Hi there,
I am trying to reproduce the CU triaxial test with CFDEM. There are two problems I am facing with. First, when the specimen undergoes axial compression, the specimen becomes deformed, that means the CFD mesh should change dynamically. Boundary in this case is not fixed. Second, the servo wall in liggghts dose not recognize the pressure from the pore fluid, which means I cant keep the cell pressure stable like the indoor experiments.
Can anyone give me some suggestions? Thanks a lot.
tala | Wed, 03/29/2017 - 14:42
Dear Zhou
Dear Zhou
sorry because I don't know how to help you. I am trying to do CU triaxial test too, I have other problem, I would appreciate it, if you could help me to fix it, I have defined a loop in LIGGGHTS to control confining pressure during axial compression but it makes a trouble when I want to couple LIGGGHTS program with CFD one, and I should remove the loop. I want to know how have you fixed this matter?
may I have your contact information for more communication?
Cheers,
Talat,
zhou_yu | Wed, 04/05/2017 - 10:15
my email address
Hi Talat,
My email address is ' yzhoubu@connect.ust.hk'.
Hope to discuss further with you.
regards,
Zhou Yu