{"id":362839,"date":"2024-04-18T04:50:48","date_gmt":"2024-04-18T04:50:48","guid":{"rendered":"\/forum\/forums\/topic\/viscosity-compressibility\/"},"modified":"2024-04-18T04:50:48","modified_gmt":"2024-04-18T04:50:48","slug":"viscosity-compressibility","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/viscosity-compressibility\/","title":{"rendered":"Viscosity compressibility"},"content":{"rendered":"<p>If I am doing a rocket nozzle flow using k-epsilon, realizable, should I be using the compresibility effects option? Not using it made the residuals oscillate and resulted in the first image. Turning it on resulted in the 2nd image. In both cases the flow looked bit different than I expected.<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/18-04-2024-1713415795-Screenshot 2024-04-17 155155.png\" alt=\"\"><\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/18-04-2024-1713415810-Screenshot 2024-04-17 191205.png\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-362839","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"If I am doing a rocket nozzle flow using k-epsilon, realizable, should I be using the compresibility effects option? Not using it made the residuals oscillate and resulted in the first image. Turning it on resulted in the 2nd image. In both cases the flow looked bit different than I expected.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/viscosity-compressibility\/\" \/>\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=\"Viscosity compressibility | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"If I am doing a rocket nozzle flow using k-epsilon, realizable, should I be using the compresibility effects option? Not using it made the residuals oscillate and resulted in the first image. Turning it on resulted in the 2nd image. In both cases the flow looked bit different than I expected.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/viscosity-compressibility\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/18-04-2024-1713415795-Screenshot%202024-04-17%20155155.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/18-04-2024-1713415795-Screenshot%202024-04-17%20155155.png\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-04-18T04:50:48+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-04-18T04:50:48+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Viscosity compressibility | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"If I am doing a rocket nozzle flow using k-epsilon, realizable, should I be using the compresibility effects option? Not using it made the residuals oscillate and resulted in the first image. Turning it on resulted in the 2nd image. In both cases the flow looked bit different than I expected.\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/18-04-2024-1713415795-Screenshot 2024-04-17 155155.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\\\/viscosity-compressibility\\\/#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\\\/viscosity-compressibility\\\/#listItem\",\"name\":\"Viscosity compressibility\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/viscosity-compressibility\\\/#listItem\",\"position\":3,\"name\":\"Viscosity compressibility\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}}]},{\"@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\\\/viscosity-compressibility\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/viscosity-compressibility\\\/\",\"name\":\"Viscosity compressibility | Ansys Learning Forum\",\"description\":\"If I am doing a rocket nozzle flow using k-epsilon, realizable, should I be using the compresibility effects option? Not using it made the residuals oscillate and resulted in the first image. Turning it on resulted in the 2nd image. In both cases the flow looked bit different than I expected.\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/viscosity-compressibility\\\/#breadcrumblist\"},\"datePublished\":\"2024-04-18T04:50:48+00:00\",\"dateModified\":\"2024-04-18T04:50:48+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":"Viscosity compressibility | Ansys Learning Forum","description":"If I am doing a rocket nozzle flow using k-epsilon, realizable, should I be using the compresibility effects option? Not using it made the residuals oscillate and resulted in the first image. Turning it on resulted in the 2nd image. In both cases the flow looked bit different than I expected.","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/viscosity-compressibility\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/viscosity-compressibility\/#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\/viscosity-compressibility\/#listItem","name":"Viscosity compressibility"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/viscosity-compressibility\/#listItem","position":3,"name":"Viscosity compressibility","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}}]},{"@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\/viscosity-compressibility\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/viscosity-compressibility\/","name":"Viscosity compressibility | Ansys Learning Forum","description":"If I am doing a rocket nozzle flow using k-epsilon, realizable, should I be using the compresibility effects option? Not using it made the residuals oscillate and resulted in the first image. Turning it on resulted in the 2nd image. In both cases the flow looked bit different than I expected.","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/viscosity-compressibility\/#breadcrumblist"},"datePublished":"2024-04-18T04:50:48+00:00","dateModified":"2024-04-18T04:50:48+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":"Viscosity compressibility | Ansys Learning Forum","og:description":"If I am doing a rocket nozzle flow using k-epsilon, realizable, should I be using the compresibility effects option? Not using it made the residuals oscillate and resulted in the first image. Turning it on resulted in the 2nd image. In both cases the flow looked bit different than I expected.","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/viscosity-compressibility\/","og:image":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/18-04-2024-1713415795-Screenshot%202024-04-17%20155155.png","og:image:secure_url":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/18-04-2024-1713415795-Screenshot%202024-04-17%20155155.png","article:published_time":"2024-04-18T04:50:48+00:00","article:modified_time":"2024-04-18T04:50:48+00:00","twitter:card":"summary_large_image","twitter:title":"Viscosity compressibility | Ansys Learning Forum","twitter:description":"If I am doing a rocket nozzle flow using k-epsilon, realizable, should I be using the compresibility effects option? Not using it made the residuals oscillate and resulted in the first image. Turning it on resulted in the 2nd image. In both cases the flow looked bit different than I expected.","twitter:image":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/18-04-2024-1713415795-Screenshot 2024-04-17 155155.png"},"aioseo_meta_data":{"post_id":"362839","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 16:46:40","updated":"2024-10-28 16:46:40","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\tViscosity compressibility\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":"Viscosity compressibility","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/viscosity-compressibility\/"}],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["343144","8124"],"_bbp_author_ip":["96.7.218.223"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["268"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["362839"],"_bbp_forum_id":["27792"],"_bbp_engagement":["8124","343144"],"_bbp_voice_count":["2"],"_bbp_reply_count":["7"],"_bbp_last_reply_id":["363133"],"_bbp_last_active_id":["363133"],"_bbp_last_active_time":["2024-04-19 06:53:28"]},"test":"zwernjaydengmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/362839","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\/362839\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=362839"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}