Greetings, <\/p>\n
I’m trying to use Discovery Live to model wind flow around a group of buildings as part of a post-graduate urban design\/architecture project. Moderating wind flow is important to the project and I was hoping the interactive element of Discovery Live would enable a relatively quick iterative process where I could quickly test different design decisions. <\/p>\n
First off, the program runs great. Orders of magnitude faster than Flow Design and with many more features. It’s been a real pleasure so far. However, I’m having issues trying to see wind flow dynamics at about 1.5m above the ground plane. Basically, all wind speed drops to 0m\/s. I only get meaningful results when the clipping plane is at about 5m, far too high to predict wind at the pedestrian level. Having been to the site myself, I can confirm, at least anecdotally, that wind on a normal day is definitely not 0m\/s. <\/p>\n
Looking at the test model of the truck, this same thing happens only at about 5mm above the ground plane. I’ve tried to change the scale of the 3D model, both in the modelling program and Discovery Live, from meters to millimeters to no avail. I’m wondering if the problem is the inherent scale of the model I’m trying to analyze (approx 11,000m2 site area). Can anyone confirm? I saw a blog post about modelling wind flow in a stadium using Discovery Live so I was working from the assumption that the program handles both small- and large-scale models. <\/p>\n
Perhaps there’s some other setting that I am missing? I set up the wind tunnel enclosure quite a bit bigger than the 3D model so that the tunnel boundaries don’t artificially affect the flow. However, the ground plane corresponds with the real ground plane (level of building footprint). I did attempt to make the enclosure deeper than the model, which eliminated the 0 wind speed problem, but I was worried that airflow going underneath the buildings affected the overall accuracy. <\/p>\n
Thank you in advance. <\/p>\n","protected":false},"template":"","class_list":["post-257228","topic","type-topic","status-closed","hentry","topic-tag-discovery-live-2","topic-tag-fluids"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["278917"],"_bbp_likes_count":["0"],"_btv_view_count":["476"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["257228"],"_bbp_forum_id":["27789"],"_bbp_engagement":["126","278917"],"_bbp_voice_count":["2"],"_bbp_reply_count":["8"],"_bbp_last_reply_id":["274323"],"_bbp_last_active_id":["274323"],"_bbp_last_active_time":["2018-03-16 11:01:02"]},"test":"tor-anders-sudmeyerstud-aho-no"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/257228","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\/257228\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=257228"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}