Re: [Yade-users] [Question #703556]: Hertz-Mindlin model energy dissipation
Question #703556 on Yade changed: https://answers.launchpad.net/yade/+question/703556 Status: Open => Answered Jan Stránský proposed the following answer: Hello, > I am using: please read [1] and provide a MWE. > GravityEngine(gravity=(0,0,g)) GravityEngine is deprecated [2] > For plotting the energy dissipation of the model I am using: "Hertz- Mindlin.normDampDissip" surely you are using something else. Here it is clear what you mean, but please try to use exactly the same code if referring it. > From which part of the Hertz-Mindlin model is the energy dissipation coming > if there is no dissipative force in the model? Can you please refer me to the > publication from where this dissipative force appears or from where it comes > the "normDampDissip" in this model? > If the system is energy conservative how it happens that we have energy > dissipation? Documentation [3]: "Moreover, it is also possible to include the effect of linear viscous damping through the definition of the parameters βn and βs." Damping is the source. Of course, with damping, the system is "not energy conservative". Have a look at Yade material models [4] and Modenese2012b [5] Also source code is the option [6]. Cheers Jan [1] https://www.yade-dem.org/wiki/Howtoask [2] https://yade-dem.org/doc/yade.wrapper.html#yade.wrapper.GravityEngine [3] https://yade-dem.org/doc/yade.wrapper.html#yade.wrapper.Law2_ScGeom_MindlinPhys_Mindlin [4] https://yade-dem.org/wiki/ConstitutiveLaws [5] https://www.yade-dem.org/doc/publications.html [6] https://gitlab.com/yade-dev/trunk/-/blob/master/pkg/dem/HertzMindlin.cpp#L416 -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #703556]: Hertz-Mindlin model energy dissipation
New question #703556 on Yade: https://answers.launchpad.net/yade/+question/703556 Hi, I have a simple question: >From which part of the Hertz-Mindlin model is the energy dissipation coming if >there is no dissipative force in the model? Can you please refer me to the >publication from where this dissipative force appears or from where it comes >the "normDampDissip" in this model? I am using: [Ip2_FrictMat_FrictMat_MindlinPhys()], [Law2_ScGeom_MindlinPhys_Mindlin()] GravityEngine(gravity=(0,0,g)) TranslationEngine(translationAxis=[0,0,1],velocity=damp,ids=(all),dead=False,) For plotting the energy dissipation of the model I am using: "Hertz-Mindlin.normDampDissip" If the system is energy conservative how it happens that we have energy dissipation? Thank you in advance! -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #703553]: Can I simulate water in Yade?
Question #703553 on Yade changed: https://answers.launchpad.net/yade/+question/703553 Status: Open => Answered Jan Stránský proposed the following answer: Instant replay: It very much depends on the definition of "water" and what you expect from it. Please be (much much) more specific. Does it flow? How? Does it influence soil? How? ? > use water to fill the gap between the particles, just like the soil just like the soil what? usually in yade, soil does not fill gap between particles, soil is the particles. > the soil particles are filled with water and groundwater. How do you distinguish water and groundwater? how does (from model point of view) differ soil particles filled with water and not filled with water? As a start, search documentation for "water", "flow", "liquid" etc. Cheers Jan [1] https://yade-dem.org/doc/FoamCoupling.html [2] https://yade-dem.org/doc/yade.wrapper.html#yade.wrapper.FlowEngine [3] https://yade-dem.org/doc/yade.wrapper.html#yade.wrapper.TwoPhaseFlowEngine [4] https://yade-dem.org/doc/yade.wrapper.html#yade.wrapper.HydrodynamicsLawLBM [5] https://www.yade-dem.org/wiki/Fluid-solid_coupling -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #703553]: Can I simulate water in Yade?
Question #703553 on Yade changed: https://answers.launchpad.net/yade/+question/703553 Status: Answered => Open 孙灿 is still having a problem: I just need to set up groundwater in nature and use water to fill the gap between the particles, just like the soil, the soil particles are filled with water and groundwater. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #703554]: How to use notInNotch ?
Question #703554 on Yade changed: https://answers.launchpad.net/yade/+question/703554 Status: Answered => Solved Mahmoud Ashour confirmed that the question is solved: exactly, that's what i was looking for. Thanks a lot -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #703554]: How to use notInNotch ?
Question #703554 on Yade changed: https://answers.launchpad.net/yade/+question/703554 Mahmoud Ashour posted a new comment: exactly, that's what i was looking for. Thanks a lot -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #703553]: Can I simulate water in Yade?
Question #703553 on Yade changed: https://answers.launchpad.net/yade/+question/703553 Status: Open => Answered Jan Stránský proposed the following answer: It very much depends on the definition of "water" and what you expect from it. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #703554]: How to use notInNotch ?
Question #703554 on Yade changed: https://answers.launchpad.net/yade/+question/703554 Status: Open => Answered Jan Stránský proposed the following answer: Hello, see example [1]. If it is not sufficient, please provide more information, what have you tried and did not work etc. Cheers Jan [1] https://gitlab.com/yade- dev/trunk/-/blob/master/examples/packs/packs.py -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #703553]: Can I simulate water in Yade?
Question #703553 on Yade changed: https://answers.launchpad.net/yade/+question/703553 Status: Answered => Open 孙灿 is still having a problem: Suppose I add particles in the range ((0,0,0),(2,3,4)), how do I generate water to reach a height of 2m? -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #703554]: How to use notInNotch ?
New question #703554 on Yade: https://answers.launchpad.net/yade/+question/703554 Hello, I'm trying to create a block with a notch. I know that I need to use ' notInNotch' to create the package but I'm facing a problem to understand how to use it. does anyone have an example of how we can use it? thanks in advance best regards, Mahmoud -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #703498]: Young's modulus or the effect of the wall on the test
Question #703498 on Yade changed: https://answers.launchpad.net/yade/+question/703498 Status: Needs information => Answered Jan Stránský proposed the following answer: > Since makeCloud is not completely symmetrical, is there a way to generate particles as symmetrically as possible? There are many options: - using predefined regular (and therefor symmetric) packing [2,3] - using a different custom packing (e.r. rectangular grid) - using makeCloud on half of the domain and then mirror it to the remaining half - ... > If makeCloud is not symmetrical, then every simulation result will have a deviation, or even a large deviation, is this correct? No. Not every simulation uses makeCloud, so the question is meaningless (therefore no) for those simulations not using it. Not every result will have deviation (from symmetry I assume) even if using makeCloud, it depends on the type of results, circumstances, using of makeCloud etc. See above, you can simply mirror makeCloud to make the final packing symmetric, even if makeCloud itself is not symmetric. I would state it as: Simulation using makeCloud may have results which deviates (even largely) from symmetry, but not necessarily. Cheers Jan [2] https://yade-dem.org/doc/yade.pack.html#yade.pack.regularHexa [3] https://yade-dem.org/doc/yade.pack.html#yade.pack.regularOrtho -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #703553]: Can I simulate water in Yade?
Question #703553 on Yade changed: https://answers.launchpad.net/yade/+question/703553 Status: Open => Answered Jan Stránský proposed the following answer: Yes -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #703553]: Can I simulate water in Yade?
New question #703553 on Yade: https://answers.launchpad.net/yade/+question/703553 Can I generate water in the simulation? -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #703498]: Young's modulus or the effect of the wall on the test
Question #703498 on Yade changed: https://answers.launchpad.net/yade/+question/703498 孙灿 posted a new comment: Since makeCloud is not completely symmetrical, is there a way to generate particles as symmetrically as possible? If makeCloud is not symmetrical, then every simulation result will have a deviation, or even a large deviation, is this correct? -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
