{"id":425955,"date":"2025-03-17T18:44:49","date_gmt":"2025-03-17T18:44:49","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mixing-plane-model\/"},"modified":"2025-03-17T18:44:49","modified_gmt":"2025-03-17T18:44:49","slug":"mixing-plane-model","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mixing-plane-model\/","title":{"rendered":"Mixing Plane Model"},"content":{"rendered":"<p>&lt;p&gt;Hello, I am trying to simulate an axial fan in a duct, and would like to solve as steady state using mixing planes between the rotating blade region and stationary duct regions. I am trying to follow along with the following example videos&lt;\/p&gt;&lt;p&gt;https:\/\/www.youtube.com\/watch?v=3wUv_iT6jpA&lt;\/p&gt;&lt;p&gt;https:\/\/www.youtube.com\/watch?v=tYAfIY0iU24&lt;\/p&gt;&lt;p&gt;but I do not see the option for &#8220;mixing planes&#8230;&#8221; under mesh models (see attached). Is this option not available anymore in fluent? In the videos above it does not seem they had to define any turbomachinery topology to access the mixing plane option. What am I missing? In one example, they imported two case files. In another, it is one mesh file with two fluid zones, one rotating and one stationary which is what I have. Thanks!&lt;\/p&gt;&lt;p&gt;Kevin&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/17-03-2025-1742236781-mixing_plane.png\" alt=\"\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-425955","topic","type-topic","status-publish","hentry","topic-tag-fluent","topic-tag-mixing-plane-1"],"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 trying to simulate an axial fan in a duct, and would like to solve as steady state using mixing planes between the rotating blade region and stationary duct regions. I am trying to follow along with the following example videoshttps:\/\/www.youtube.com\/watch?v=3wUv_iT6jpAhttps:\/\/www.youtube.com\/watch?v=tYAfIY0iU24but I do not see the option for &quot;mixing planes...&quot; under mesh models\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mixing-plane-model\/\" \/>\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=\"Mixing Plane Model | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hello, I am trying to simulate an axial fan in a duct, and would like to solve as steady state using mixing planes between the rotating blade region and stationary duct regions. I am trying to follow along with the following example videoshttps:\/\/www.youtube.com\/watch?v=3wUv_iT6jpAhttps:\/\/www.youtube.com\/watch?v=tYAfIY0iU24but I do not see the option for &quot;mixing planes...&quot; under mesh models\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mixing-plane-model\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2025-03-17T18:44:49+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2025-03-17T18:44:49+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Mixing Plane Model | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hello, I am trying to simulate an axial fan in a duct, and would like to solve as steady state using mixing planes between the rotating blade region and stationary duct regions. I am trying to follow along with the following example videoshttps:\/\/www.youtube.com\/watch?v=3wUv_iT6jpAhttps:\/\/www.youtube.com\/watch?v=tYAfIY0iU24but I do not see the option for &quot;mixing planes...&quot; under mesh models\" \/>\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\\\/mixing-plane-model\\\/#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-tag\\\/fluent\\\/#listItem\",\"name\":\"fluent\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"position\":3,\"name\":\"fluent\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/fluent\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/mixing-plane-model\\\/#listItem\",\"name\":\"Mixing Plane Model\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/mixing-plane-model\\\/#listItem\",\"position\":4,\"name\":\"Mixing Plane Model\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/fluent\\\/#listItem\",\"name\":\"fluent\"}}]},{\"@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\\\/mixing-plane-model\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/mixing-plane-model\\\/\",\"name\":\"Mixing Plane Model | Ansys Learning Forum\",\"description\":\"Hello, I am trying to simulate an axial fan in a duct, and would like to solve as steady state using mixing planes between the rotating blade region and stationary duct regions. 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