Re: [Yade-users] [Question #686942]: What is random close packing and random loose packing

Question #686942 on Yade changed: https://answers.launchpad.net/yade/+question/686942 Status: Answered => Solved Huang peilun confirmed that the question is solved: Thanks Robert Caulk, that solved my question. -- You received this question notification because your team yade-us

[Yade-users] [Question #686942]: What is random close packing and random loose packing

New question #686942 on Yade: https://answers.launchpad.net/yade/+question/686942 Hi, I have trouble with the 'makecloud' The document says makecloud create random very loose packing enclosed in a parallelepiped. What is random very loose packing? Does it have a mathematical definition? I've

Re: [Yade-users] [Question #688156]: How to create a regular prism in Yade

Question #688156 on Yade changed: https://answers.launchpad.net/yade/+question/688156 Huang peilun posted a new comment: I want to create a body shaped as a prism. By "not round cylinder" I mean not the cylinder for yade.gridpfacet module, I see from the yade book that there

Re: [Yade-users] [Question #688156]: How to create a regular prism in Yade

Question #688156 on Yade changed: https://answers.launchpad.net/yade/+question/688156 Huang peilun posted a new comment: Thank you, Jan! That solved my problem. I'll post what I have tried and why/how it went wrong. This time I just use O.bodies.append(Cylinder(length=1, radius=1)) I didn't

[Yade-users] [Question #688340]: Problem about running yade in parallel

New question #688340 on Yade: https://answers.launchpad.net/yade/+question/688340 Hi everyone! I'm learning to run yadedaily in parallel. I use 'yadedaily --threads=2 test.py' to run my code. First few steps works fine but then comes an error which says: python3.5:

Re: [Yade-users] [Question #688275]: Size problem in yade simulation

Question #688275 on Yade changed: https://answers.launchpad.net/yade/+question/688275 Huang peilun posted a new comment: Thanks! I increased the stiffness but there still are spheres that go through the bottom of the cylinder. Here's my code. from yade import

Re: [Yade-users] [Question #688340]: Problem about running yade in parallel

Question #688340 on Yade changed: https://answers.launchpad.net/yade/+question/688340 Huang peilun posted a new comment: Thanks for your reply! it's " Yade 20200119-3121~146d6de~xenial1. Ubuntu 16.04 LTS xenial. " I can run the first few steps and then this problem occurs. -- Yo

Re: [Yade-users] [Question #688340]: Problem about running yade in parallel

Question #688340 on Yade changed: https://answers.launchpad.net/yade/+question/688340 Status: Answered => Solved Huang peilun confirmed that the question is solved: Thanks Jérôme Duriez, that solved my question. -- You received this question notification because your team yade-us

Re: [Yade-users] [Question #688340]: Problem about running yade in parallel

Question #688340 on Yade changed: https://answers.launchpad.net/yade/+question/688340 Huang peilun posted a new comment: That's great. Thanks! -- You received this question notification because your team yade-users is an answer contact for Yade

Re: [Yade-users] [Question #688156]: How to create a regular prism in Yade

Question #688156 on Yade changed: https://answers.launchpad.net/yade/+question/688156 Status: Answered => Solved Huang peilun confirmed that the question is solved: Thank you, Jan! I'll do better next time. -- You received this question notification because your team yade-us

Re: [Yade-users] [Question #688275]: Size problem in yade simulation

Question #688275 on Yade changed: https://answers.launchpad.net/yade/+question/688275 Status: Answered => Solved Huang peilun confirmed that the question is solved: Thanks Jan! I tried SoilMat=FrictMat(young=25e9,...) and it works! Now I understand why these spheres go through the cylin

Re: [Yade-users] [Question #688275]: Size problem in yade simulation

Question #688275 on Yade changed: https://answers.launchpad.net/yade/+question/688275 Huang peilun confirmed that the question is solved: Thanks Jan Stránský, that solved my question. -- You received this question notification because your team yade-users is an answer contact for Yade

Re: [Yade-users] [Question #688275]: Size problem in yade simulation

Question #688275 on Yade changed: https://answers.launchpad.net/yade/+question/688275 Description changed to: I did a gravity deposition test in a cylinder. The following is the original code and it works. from yade import pack #material

Re: [Yade-users] [Question #688275]: Size problem in yade simulation

Question #688275 on Yade changed: https://answers.launchpad.net/yade/+question/688275 Huang peilun posted a new comment: Thanks Robert. I haven't tried increasing the stiffness of the facets because I don't know how. Can you show me how to do that? -- You received this question notification

[Yade-users] [Question #688275]: Size problem in yade simulation

New question #688275 on Yade: https://answers.launchpad.net/yade/+question/688275 I did a gravity deposition test in a cylinder. The following is the original code and it works. from yade import pack #material SoilMat=FrictMat(young=25e6,poisson=0.2,density=2650,frictionAngle=0.28)

[Yade-users] [Question #688156]: How to create a regular prism in Yade

New question #688156 on Yade: https://answers.launchpad.net/yade/+question/688156 Hi, I just begin to learn Yade. I'm wondering if there is a function or method to create a regular prism without calculate the coordinates of each vertexes by myself. And if there is a method to create a

Re: [Yade-users] [Question #690752]: How to know the force applied to each particle when Flowengine is activited

Question #690752 on Yade changed: https://answers.launchpad.net/yade/+question/690752 Status: Answered => Solved Huang peilun confirmed that the question is solved: Thanks Robert Caulk, that solved my question. -- You received this question notification because your team yade-us

[Yade-users] [Question #690752]: How to know the force applied to each particle when Flowengine is activited

New question #690752 on Yade: https://answers.launchpad.net/yade/+question/690752 Hi, I just begin to learn the Flowengine. My code is as followed: import numpy as np from yade import pack, plot, polyhedra_utils #define the material(Fontainebleau Sand) SteelMat =

Re: [Yade-users] [Question #692650]: How to use the DFNFlowEngine

Question #692650 on Yade changed: https://answers.launchpad.net/yade/+question/692650 Huang peilun posted a new comment: Thanks for your advice, Robert. -- You received this question notification because your team yade-users is an answer contact for Yade

Re: [Yade-users] [Question #692704]: Using flow engine got the wrong pressure field

Question #692704 on Yade changed: https://answers.launchpad.net/yade/+question/692704 Status: Answered => Solved Huang peilun confirmed that the question is solved: Thanks Robert, it's indeed a stability problem. I tried the radius expansion method, I think it's a fast way to gener

Re: [Yade-users] [Question #692650]: How to use the DFNFlowEngine

Question #692650 on Yade changed: https://answers.launchpad.net/yade/+question/692650 Status: Open => Solved Huang peilun confirmed that the question is solved: Thanks Jérôme Duriez, that solved my question. -- You received this question notification because your team yade-us

[Yade-users] [Question #692704]: Using flow engine got the wrong pressure field

New question #692704 on Yade: https://answers.launchpad.net/yade/+question/692704 Hi, I'm currently simulating a simple seepage problem. My code is as followed: from yade import pack, plot,

Re: [Yade-users] [Question #692704]: Using flow engine got the wrong pressure field

Question #692704 on Yade changed: https://answers.launchpad.net/yade/+question/692704 Huang peilun posted a new comment: Hi Robert, Thank you for answering my question. I'm sorry that I didn't read the posting guidelines carefully. I'll follow the guidelines in the future. As for the issue, I

Re: [Yade-users] [Question #692704]: Using flow engine got the wrong pressure field

Question #692704 on Yade changed: https://answers.launchpad.net/yade/+question/692704 Huang peilun posted a new comment: Also, in order to get a stable pressure field, reducing the fluid viscosity helps a lot. -- You received this question notification because your team yade-users is an answer

Re: [Yade-users] [Question #692704]: Using flow engine got the wrong pressure field

Question #692704 on Yade changed: https://answers.launchpad.net/yade/+question/692704 Huang peilun posted a new comment: Thanks, Robert. I've rewrite my script. The particles generated by my old script appears to get a 'high' velocity in the first few iterations. And the particle velocity

Re: [Yade-users] [Question #692704]: Using flow engine got the wrong pressure field

Question #692704 on Yade changed: https://answers.launchpad.net/yade/+question/692704 Huang peilun posted a new comment: >If this is true, then you just need to ensure that your unbalanced force is lower. This has nothing to do with flow engine. Yes, I agree with you. >It changes r

Re: [Yade-users] [Question #693370]: Problems about the flow.multithread

Question #693370 on Yade changed: https://answers.launchpad.net/yade/+question/693370 Status: Answered => Solved Huang peilun confirmed that the question is solved: Thanks Robert Caulk, that solved my question. -- You received this question notification because your team yade-us

[Yade-users] [Question #693370]: Problems about the flow.multithread

New question #693370 on Yade: https://answers.launchpad.net/yade/+question/693370 I've been using the "flow.multithread" to accelerate the calculation speed of problems about saturated soil recently. I've encounter several problems about the "flow.multithread". 1. When I write

[Yade-users] [Question #692650]: How to use the DFNFlowEngine

New question #692650 on Yade: https://answers.launchpad.net/yade/+question/692650 Hi, I am trying to simulation a standard penetration test on saturated soil. I've been told that the FlowEngine is restricted to quasi-static regimes and may not be suitable for the penetration test. Therefore, I

Re: [Yade-users] [Question #693017]: How to accelerate Yade's poromechanical coupling

Question #693017 on Yade changed: https://answers.launchpad.net/yade/+question/693017 Status: Answered => Solved Huang peilun confirmed that the question is solved: Thanks Robert, that solved my question. -- You received this question notification because your team yade-users is an ans

Re: [Yade-users] [Question #693017]: How to accelerate Yade's poromechanical coupling

Question #693017 on Yade changed: https://answers.launchpad.net/yade/+question/693017 Huang peilun posted a new comment: Thanks Robert, your comments help me a lot. I now understand the matrix factorization reuse, multithreaded factorization and GPU accelerated techniques. I still have some

[Yade-users] [Question #693017]: How to accelerate Yade's poromechanical coupling

New question #693017 on Yade: https://answers.launchpad.net/yade/+question/693017 Hi, I learned from this paper [1] that Yade's poromechanically coupled DEM+PFV scheme can be accelerated by 170x by combining four techniques: matrix factor reuse, multithreaded factorization, GPU accelerated

[Yade-users] [Question #693803]: How to model seismic wave propagation

New question #693803 on Yade: https://answers.launchpad.net/yade/+question/693803 Hi, I want to model seismic wave propagation in granular soil. However, I didn't find many examples. I find the method in [1] interesting, but I don't know how to apply this method in Yade. In [1], soil

Re: [Yade-users] [Question #693803]: How to model seismic wave propagation

Question #693803 on Yade changed: https://answers.launchpad.net/yade/+question/693803 Status: Answered => Solved Huang peilun confirmed that the question is solved: Thanks Jan Stránský, that solved my question. -- You received this question notification because your team yade-us

[Yade-users] [Question #693831]: How to deal with the dynamic boundary setting and the input of seismic waves in YADE

New question #693831 on Yade: https://answers.launchpad.net/yade/+question/693831 Hi, I want to model seismic wave propagation in granular soil. Unlike static analysis, fixed boundaries reflect outward propagating waves back into the model and trap energy of the outward traveling waves which

[Yade-users] [Question #696228]: How to get a pressure boundary condition as triangle distribution by FlowEngine

New question #696228 on Yade: https://answers.launchpad.net/yade/+question/696228 Hello all, As we know, water pressure increases with depth. (Pressure=denstiy*g*depth) I want to use FlowEngine to get a pressure boundary that the pressure is increasing with depth. However, I find that by

Re: [Yade-users] [Question #696228]: How to get a pressure boundary condition as triangle distribution by FlowEngine

Question #696228 on Yade changed: https://answers.launchpad.net/yade/+question/696228 Status: Answered => Solved Huang peilun confirmed that the question is solved: Thanks Robert Caulk, that solved my question. -- You received this question notification because your team yade-us

Re: [Yade-users] [Question #695934]: Compression won't stop when the goal of TriaxialStressController is reached

Question #695934 on Yade changed: https://answers.launchpad.net/yade/+question/695934 Huang peilun posted a new comment: Thanks Jan Stránský, that solved my question. -- You received this question notification because your team yade-users is an answer contact for Yade

Re: [Yade-users] [Question #695934]: Compression won't stop when the goal of TriaxialStressController is reached

Question #695934 on Yade changed: https://answers.launchpad.net/yade/+question/695934 Status: Answered => Solved Huang peilun confirmed that the question is solved: Thanks Robert Caulk, that solved my question. -- You received this question notification because your team yade-us

Re: [Yade-users] [Question #696055]: O.load: Input stream error

Question #696055 on Yade changed: https://answers.launchpad.net/yade/+question/696055 Huang peilun posted a new comment: Thanks a lot. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing

Re: [Yade-users] [Question #696056]: Can't clump facet together

Question #696056 on Yade changed: https://answers.launchpad.net/yade/+question/696056 Huang peilun posted a new comment: > for discussion continuation, why not providing more info already this time? :-) Really sorry about that. > what is "a boudary"? I want to simu

Re: [Yade-users] [Question #696056]: Can't clump facet together

Question #696056 on Yade changed: https://answers.launchpad.net/yade/+question/696056 Huang peilun posted a new comment: Yes, I need a clump for the boundary. I want to create a boundary that is not cuboid, like a polyhedron. But I'm not proficient in using Yade. The only thought that came up

Re: [Yade-users] [Question #696055]: O.load: Input stream error

Question #696055 on Yade changed: https://answers.launchpad.net/yade/+question/696055 Huang peilun posted a new comment: Thanks. Now I understand. I saved the files with the old version. But in this case if I want to repeat the simulation or try some other conditions, I should not update Yade

Re: [Yade-users] [Question #696055]: O.load: Input stream error

Question #696055 on Yade changed: https://answers.launchpad.net/yade/+question/696055 Status: Answered => Solved Huang peilun confirmed that the question is solved: Thanks Jan Stránský, that solved my question. -- You received this question notification because your team yade-us

[Yade-users] [Question #696055]: O.load: Input stream error

New question #696055 on Yade: https://answers.launchpad.net/yade/+question/696055 Hi, I just update the yadedaily. It's now Yade 20210313-5135~5285d37~bionic1. Before I update, O.load works fine. Now it reports this error:

[Yade-users] [Question #696056]: Can't clump facet together

New question #696056 on Yade: https://answers.launchpad.net/yade/+question/696056 Hi, I'm trying to clump facet together to create a boundary that is not cuboid. My code is as followed:

Re: [Yade-users] [Question #696056]: Can't clump facet together

Question #696056 on Yade changed: https://answers.launchpad.net/yade/+question/696056 Status: Answered => Solved Huang peilun confirmed that the question is solved: Thanks Jan Stránský, that solved my question. -- You received this question notification because your team yade-us

Re: [Yade-users] [Question #696056]: Can't clump facet together

Question #696056 on Yade changed: https://answers.launchpad.net/yade/+question/696056 Huang peilun posted a new comment: Thanks, I'll pay attention to provide more information next time. -- You received this question notification because your team yade-users is an answer contact for Yade

Re: [Yade-users] [Question #696056]: Can't clump facet together

Question #696056 on Yade changed: https://answers.launchpad.net/yade/+question/696056 Huang peilun posted a new comment: Thanks, that solved my question. -- You received this question notification because your team yade-users is an answer contact for Yade

Re: [Yade-users] [Question #695934]: Compression won't stop when the goal of TriaxialStressController is reached

Question #695934 on Yade changed: https://answers.launchpad.net/yade/+question/695934 Huang peilun posted a new comment: Thanks Robert, but is the assigned strain rate the rate of the true (logarithmic) strain? -- You received this question notification because your team yade-users is an answer

[Yade-users] [Question #695934]: Compression won't stop when the goal of TriaxialStressController is reached

New question #695934 on Yade: https://answers.launchpad.net/yade/+question/695934 Hi, I'm currently doing a simple compression test. I set the stressMask to be 0 and goal1, goal2, goal3 to be -0.1 in the TriaxialStressController. However, when the strain reaches -0.1, the compression does not

Re: [Yade-users] [Question #700748]: how to calculate the plastic part of shear displacement in law2-cohesionMoment

Question #700748 on Yade changed: https://answers.launchpad.net/yade/+question/700748 Status: Answered => Solved Huang peilun confirmed that the question is solved: Thanks Bruno Chareyre, that solved my question. -- You received this question notification because your team yade-us

[Yade-users] [Question #700748]: how to calculate the plastic part of shear displacement in law2-cohesionMoment

New question #700748 on Yade: https://answers.launchpad.net/yade/+question/700748 Hi, I want to calculate the plastic shear displacement of any specific contact during every time step. I'm using Law2_ScGeom6D_CohFrictPhys_CohesionMoment[1]. In the source code, the plastic displacement is