{"id":314346,"date":"2023-11-01T14:19:04","date_gmt":"2023-11-01T14:19:04","guid":{"rendered":"\/forum\/forums\/topic\/mesh-independence-study-3\/"},"modified":"2023-11-03T16:27:50","modified_gmt":"2023-11-03T16:27:50","slug":"mesh-independence-study-3","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mesh-independence-study-3\/","title":{"rendered":"Mesh Independence study"},"content":{"rendered":"<p>Hi to all,<\/p>\n<p>I am working on a 3D airfoil. Currently, I am doing a mesh independence study to assess the dependence of the simulation results.<br \/>For this purpose, I plot the two parameters CL and CD when calculating. My solver is Fluent and I use <em>K-W SST<\/em> turbulence model. My mesh is the structure that I produced in icem-cfd.&nbsp;<br \/>I first started with a <em>552K<\/em> cell mesh with&nbsp; <em>Y+ &lt;1<\/em> , and the residuals converged very well. which is according to the following figure:<\/p>\n<p style=\"padding-left: 80px\"><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/11\/01-11-2023-1698847768-w1.PNG\" alt=\"\" width=\"751\" height=\"375\"><\/p>\n<p style=\"padding-left: 80px\">&nbsp;<\/p>\n<p>Now, I increased the number of grid cells to 1,263,000 cells, but unfortunately, this time, the residuals fluctuate strongly and do not intend to converge, and I also receive the message (Stabilizing pressure coupled to enhance linear solver robustness.) repeatedly when solving, which is as follows:<\/p>\n<p style=\"padding-left: 80px\"><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/11\/01-11-2023-1698847844-y3.PNG\" alt=\"\" width=\"771\" height=\"599\"><\/p>\n<p style=\"padding-left: 80px\">I really wonder why this is happening. To create a new mesh, I did not change the growth rate of the block lines at all, and only increased the number of nodes of the block lines, and at the end, I checked the mesh quality parameters, which were very good.<\/p>\n<p>I was very tired and disappointed.<\/p>\n<p>what is happening? Can anyone help me to solve the problem?<\/p>\n<p>If someone helps me, I will thank you a thousand times and I wish him health and well-being from the bottom of my heart.<\/p>\n<p>Regards<\/p>\n","protected":false},"template":"","class_list":["post-314346","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=\"Hi to all,I am working on a 3D airfoil. Currently, I am doing a mesh independence study to assess the dependence of the simulation results.For this purpose, I plot the two parameters CL and CD when calculating. My solver is Fluent and I use K-W SST turbulence model. My mesh is the structure that I\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mesh-independence-study-3\/\" \/>\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=\"Mesh Independence study | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hi to all,I am working on a 3D airfoil. Currently, I am doing a mesh independence study to assess the dependence of the simulation results.For this purpose, I plot the two parameters CL and CD when calculating. My solver is Fluent and I use K-W SST turbulence model. My mesh is the structure that I\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mesh-independence-study-3\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/11\/01-11-2023-1698847768-w1.PNG\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/11\/01-11-2023-1698847768-w1.PNG\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-11-01T14:19:04+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-11-03T16:27:50+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Mesh Independence study | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hi to all,I am working on a 3D airfoil. Currently, I am doing a mesh independence study to assess the dependence of the simulation results.For this purpose, I plot the two parameters CL and CD when calculating. My solver is Fluent and I use K-W SST turbulence model. My mesh is the structure that I\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/11\/01-11-2023-1698847768-w1.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\\\/mesh-independence-study-3\\\/#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\\\/mesh-independence-study-3\\\/#listItem\",\"name\":\"Mesh Independence study\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/mesh-independence-study-3\\\/#listItem\",\"position\":3,\"name\":\"Mesh Independence study\",\"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\\\/mesh-independence-study-3\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/mesh-independence-study-3\\\/\",\"name\":\"Mesh Independence study | Ansys Learning Forum\",\"description\":\"Hi to all,I am working on a 3D airfoil. Currently, I am doing a mesh independence study to assess the dependence of the simulation results.For this purpose, I plot the two parameters CL and CD when calculating. My solver is Fluent and I use K-W SST turbulence model. My mesh is the structure that I\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/mesh-independence-study-3\\\/#breadcrumblist\"},\"datePublished\":\"2023-11-01T14:19:04+00:00\",\"dateModified\":\"2023-11-03T16:27:50+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":"Mesh Independence study | Ansys Learning Forum","description":"Hi to all,I am working on a 3D airfoil. Currently, I am doing a mesh independence study to assess the dependence of the simulation results.For this purpose, I plot the two parameters CL and CD when calculating. My solver is Fluent and I use K-W SST turbulence model. My mesh is the structure that I","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mesh-independence-study-3\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mesh-independence-study-3\/#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\/mesh-independence-study-3\/#listItem","name":"Mesh Independence study"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mesh-independence-study-3\/#listItem","position":3,"name":"Mesh Independence study","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\/mesh-independence-study-3\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mesh-independence-study-3\/","name":"Mesh Independence study | Ansys Learning Forum","description":"Hi to all,I am working on a 3D airfoil. Currently, I am doing a mesh independence study to assess the dependence of the simulation results.For this purpose, I plot the two parameters CL and CD when calculating. My solver is Fluent and I use K-W SST turbulence model. My mesh is the structure that I","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mesh-independence-study-3\/#breadcrumblist"},"datePublished":"2023-11-01T14:19:04+00:00","dateModified":"2023-11-03T16:27:50+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":"Mesh Independence study | Ansys Learning Forum","og:description":"Hi to all,I am working on a 3D airfoil. Currently, I am doing a mesh independence study to assess the dependence of the simulation results.For this purpose, I plot the two parameters CL and CD when calculating. My solver is Fluent and I use K-W SST turbulence model. My mesh is the structure that I","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mesh-independence-study-3\/","og:image":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/11\/01-11-2023-1698847768-w1.PNG","og:image:secure_url":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/11\/01-11-2023-1698847768-w1.PNG","article:published_time":"2023-11-01T14:19:04+00:00","article:modified_time":"2023-11-03T16:27:50+00:00","twitter:card":"summary_large_image","twitter:title":"Mesh Independence study | Ansys Learning Forum","twitter:description":"Hi to all,I am working on a 3D airfoil. Currently, I am doing a mesh independence study to assess the dependence of the simulation results.For this purpose, I plot the two parameters CL and CD when calculating. My solver is Fluent and I use K-W SST turbulence model. My mesh is the structure that I","twitter:image":"https:\/\/innovationspace.ansys.com\/forum\/forum\/wp-content\/uploads\/sites\/2\/2023\/11\/01-11-2023-1698847768-w1.PNG"},"aioseo_meta_data":{"post_id":"314346","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 17:37:28","updated":"2024-10-28 17:37:28","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\tMesh Independence study\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":"Mesh Independence study","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mesh-independence-study-3\/"}],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["17026","199"],"_bbp_author_ip":["96.7.218.215"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["3440"],"_bbp_status":["publish"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["314346"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","17026"],"_bbp_voice_count":["2"],"_bbp_reply_count":["11"],"_bbp_last_reply_id":["314810"],"_bbp_last_active_id":["314810"],"_bbp_last_active_time":["2023-11-03 16:35:46"]},"test":"a-karimi8457gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/314346","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\/314346\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=314346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}