{"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&#038;p=198546"},"modified":"2026-05-11T15:50:11","modified_gmt":"2026-05-11T15:50:11","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  id=\"\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-198416 size-full aligncenter\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/04\/GPU-Buying-guide-v1-1-e1777422962330.png\" alt=\"\" width=\"1920\" height=\"358\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/04\/GPU-Buying-guide-v1-1-e1777422962330.png 1920w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/04\/GPU-Buying-guide-v1-1-e1777422962330-300x56.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/04\/GPU-Buying-guide-v1-1-e1777422962330-1024x191.png 1024w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/04\/GPU-Buying-guide-v1-1-e1777422962330-768x143.png 768w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/04\/GPU-Buying-guide-v1-1-e1777422962330-1536x286.png 1536w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/04\/GPU-Buying-guide-v1-1-e1777422962330-24x4.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/04\/GPU-Buying-guide-v1-1-e1777422962330-36x7.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2026\/04\/GPU-Buying-guide-v1-1-e1777422962330-48x9.png 48w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/h1>\n<h2 style=\"text-align: center\" style=\"text-align: center\"  id=\"FREEFLOW-FAQS-TIPS\">FreeFlow FAQs &amp; Tips<\/h2>\n<p style=\"text-align: center\"><em>Welcome to <strong>Ansys FreeFlow FAQ and Tips Center<\/strong>.<\/em><\/p>\n<p style=\"text-align: center\"><em>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>&nbsp;<\/p>\n<hr \/>\n<h2  id=\"FREEFLOW-SPH-ADAPTIVE-SIZE\"><strong><span style=\"font-size: 50px;font-weight: 900;color: #fdb71a\">\/<\/span>FreeFlow SPH Adaptive Size<\/strong><\/h2>\n<div style=\"background: #fedb8d;padding: 16px;border-radius: 8px;margin-bottom: 20px\">\n<div id=\"GeneralTopics\"><\/div>\n<details>\n<summary><strong>What is SPH Adaptive Size in Ansys FreeFlow?<\/strong><\/summary>\n<p>SPH Adaptive Size is a capability in Ansys FreeFlow that automatically adjusts the size (resolution) of SPH elements during a simulation&#8230; <a href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/freeflow-faqs-what-is-sph-adaptive-size-in-ansys-freeflow\/\">Read full FAQ<\/a><\/p>\n<\/details>\n<details>\n<summary><strong>How is SPH Adaptive Size different from standard SPH in Ansys FreeFlow?<\/strong><\/summary>\n<p>With SPH Adaptive Size, the element size can change locally during simulation, the resolution is higher only in selected regions or near boundaries&#8230; <a href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/freeflow-faqs-how-is-sph-adaptive-size-different-from-standard-sph-in-ansys-freeflow\/\">Read full FAQ<\/a><\/p>\n<\/details>\n<details>\n<summary><strong>How does SPH Adaptive Size work in Ansys FreeFlow?<\/strong><\/summary>\n<p>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&#8230; <a href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/freeflow-faqs-how-does-sph-adaptive-size-work-in-ansys-freeflow\/\">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":["1778514832:17114"],"_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":["198546"],"_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":["97"]},"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":4,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/198546\/revisions"}],"predecessor-version":[{"id":198548,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/198546\/revisions\/198548"}],"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}]}}