{"id":371113,"date":"2024-07-09T12:55:29","date_gmt":"2024-07-09T12:55:29","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/371113\/"},"modified":"2024-07-09T12:55:29","modified_gmt":"2024-07-09T12:55:29","slug":"371113","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/371113\/","title":{"rendered":"Reply To: UDF describing the relationship between pressure loss and mass flow rate"},"content":{"rendered":"<p>&lt;p&gt;Not easy as the data access macros are mostly velocity based as Fluent solves for momentum. The fluxes will be available, but you&#8217;d then potentially be messing with momentum sinks as you wouldn&#8217;t set a pressure loss.&nbsp;&lt;\/p&gt;&lt;p&gt;You may need to review what data you have and then rethink the modelling approach.&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-371113","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=\"Not easy as the data access macros are mostly velocity based as Fluent solves for momentum. The fluxes will be available, but you&#039;d then potentially be messing with momentum sinks as you wouldn&#039;t set a pressure loss. You may need to review what data you have and then rethink the modelling approach.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/371113\/\" \/>\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: UDF describing the relationship between pressure loss and mass flow rate | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Not easy as the data access macros are mostly velocity based as Fluent solves for momentum. The fluxes will be available, but you&#039;d then potentially be messing with momentum sinks as you wouldn&#039;t set a pressure loss. You may need to review what data you have and then rethink the modelling approach.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/371113\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-07-09T12:55:29+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-07-09T12:55:29+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: UDF describing the relationship between pressure loss and mass flow rate | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Not easy as the data access macros are mostly velocity based as Fluent solves for momentum. The fluxes will be available, but you&#039;d then potentially be messing with momentum sinks as you wouldn&#039;t set a pressure loss. You may need to review what data you have and then rethink the modelling approach.\" \/>\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\\\/371113\\\/#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\\\/371113\\\/#listItem\",\"name\":\"Reply To: UDF describing the relationship between pressure loss and mass flow rate\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/371113\\\/#listItem\",\"position\":2,\"name\":\"Reply To: UDF describing the relationship between pressure loss and mass flow rate\",\"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\\\/371113\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/371113\\\/\",\"name\":\"Reply To: UDF describing the relationship between pressure loss and mass flow rate | Ansys Learning Forum\",\"description\":\"Not easy as the data access macros are mostly velocity based as Fluent solves for momentum. The fluxes will be available, but you'd then potentially be messing with momentum sinks as you wouldn't set a pressure loss. 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