{"id":198410,"date":"2026-04-28T23:50:56","date_gmt":"2026-04-28T23:50:56","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/knowledge\/?post_type=topic&p=198410"},"modified":"2026-04-29T17:53:59","modified_gmt":"2026-04-29T17:53:59","slug":"freeflow-faqs-what-is-sph-adaptive-size-in-ansys-freeflow","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/freeflow-faqs-what-is-sph-adaptive-size-in-ansys-freeflow\/","title":{"rendered":"[FreeFlow FAQs] What is SPH Adaptive Size in Ansys FreeFlow?"},"content":{"rendered":"

\"\"<\/h1>\n

What is SPH Adaptive Size in Ansys FreeFlow?<\/strong><\/h1>\n

SPH Adaptive Size<\/strong> is a capability in Ansys FreeFlow that automatically adjusts the size (resolution)<\/strong> of SPH elements during a simulation. Instead of using the same element size everywhere, you can define where higher accuracy is needed, and then the SPH solver will dynamically refine or coarsen SPH elements.<\/p>\n

The main purpose of the SPH Adaptive Sizing method is to improve computational performance for problems in which accurate physical resolution is required only in specific regions of the domain.<\/div>\n

Instead of uniformly refining the entire fluid domain, the SPH Adaptive Sizing Method<\/strong> allows higher resolution to be applied only in regions of interest. By refining SPH elements locally, while keeping a coarser resolution elsewhere, the method reduces the total number of SPH elements and, consequently, lowers computational cost and simulation time without compromising accuracy where it matters most.<\/p>\n

 <\/p>\n

Ansys FreeFlow\u2122 smoothed-particle hydrodynamics (SPH) simulation software<\/em> <\/span><\/span><\/h6>\n

\"\"<\/strong><\/p>\n

Janaina Oliveira<\/strong><\/h3>\n

Technical\/Product Publications<\/strong><\/em><\/p>\n","protected":false},"template":"","class_list":["post-198410","topic","type-topic","status-publish","hentry","topic-tag-freeflow-sph","topic-tag-sph","topic-tag-sph-adaptive-size","topic-tag-sph-adpative","filter-by-application-ansys-freeflow"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_edit_lock":["1777486319:17114"],"_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":["198420"],"_bbp_author_ip":["192.104.24.234"],"_bbp_last_reply_id":["0"],"_bbp_last_active_id":["198411"],"_bbp_last_active_time":["2026-04-28 23:50:56"],"_bbp_reply_count":["0"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["0"],"_btv_view_count":["22"],"_bbp_likes_count":["2"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/198410","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":5,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/198410\/revisions"}],"predecessor-version":[{"id":198420,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/198410\/revisions\/198420"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=198410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}