{"id":255636,"date":"2019-11-27T12:02:15","date_gmt":"2019-11-27T12:02:15","guid":{"rendered":"\/forum\/forums\/topic\/strange-behaviour-as-the-fidelity-is-increased\/"},"modified":"2022-08-22T06:53:06","modified_gmt":"2022-08-22T06:53:06","slug":"strange-behaviour-as-the-fidelity-is-increased","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/strange-behaviour-as-the-fidelity-is-increased\/","title":{"rendered":"Strange Behaviour as the fidelity is increased"},"content":{"rendered":"

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Hi all, <\/p>\n

  One of our customer is experiencing a very strange behavior of Discovery Live. The model is similar to a long slender pipe subjected to internal and external pressure, it is fixed at one end and guided axially at the other end and halfway of the length of the pipe. I have attached the model. The results changed drastically depending where the fidelity bar is. Low fidelity and high fidelity seems to give reasonable results, deformation shape and magnitudes seems to be OK, however at some intermediate fidelity locations the results are totally wrong. see pictures attached. <\/p>\n

  I am running this mode in Discovery Live 2019 R3 on a Dell (Alienware) laptop with and Nvidia GeForce GTX 1060, see details below. <\/p>\n

 <\/p>\n

Operating System:    Windows 10 Pro, 64-bit
DirectX version:    12.0 
GPU processor:        GeForce GTX 1060
Driver version:        431.86
Driver Type:        Standard
Direct3D API version:    12
Direct3D feature level:    12_1
CUDA Cores:        1280 
Core clock:        1404 MHz 
Memory data rate:    8.01 Gbps
Memory interface:    192-bit 
Memory bandwidth:    192.19 GB\/s
Total available graphics memory:    14272 MB
Dedicated video memory:    6144 MB GDDR5
System video memory:    0 MB
Shared system memory:    8128 MB
Video BIOS version:    86.06.3E.00.10
IRQ:            Not used
Bus:            PCI Express x8 Gen3
Device Id:        10DE 1C20 07701028
Part Number:        2914 0030
  <\/p>\n

Also when reviewing displacements in the Y and Z direction, the results seems to be wrong in the cases where the overall solution seems to be correct. It looks like the values are 1 order of magnitude bigger that it should be and also Y and Z are interchanged. <\/p>\n

 <\/p>\n

Any Idea why this behavior? in this particular case is quite simple to detect that the solution is totally wrong but what about in a more complicated assembly? identifying this behavior could be very difficult.  <\/p>\n

Any idea to avoid this problem is very welcome. <\/p>\n

 <\/p>\n

Thanks a lot for your help <\/p>\n

\n 🛈<\/span>
\nThis post originally contained file attachments which have been removed in compliance with the updated Ansys Learning Forum Terms & Conditions<\/a><\/b>\n<\/div>\n","protected":false},"template":"","class_list":["post-255636","topic","type-topic","status-closed","hentry","topic-tag-discovery-live-2"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["278329"],"_bbp_likes_count":["0"],"_btv_view_count":["317"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["255636"],"_bbp_forum_id":["27789"],"_bbp_engagement":["71","278329"],"_bbp_voice_count":["2"],"_bbp_reply_count":["15"],"_bbp_last_reply_id":["266560"],"_bbp_last_active_id":["266560"],"_bbp_last_active_time":["2020-03-10 15:55:19"]},"test":"gariascadfemuk-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/255636","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\/255636\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=255636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}