{"id":52635,"date":"2021-02-26T15:59:46","date_gmt":"2021-02-26T15:59:46","guid":{"rendered":"\/forum\/forums\/topic\/how-to-compute-mean-residence-time\/"},"modified":"2021-02-26T15:59:46","modified_gmt":"2021-02-26T15:59:46","slug":"how-to-compute-mean-residence-time","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-compute-mean-residence-time\/","title":{"rendered":"How to compute mean residence time"},"content":{"rendered":"<p>Hello everyone,nHow can I compute the mean residence time of particles inside a fluid? nMy simulations are steady state. At the moment I&#8217;m using the pathlines colored by particle time to get the maximum value of the residence time. My idea was to export these pathlines and then do the average of the residence times but when I do this the file that I&#8217;m exporting contains only the X,Y,Z coordinates of my points and the time step, not actually the residence time. As a result I get an avg value which is higher than the max (which I compute on Ansys &#8211; pathlines dialogue box).nI know this approach to compute the mean RT is wrong, is there any other way to do it?nI&#8217;m using the pathlines and not the DPM because I would use massless particles in a steady state configuraton, so I figured out that using pathlines in post-processing is quicker and allows me to choose a specific surface from which release the pathlines.nnThank you n<\/p>\n","protected":false},"template":"","class_list":["post-52635","topic","type-topic","status-closed","hentry","topic-tag-pathlines","topic-tag-time"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["24939"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":["?Rr?"],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["2600"],"_bbp_subscription":["232958"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["52635"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","167730","186615"],"_bbp_voice_count":["3"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["144332"],"_bbp_last_active_id":["144332"],"_bbp_last_active_time":["2021-03-02 09:26:17"]},"test":"cats1"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/52635","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\/52635\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=52635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}