{"id":294433,"date":"2023-07-24T06:37:35","date_gmt":"2023-07-24T06:37:35","guid":{"rendered":"\/forum\/forums\/reply\/294433\/"},"modified":"2023-07-24T06:43:12","modified_gmt":"2023-07-24T06:43:12","slug":"294433","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/294433\/","title":{"rendered":"Reply To: Pressure direction on a shell"},"content":{"rendered":"<p>&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;I&rsquo;m getting Cp values from OpenVSP, where I&rsquo;m running my CFD. I&rsquo;ve been turning it into absolute pressure using this formula: https:\/\/en.wikipedia.org\/wiki\/Pressure_coefficient#Definition&lt;\/p&gt;&lt;p&gt;In SpaceClaim, the normals are pointing away from the surfaces of the wing, so it seems that pressure on the bottom surface would need to be turned negative, and on the top would need to stay positive, if I&rsquo;m understanding you correctly?&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-294433","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=\"I\u2019m getting Cp values from OpenVSP, where I\u2019m running my CFD. I\u2019ve been turning it into absolute pressure using this formula: https:\/\/en.wikipedia.org\/wiki\/Pressure_coefficient#DefinitionIn SpaceClaim, the normals are pointing away from the surfaces of the wing, so it seems that pressure on the bottom surface would need to be turned negative, and on the top would need\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/294433\/\" \/>\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: Pressure direction on a shell | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"I\u2019m getting Cp values from OpenVSP, where I\u2019m running my CFD. I\u2019ve been turning it into absolute pressure using this formula: https:\/\/en.wikipedia.org\/wiki\/Pressure_coefficient#DefinitionIn SpaceClaim, the normals are pointing away from the surfaces of the wing, so it seems that pressure on the bottom surface would need to be turned negative, and on the top would need\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/294433\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-07-24T06:37:35+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-07-24T06:43:12+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Pressure direction on a shell | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"I\u2019m getting Cp values from OpenVSP, where I\u2019m running my CFD. I\u2019ve been turning it into absolute pressure using this formula: https:\/\/en.wikipedia.org\/wiki\/Pressure_coefficient#DefinitionIn SpaceClaim, the normals are pointing away from the surfaces of the wing, so it seems that pressure on the bottom surface would need to be turned negative, and on the top would need\" \/>\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\\\/294433\\\/#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\\\/294433\\\/#listItem\",\"name\":\"Reply To: Pressure direction on a shell\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/294433\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Pressure direction on a shell\",\"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\\\/294433\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/294433\\\/\",\"name\":\"Reply To: Pressure direction on a shell | Ansys Learning Forum\",\"description\":\"I\\u2019m getting Cp values from OpenVSP, where I\\u2019m running my CFD. I\\u2019ve been turning it into absolute pressure using this formula: https:\\\/\\\/en.wikipedia.org\\\/wiki\\\/Pressure_coefficient#DefinitionIn SpaceClaim, the normals are pointing away from the surfaces of the wing, so it seems that pressure on the bottom surface would need to be turned negative, and on the top would need\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/294433\\\/#breadcrumblist\"},\"datePublished\":\"2023-07-24T06:37:35+00:00\",\"dateModified\":\"2023-07-24T06:43:12+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: Pressure direction on a shell | Ansys Learning Forum","description":"I\u2019m getting Cp values from OpenVSP, where I\u2019m running my CFD. I\u2019ve been turning it into absolute pressure using this formula: https:\/\/en.wikipedia.org\/wiki\/Pressure_coefficient#DefinitionIn SpaceClaim, the normals are pointing away from the surfaces of the wing, so it seems that pressure on the bottom surface would need to be turned negative, and on the top would need","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/294433\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/294433\/#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\/294433\/#listItem","name":"Reply To: Pressure direction on a shell"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/294433\/#listItem","position":2,"name":"Reply To: Pressure direction on a shell","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\/294433\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/294433\/","name":"Reply To: Pressure direction on a shell | Ansys Learning Forum","description":"I\u2019m getting Cp values from OpenVSP, where I\u2019m running my CFD. I\u2019ve been turning it into absolute pressure using this formula: https:\/\/en.wikipedia.org\/wiki\/Pressure_coefficient#DefinitionIn SpaceClaim, the normals are pointing away from the surfaces of the wing, so it seems that pressure on the bottom surface would need to be turned negative, and on the top would need","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/294433\/#breadcrumblist"},"datePublished":"2023-07-24T06:37:35+00:00","dateModified":"2023-07-24T06:43:12+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: Pressure direction on a shell | Ansys Learning Forum","og:description":"I\u2019m getting Cp values from OpenVSP, where I\u2019m running my CFD. I\u2019ve been turning it into absolute pressure using this formula: https:\/\/en.wikipedia.org\/wiki\/Pressure_coefficient#DefinitionIn SpaceClaim, the normals are pointing away from the surfaces of the wing, so it seems that pressure on the bottom surface would need to be turned negative, and on the top would need","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/294433\/","article:published_time":"2023-07-24T06:37:35+00:00","article:modified_time":"2023-07-24T06:43:12+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Pressure direction on a shell | Ansys Learning Forum","twitter:description":"I\u2019m getting Cp values from OpenVSP, where I\u2019m running my CFD. I\u2019ve been turning it into absolute pressure using this formula: https:\/\/en.wikipedia.org\/wiki\/Pressure_coefficient#DefinitionIn SpaceClaim, the normals are pointing away from the surfaces of the wing, so it seems that pressure on the bottom surface would need to be turned negative, and on the top would need"},"aioseo_meta_data":{"post_id":"294433","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 17:57:39","updated":"2026-09-19 23:26:39","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\tReply To: Pressure direction on a shell\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Reply To: Pressure direction on a shell","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/294433\/"}],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/294433","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/294433\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=294433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}