{"id":287501,"date":"2023-06-07T10:12:18","date_gmt":"2023-06-07T10:12:18","guid":{"rendered":"\/forum\/forums\/topic\/understanding-the-post-cfd-pressure\/"},"modified":"2023-06-07T10:12:18","modified_gmt":"2023-06-07T10:12:18","slug":"understanding-the-post-cfd-pressure","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/understanding-the-post-cfd-pressure\/","title":{"rendered":"Understanding the Post CFD Pressure"},"content":{"rendered":"<p>As per the definination in the ansys manual<\/p>\n<p>Abs. Pressure = Operting Press + Guage Pressure but in the case of incompressible fluid or fluid with constant density, must not used the operting pressure. In that case, the results we see on the Post CFD results must be Guage pressure = abs pressure.&nbsp;<\/p>\n<p>I am not sure, I am getting negative pressure at the outlet, whereas my outlet is at the 0 psig&nbsp; and my inlet is at 25psi gauge.<\/p>\n<p>What are the possible reason for getting the negative pressure in the system? Meshing issue, boundary condition, or fluid properties (using water).&nbsp;<\/p>\n<p>&nbsp;<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/07-06-2023-1686132638-mceclip0.png\"><\/p>\n","protected":false},"template":"","class_list":["post-287501","topic","type-topic","status-closed","hentry","topic-tag-absolute-pressure-1","topic-tag-cfd-post","topic-tag-fluid","topic-tag-gauge-pressure","topic-tag-meshing"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"As per the definination in the ansys manualAbs. Pressure = Operting Press + Guage Pressure but in the case of incompressible fluid or fluid with constant density, must not used the operting pressure. In that case, the results we see on the Post CFD results must be Guage pressure = abs pressure. I am not sure,\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/understanding-the-post-cfd-pressure\/\" \/>\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=\"Understanding the Post CFD Pressure | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"As per the definination in the ansys manualAbs. Pressure = Operting Press + Guage Pressure but in the case of incompressible fluid or fluid with constant density, must not used the operting pressure. In that case, the results we see on the Post CFD results must be Guage pressure = abs pressure. I am not sure,\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/understanding-the-post-cfd-pressure\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/07-06-2023-1686132638-mceclip0.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/07-06-2023-1686132638-mceclip0.png\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-06-07T10:12:18+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-06-07T10:12:18+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Understanding the Post CFD Pressure | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"As per the definination in the ansys manualAbs. Pressure = Operting Press + Guage Pressure but in the case of incompressible fluid or fluid with constant density, must not used the operting pressure. In that case, the results we see on the Post CFD results must be Guage pressure = abs pressure. I am not sure,\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/07-06-2023-1686132638-mceclip0.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\\\/topic\\\/understanding-the-post-cfd-pressure\\\/#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\\\/cfd-post\\\/#listItem\",\"name\":\"cfd-post\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/cfd-post\\\/#listItem\",\"position\":3,\"name\":\"cfd-post\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/cfd-post\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/understanding-the-post-cfd-pressure\\\/#listItem\",\"name\":\"Understanding the Post CFD Pressure\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/understanding-the-post-cfd-pressure\\\/#listItem\",\"position\":4,\"name\":\"Understanding the Post CFD Pressure\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/cfd-post\\\/#listItem\",\"name\":\"cfd-post\"}}]},{\"@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\\\/understanding-the-post-cfd-pressure\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/understanding-the-post-cfd-pressure\\\/\",\"name\":\"Understanding the Post CFD Pressure | Ansys Learning Forum\",\"description\":\"As per the definination in the ansys manualAbs. Pressure = Operting Press + Guage Pressure but in the case of incompressible fluid or fluid with constant density, must not used the operting pressure. In that case, the results we see on the Post CFD results must be Guage pressure = abs pressure. I am not sure,\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/understanding-the-post-cfd-pressure\\\/#breadcrumblist\"},\"datePublished\":\"2023-06-07T10:12:18+00:00\",\"dateModified\":\"2023-06-07T10:12:18+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":"Understanding the Post CFD Pressure | Ansys Learning Forum","description":"As per the definination in the ansys manualAbs. Pressure = Operting Press + Guage Pressure but in the case of incompressible fluid or fluid with constant density, must not used the operting pressure. In that case, the results we see on the Post CFD results must be Guage pressure = abs pressure. I am not sure,","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/understanding-the-post-cfd-pressure\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/understanding-the-post-cfd-pressure\/#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\/cfd-post\/#listItem","name":"cfd-post"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/cfd-post\/#listItem","position":3,"name":"cfd-post","item":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/cfd-post\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/understanding-the-post-cfd-pressure\/#listItem","name":"Understanding the Post CFD Pressure"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/understanding-the-post-cfd-pressure\/#listItem","position":4,"name":"Understanding the Post CFD Pressure","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/cfd-post\/#listItem","name":"cfd-post"}}]},{"@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\/understanding-the-post-cfd-pressure\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/understanding-the-post-cfd-pressure\/","name":"Understanding the Post CFD Pressure | Ansys Learning Forum","description":"As per the definination in the ansys manualAbs. Pressure = Operting Press + Guage Pressure but in the case of incompressible fluid or fluid with constant density, must not used the operting pressure. In that case, the results we see on the Post CFD results must be Guage pressure = abs pressure. I am not sure,","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/understanding-the-post-cfd-pressure\/#breadcrumblist"},"datePublished":"2023-06-07T10:12:18+00:00","dateModified":"2023-06-07T10:12:18+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":"Understanding the Post CFD Pressure | Ansys Learning Forum","og:description":"As per the definination in the ansys manualAbs. Pressure = Operting Press + Guage Pressure but in the case of incompressible fluid or fluid with constant density, must not used the operting pressure. In that case, the results we see on the Post CFD results must be Guage pressure = abs pressure. I am not sure,","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/understanding-the-post-cfd-pressure\/","og:image":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/07-06-2023-1686132638-mceclip0.png","og:image:secure_url":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/07-06-2023-1686132638-mceclip0.png","article:published_time":"2023-06-07T10:12:18+00:00","article:modified_time":"2023-06-07T10:12:18+00:00","twitter:card":"summary_large_image","twitter:title":"Understanding the Post CFD Pressure | Ansys Learning Forum","twitter:description":"As per the definination in the ansys manualAbs. Pressure = Operting Press + Guage Pressure but in the case of incompressible fluid or fluid with constant density, must not used the operting pressure. In that case, the results we see on the Post CFD results must be Guage pressure = abs pressure. I am not sure,","twitter:image":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/07-06-2023-1686132638-mceclip0.png"},"aioseo_meta_data":{"post_id":"287501","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"content","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":true,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2024-10-28 18:05:11","updated":"2024-10-28 18:05:11","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/topics\/\" title=\"Topics\">Topics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/cfd-post\/\" title=\"cfd-post\">cfd-post<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tUnderstanding the Post CFD Pressure\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/forum\/topics\/"},{"label":"cfd-post","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/cfd-post\/"},{"label":"Understanding the Post CFD Pressure","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/understanding-the-post-cfd-pressure\/"}],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["166775","18096"],"_bbp_author_ip":["168.143.243.14"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["4078"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["287501"],"_bbp_forum_id":["27792"],"_bbp_engagement":["18096","166775"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["1"],"_bbp_last_reply_id":["287770"],"_bbp_last_active_id":["287770"],"_bbp_last_active_time":["2023-06-08 15:43:10"]},"test":"88134c33056105b8e0ece9694a640e55816f65a4"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/287501","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/287501\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=287501"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}