{"id":198546,"date":"2026-05-11T15:37:43","date_gmt":"2026-05-11T15:37:43","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/knowledge\/?post_type=topic&p=198546"},"modified":"2026-06-11T22:19:16","modified_gmt":"2026-06-11T22:19:16","slug":"ansys-freeflow-faqs-and-tips","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/ansys-freeflow-faqs-and-tips\/","title":{"rendered":"Ansys FreeFlow FAQs and Tips"},"content":{"rendered":"

\"\"<\/h1>\n

FreeFlow FAQs & Tips<\/h2>\n

Welcome to Ansys FreeFlow FAQ and Tips Center<\/strong>.<\/em><\/p>\n

Navigate through contents below and find answers and tips\u00a0 from our team of experts to enhance your Ansys FreeFlow engineering simulations.\u00a0\u00a0<\/em><\/p>\n

 <\/p>\n

\n

\/<\/span>FreeFlow SPH Adaptive Size<\/strong><\/h2>\n
\n
<\/div>\n
\nWhat is SPH Adaptive Size in Ansys FreeFlow?<\/strong><\/a><\/summary>\n

SPH Adaptive Size is a capability in Ansys FreeFlow that automatically adjusts the size (resolution) of SPH elements during a simulation… Read full FAQ<\/a><\/p>\n<\/details>\n

\nHow is SPH Adaptive Size different from standard SPH in Ansys FreeFlow?<\/strong><\/a><\/summary>\n

With SPH Adaptive Size, the element size can change locally during simulation, the resolution is higher only in selected regions or near boundaries… Read full FAQ<\/a><\/p>\n<\/details>\n

\nHow does SPH Adaptive Size work in Ansys FreeFlow?<\/strong><\/a><\/summary>\n

SPH Adaptive Size in Ansys FreeFlow works by refining and coarsening SPH elements in a controlled, hierarchical manner, improving accuracy only where needed while keeping overall computational cost low… Read full FAQ<\/a><\/p>\n<\/details>\n

\nWhat are the main benefits of using SPH Adaptive Size, and what types of applications benefit most from it?<\/strong><\/a><\/summary>\n

SPH Adaptive Size key benefits include, Improved accuracy in critical flow regions, Reduced computation time compared to uniform fine resolution… Read full FAQ<\/a><\/p>\n<\/details>\n

\nWhich solvers support SPH Adaptive Size?<\/strong><\/a><\/summary>\n

SPH Adaptive Size is supported with the following solvers, Implicit Incompressible SPH (IISPH) \u2014 Default and recommended solver… Read full FAQ<\/a><\/p>\n<\/details>\n

\nWhat is SPH Adaptive size coarsening, and how does it work in Ansys FreeFlow?<\/strong><\/a><\/summary>\n

Coarsening is the process of reducing SPH resolution when refined elements are no longer needed… Read full FAQ<\/a><\/p>\n<\/details>\n

\nWhat are the limitations of SPH Adaptive Size in Ansys FreeFlow?<\/strong><\/a><\/summary>\n

SPH Adaptive Size in Ansys FreeFlow has a few important limitations that users should consider when setting up simulations and analyzing results… Read full FAQ<\/a><\/p>\n<\/details>\n<\/div>\n","protected":false},"template":"","class_list":["post-198546","topic","type-topic","status-publish","hentry","topic-tag-faqs","topic-tag-freeflow-faqs","topic-tag-freeflow-sph","topic-tag-sph-faqs","filter-by-application-ansys-freeflow","filter-by-application-freeflow-faqs","filter-by-industry-sph","application-products-ansys-freeflow"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_edit_lock":["1781217076:17114"],"_edit_last":["17114"],"_aioseo_title":[null],"_aioseo_description":[null],"_aioseo_keywords":["a:0:{}"],"_aioseo_og_title":[null],"_aioseo_og_description":[null],"_aioseo_og_article_section":[""],"_aioseo_og_article_tags":["a:0:{}"],"_aioseo_twitter_title":[null],"_aioseo_twitter_description":[null],"application_name":[""],"_application_name":["field_64a80903c8e15"],"filter_by_optics_product":["Lumerical"],"_filter_by_optics_product":["field_64fb192ba3121"],"family":[""],"_family":["field_64a809229a857"],"siebel_km_number":[""],"_siebel_km_number":["field_63ecbffce60db"],"salesforce_km_number":[""],"_salesforce_km_number":["field_63ecc018e60dc"],"km_published_date":[""],"_km_published_date":["field_64c77704499dd"],"product_version":[""],"_product_version":["field_64c776cb4fd2e"],"_bbp_forum_id":["27796"],"_bbp_topic_id":["199022"],"_bbp_author_ip":["192.104.24.234"],"_bbp_last_reply_id":["0"],"_bbp_last_active_id":["198547"],"_bbp_last_active_time":["2026-05-11 15:37:43"],"_bbp_reply_count":["0"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["0"],"_btv_view_count":["378"]},"test":"solution"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/198546","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":16,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/198546\/revisions"}],"predecessor-version":[{"id":199022,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/198546\/revisions\/199022"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=198546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}