


{"id":393786,"date":"2024-11-12T12:12:06","date_gmt":"2024-11-12T12:12:06","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/393786\/"},"modified":"2024-11-19T10:45:26","modified_gmt":"2024-11-19T10:45:26","slug":"393786","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/393786\/","title":{"rendered":"Reply To: Volumetric mesh with cell volumes smaller than machine precision"},"content":{"rendered":"<p>&lt;p&gt;Fluent should be OK with that scale (we run micro fluidic models) but check the near wall resolution and aspect ratio too.&nbsp;&lt;\/p&gt;&lt;p&gt;Hybrid meshes should be fine, and were routine up until we moved to poly meshes for many applications. However, check the cell size change at the boundary between the cell zones as the pyramid caps can cause issues.&nbsp;&lt;\/p&gt;&lt;p&gt;As an aside, the length unit is metre&#8230;. \ud83d\ude09&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-393786","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=\"Fluent should be OK with that scale (we run micro fluidic models) but check the near wall resolution and aspect ratio too. Hybrid meshes should be fine, and were routine up until we moved to poly meshes for many applications. However, check the cell size change at the boundary between the cell zones as the pyramid\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/393786\/\" \/>\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: Volumetric mesh with cell volumes smaller than machine precision | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Fluent should be OK with that scale (we run micro fluidic models) but check the near wall resolution and aspect ratio too. Hybrid meshes should be fine, and were routine up until we moved to poly meshes for many applications. However, check the cell size change at the boundary between the cell zones as the pyramid\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/393786\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-11-12T12:12:06+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-11-19T10:45:26+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Volumetric mesh with cell volumes smaller than machine precision | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Fluent should be OK with that scale (we run micro fluidic models) but check the near wall resolution and aspect ratio too. Hybrid meshes should be fine, and were routine up until we moved to poly meshes for many applications. However, check the cell size change at the boundary between the cell zones as the pyramid\" \/>\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\\\/393786\\\/#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\\\/393786\\\/#listItem\",\"name\":\"Reply To: Volumetric mesh with cell volumes smaller than machine precision\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/393786\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Volumetric mesh with cell volumes smaller than machine precision\",\"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\\\/393786\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/393786\\\/\",\"name\":\"Reply To: Volumetric mesh with cell volumes smaller than machine precision | Ansys Learning Forum\",\"description\":\"Fluent should be OK with that scale (we run micro fluidic models) but check the near wall resolution and aspect ratio too. Hybrid meshes should be fine, and were routine up until we moved to poly meshes for many applications. However, check the cell size change at the boundary between the cell zones as the pyramid\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/393786\\\/#breadcrumblist\"},\"datePublished\":\"2024-11-12T12:12:06+00:00\",\"dateModified\":\"2024-11-19T10:45:26+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: Volumetric mesh with cell volumes smaller than machine precision | Ansys Learning Forum","description":"Fluent should be OK with that scale (we run micro fluidic models) but check the near wall resolution and aspect ratio too. Hybrid meshes should be fine, and were routine up until we moved to poly meshes for many applications. However, check the cell size change at the boundary between the cell zones as the pyramid","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/393786\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/393786\/#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\/393786\/#listItem","name":"Reply To: Volumetric mesh with cell volumes smaller than machine precision"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/393786\/#listItem","position":2,"name":"Reply To: Volumetric mesh with cell volumes smaller than machine precision","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\/393786\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/393786\/","name":"Reply To: Volumetric mesh with cell volumes smaller than machine precision | Ansys Learning Forum","description":"Fluent should be OK with that scale (we run micro fluidic models) but check the near wall resolution and aspect ratio too. Hybrid meshes should be fine, and were routine up until we moved to poly meshes for many applications. However, check the cell size change at the boundary between the cell zones as the pyramid","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/393786\/#breadcrumblist"},"datePublished":"2024-11-12T12:12:06+00:00","dateModified":"2024-11-19T10:45:26+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: Volumetric mesh with cell volumes smaller than machine precision | Ansys Learning Forum","og:description":"Fluent should be OK with that scale (we run micro fluidic models) but check the near wall resolution and aspect ratio too. Hybrid meshes should be fine, and were routine up until we moved to poly meshes for many applications. However, check the cell size change at the boundary between the cell zones as the pyramid","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/393786\/","article:published_time":"2024-11-12T12:12:06+00:00","article:modified_time":"2024-11-19T10:45:26+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Volumetric mesh with cell volumes smaller than machine precision | Ansys Learning Forum","twitter:description":"Fluent should be OK with that scale (we run micro fluidic models) but check the near wall resolution and aspect ratio too. Hybrid meshes should be fine, and were routine up until we moved to poly meshes for many applications. However, check the cell size change at the boundary between the cell zones as the pyramid"},"aioseo_meta_data":{"post_id":"393786","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 17:15:01","updated":"2026-08-04 18:13:34","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: Volumetric mesh with cell volumes smaller than machine precision\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Reply To: Volumetric mesh with cell volumes smaller than machine precision","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/393786\/"}],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/393786","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":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/393786\/revisions"}],"predecessor-version":[{"id":394238,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/393786\/revisions\/394238"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=393786"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}