{"id":158739,"date":"2021-05-21T21:51:29","date_gmt":"2021-05-21T21:51:29","guid":{"rendered":"\/forum\/forums\/topic\/how-to-determine-the-minimum-and-maximum-timestep-in-autodyn\/"},"modified":"2021-08-10T06:01:05","modified_gmt":"2021-08-10T06:01:05","slug":"how-to-determine-the-minimum-and-maximum-timestep-in-autodyn","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-determine-the-minimum-and-maximum-timestep-in-autodyn\/","title":{"rendered":"How to determine the minimum and maximum timestep in Autodyn"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi there, <\/p>\n<p>I saw that you should determine your timestep according to the CFL condition t = f(h\/c).<\/p>\n<p>I have calculated my t = 1.56151E-06 ms.<\/p>\n<p>However, I am unsure what I should be putting in as the minimum, maximum and initial timestep. <\/p>\n<p>The manual states that for minimum timestep &quot;If the timestep drops below this value, your problem will be terminated.&quot; &#8211; but i dont know what tolerance I should provide below my desired timestep of 1.56151E-06 ms so that the problem doesn&#039;t terminate. Same for maximum timestep.<\/p>\n<p>I want to run my simulation for 1.5ms.<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"\/forum\/wp-content\/uploads\/forum-uploads\/720\/SE9Q8KBH6XUD.png\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/720\/SE9Q8KBH6XUD.png\" alt=\"image.png\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-158739","topic","type-topic","status-closed","hentry","topic-tag-autodyn","topic-tag-cfl-time-step-1","topic-tag-explicit-dynamics","topic-tag-timestep"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_old_reply_author_name_id":["Anonymous"],"_bbp_old_is_reply_anonymous_id":["false"],"_btv_view_count":["3677"],"_bbp_likes_count":["0"],"_bbp_subscription":["232438"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["158739"],"_bbp_forum_id":["27814"],"_bbp_engagement":["13386","185913","217837"],"_bbp_voice_count":["3"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["179526"],"_bbp_last_active_id":["179526"],"_bbp_last_active_time":["2021-08-10 06:01:05"]},"test":"conorryan98"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/158739","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/158739\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=158739"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}