href=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/18-03-2024-1710769066-mceclip3.png\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/03\/18-03-2024-1710769066-mceclip3.png\" \/><\/a>&lt;\/p&gt;&lt;p&gt;The heat flux used in calculation (q&rdquo;) is from &ldquo;Report definitions-surface report-area weighted average-wall fluxes-total surface heat flux&rdquo;.&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-357641","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=\"Here is the geometry of the simulation model. The outer diameter is 40 mm, and inner tube diameter is 10 mm. the length of tube is 400 mm.The materials of fluid and solid.The settings for models and solution method are shown below: The heat flux used in calculation (q\u201d) is from \u201cReport definitions-surface report-area weighted average-wall\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/357641\/\" \/>\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: Under low velocity, there is difference between hand calculation and simulation | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Here is the geometry of the simulation model. The outer diameter is 40 mm, and inner tube diameter is 10 mm. the length of tube is 400 mm.The materials of fluid and solid.The settings for models and solution method are shown below: The heat flux used in calculation (q\u201d) is from \u201cReport definitions-surface report-area weighted average-wall\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/357641\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/pic2.zhimg.com\/v2-38c681cb5fbe91510c5c372b07edbf65_b.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/pic2.zhimg.com\/v2-38c681cb5fbe91510c5c372b07edbf65_b.png\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-03-18T13:51:17+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-03-18T13:51:17+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Under low velocity, there is difference between hand calculation and simulation | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Here is the geometry of the simulation model. The outer diameter is 40 mm, and inner tube diameter is 10 mm. the length of tube is 400 mm.The materials of fluid and solid.The settings for models and solution method are shown below: The heat flux used in calculation (q\u201d) is from \u201cReport definitions-surface report-area weighted average-wall\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/pic2.zhimg.com\/v2-38c681cb5fbe91510c5c372b07edbf65_b.png\" \/>\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\\\/357641\\\/#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\\\/357641\\\/#listItem\",\"name\":\"Reply To: Under low velocity, there is difference between hand calculation and simulation\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/357641\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Under low velocity, there is difference between hand calculation and simulation\",\"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\\\/357641\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/357641\\\/\",\"name\":\"Reply To: Under low velocity, there is difference between hand calculation and simulation | Ansys Learning Forum\",\"description\":\"Here is the geometry of the simulation model. The outer diameter is 40 mm, and inner tube diameter is 10 mm. the length of tube is 400 mm.The materials of fluid and solid.The settings for models and solution method are shown below: The heat flux used in calculation (q\\u201d) is from \\u201cReport definitions-surface report-area weighted average-wall\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/357641\\\/#breadcrumblist\"},\"datePublished\":\"2024-03-18T13:51:17+00:00\",\"dateModified\":\"2024-03-18T13:51:17+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: Under low velocity, there is difference between hand calculation and simulation | Ansys Learning Forum","description":"Here is the geometry of the simulation model. 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