{"id":164482,"date":"2023-03-17T06:12:30","date_gmt":"2023-03-17T06:12:30","guid":{"rendered":"\/knowledge\/forums\/topic\/tips-for-predicting-vortex-shedding-with-high-mach-number-and-high-reynolds-number-flows-in-3d\/"},"modified":"2023-07-31T12:36:40","modified_gmt":"2023-07-31T12:36:40","slug":"tips-for-predicting-vortex-shedding-with-high-mach-number-and-high-reynolds-number-flows-in-3d","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/tips-for-predicting-vortex-shedding-with-high-mach-number-and-high-reynolds-number-flows-in-3d\/","title":{"rendered":"Tips for predicting vortex shedding with high Mach number and high Reynolds number flows in 3D"},"content":{"rendered":"<p>Flow domains that contain constrictions such as orifice plates may produce high Reynolds number and high Mach number flows with votex shedding. This solution provides solution strategy tips for such flows.  Following solver settings will be useful:  (1) Single precision solver. (2) Higher order discretization schemes: 2nd order for time, momentum, k, epsilon, energy and PRESTO for pressure. (3) Change the reference values for area, length, temperature, and velocity according to the characteristics values of the problem. (4) RNG model with differential viscosity option.   Solution Strategy:  Start with segregated solver and small flow rate such that Re number lies in the range 10,000-50,000. This helps in gradually developing the correct flow field. Once the correct flow field (oscillating field) is established, increase the flow rate in steps and run the simulation for some time steps at every increase. If Mach No. reaches above 2.5 then switch over to coupled solver.<\/p>\n","protected":false},"template":"","class_list":["post-164482","topic","type-topic","status-publish","hentry","topic-tag-fluent","topic-tag-fluid-dynamics","topic-tag-general","topic-tag-general-fluent"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Flow domains that contain constrictions such as orifice plates may produce high Reynolds number and high Mach number flows with votex shedding. This solution provides solution strategy tips for such flows. Following solver settings will be useful: (1) Single precision solver. 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This solution provides solution strategy tips for such flows. Following solver settings will be useful: (1) Single precision solver. 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Following solver settings will be useful: (1) Single precision solver. 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(2) Higher order discretization schemes: 2nd order for time, momentum, k, epsilon, energy and","canonical_url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/tips-for-predicting-vortex-shedding-with-high-mach-number-and-high-reynolds-number-flows-in-3d\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/tips-for-predicting-vortex-shedding-with-high-mach-number-and-high-reynolds-number-flows-in-3d\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/knowledge","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","position":2,"name":"Topics","item":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/#listItem","name":"fluent"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/#listItem","position":3,"name":"fluent","item":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/tips-for-predicting-vortex-shedding-with-high-mach-number-and-high-reynolds-number-flows-in-3d\/#listItem","name":"Tips for predicting vortex shedding with high Mach number and high Reynolds number flows in 3D"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/tips-for-predicting-vortex-shedding-with-high-mach-number-and-high-reynolds-number-flows-in-3d\/#listItem","position":4,"name":"Tips for predicting vortex shedding with high Mach number and high Reynolds number flows in 3D","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/#listItem","name":"fluent"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#organization","name":"Ansys Knowledge","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/knowledge\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/tips-for-predicting-vortex-shedding-with-high-mach-number-and-high-reynolds-number-flows-in-3d\/#webpage","url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/tips-for-predicting-vortex-shedding-with-high-mach-number-and-high-reynolds-number-flows-in-3d\/","name":"Tips for predicting vortex shedding with high Mach number and high Reynolds number flows in 3D | Ansys Knowledge","description":"Flow domains that contain constrictions such as orifice plates may produce high Reynolds number and high Mach number flows with votex shedding. 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(2) Higher order discretization schemes: 2nd order for time, momentum, k, epsilon, energy and"},"aioseo_meta_data":{"post_id":"164482","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":"default","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":false,"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":"2025-10-17 21:22:44","updated":"2026-07-29 13:51:00","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\/knowledge\" 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\/knowledge\/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\/knowledge\/forums\/topic-tag\/fluent\/\" title=\"fluent\">fluent<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tTips for predicting vortex shedding with high Mach number and high Reynolds number flows in 3D\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/knowledge"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/"},{"label":"fluent","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/fluent\/"},{"label":"Tips for predicting vortex shedding with high Mach number and high Reynolds number flows in 3D","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/tips-for-predicting-vortex-shedding-with-high-mach-number-and-high-reynolds-number-flows-in-3d\/"}],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["12\/2\/2022 20:20"],"_bbp_forum_id":["27796"],"_bbp_author_ip":["23.56.168.180"],"_btv_view_count":["788"],"siebel_km_number":["1294"],"product_version":["Other"],"km_published_date":["2005-08-02T17:30:00.000Z"],"family":["Fluid Dynamics"],"application_name":["FLUENT"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/164482","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/164482\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=164482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}