{"id":32840,"date":"2019-01-24T08:20:55","date_gmt":"2019-01-24T08:20:55","guid":{"rendered":"\/forum\/forums\/topic\/how-to-calculate-1-time-step-size-2-number-of-time-step-sizes-3-max-iterations-time-step\/"},"modified":"2019-01-24T08:20:55","modified_gmt":"2019-01-24T08:20:55","slug":"how-to-calculate-1-time-step-size-2-number-of-time-step-sizes-3-max-iterations-time-step","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-calculate-1-time-step-size-2-number-of-time-step-sizes-3-max-iterations-time-step\/","title":{"rendered":"How to calculate 1 (time step size) 2 (number of time step sizes) 3 (Max iterations\/time step) ?"},"content":{"rendered":"<p>Helo,<\/p>\n<p><\/p>\n<p>Hope you all are doing well,<\/p>\n<p><\/p>\n<p>Actually i have a simple geometry in which a box consist of (5 m length 0.7 m width 0.1 m height) and a cylinders which is installed in a box at a distance of 2.5 m ( 46 Number of cylinders in staggered arrangement )&nbsp;<\/p>\n<p><\/p>\n<p>Mesh= tetrahedrons<\/p>\n<p><\/p>\n<p>my fluid domain consist of two&nbsp; phases ( water and air ) and i want to calculate velocity profiles and water depth in front of cylinders. what are the values of&nbsp; time step size,&nbsp;number of time step sizes , Max iterations\/time step that my solution will easily converged.how i will calculate these values any formula??<\/p>\n<p><\/p>\n<p>i want to show the picture of some results but that results seems not good.In this picture the fluid domain full consist of water but&nbsp; i have entered both the values of air and water as well.<\/p>\n<p><\/p>\n<p style=\"box-sizing: border-box; margin: 0px 0px 10px; font-size: 15px; overflow-x: hidden; font-family: 'Open Sans', Arial, Helvetica, sans-serif;\">Does anyone know how can i get correct air water interaction in domain by entering the correct values of time step size so that my solution is easily converged&nbsp; ?<\/p>\n<p><\/p>\n<p style=\"box-sizing: border-box; margin: 0px 0px 10px; font-size: 15px; overflow-x: hidden; font-family: 'Open Sans', Arial, Helvetica, sans-serif;\">Thank you in advance<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/621e8eb5-15bf-4199-a5b8-a9df0081aecc\/36052fe6-f323-43f8-be9f-a9df0089870c_capture1.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-32840","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["5012"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0","0","0","0"],"_btv_view_count":["1715"],"_bbp_subscription":["238453"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["32840"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","22555","161968"],"_bbp_voice_count":["3"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["75988"],"_bbp_last_active_id":["75988"],"_bbp_last_active_time":["2019-01-25 15:44:25"]},"test":"amina"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/32840","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\/32840\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=32840"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}