Re: [Yade-users] [Question #697479]: Spheres swelling
Question #697479 on Yade changed: https://answers.launchpad.net/yade/+question/697479 Status: Needs information => Open Mithushan Soundaranathan gave more information on the question: Hi Both, Thank you very much, the problem is that I do not how implement the swelling model in Yade and different option I have to implement it. I am thinking of something similar to: def fradius(t): return *insert your function here(t)* for b in O.bodies: if isinstance(shape, Sphere): b.shape.radius = fradius(O.time) would be great. Best, Mithu -- 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 #697479]: Spheres swelling
Question #697479 on Yade changed: https://answers.launchpad.net/yade/+question/697479 Status: Open => Answered Jan Stránský proposed the following answer: > I do not how implement the swelling model in Yade and different option I have to implement it. you can: - use python and PyRunner and update particles regularly - implement new Engine in C++ - ... I would start with python, something like Robert's suggestion ### O.engines = [ ... PyRunner(command="swell()",iterPeriod=1), # or iterPeriod=someOtherNumber, or virtPeriod instead of iterPeriod ] def swell(): for b in O.bodies: # test if body is sphere? swell1(b) def swell1(body): rCurrent = body.state.radius rNew = ... # eq. (9) using rCurrent body.state.radius = rNew # mass and inertia does change or not? ### Cheers Jan -- 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 #697479]: Spheres growing
New question #697479 on Yade: https://answers.launchpad.net/yade/+question/697479 Hi, I want simulate the swelling of the particles by using Eq. 9 from this paper https://www.sciencedirect.com/science/article/pii/S0032591017304722#!. How can I do it, is there any in-built function in Yade. Can I use the TriaxialStressController and maxmultiplier. Best, Mithu -- 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 #697479]: Spheres swelling
Question #697479 on Yade changed: https://answers.launchpad.net/yade/+question/697479 Summary changed to: Spheres swelling -- 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 #697479]: Spheres swelling
Question #697479 on Yade changed: https://answers.launchpad.net/yade/+question/697479 Status: Answered => Open Mithushan Soundaranathan is still having a problem: The scale method, can we use different scale or does it need to be constant? -- 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 #697479]: Spheres swelling
Question #697479 on Yade changed: https://answers.launchpad.net/yade/+question/697479 Robert Caulk requested more information: As Jan says, we really need to know what your problem is before we can give you any real advice. In general, you could do it like this from the yade input script: def fradius(t): return *insert your function here(t)* for b in O.bodies: if isinstance(shape, Sphere): b.shape.radius = fradius(O.time) But if you need it to be a function of saturation, you could look at PartialSatClayEngine [1]. In that engine, the swelling of particles is an exponential function that depends on saturation level. Another example of particle "swelling" is in ThermalEngine where it thermally expands particles according to their temperature [2]. [1] https://www.yade-dem.org/doc/yade.wrapper.html#yade.wrapper.PartialSatClayEngine [2] https://www.yade-dem.org/doc/yade.wrapper.html#yade.wrapper.ThermalEngine -- 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 #697479]: Spheres swelling
Question #697479 on Yade changed: https://answers.launchpad.net/yade/+question/697479 Robert Caulk posted a new comment: edit: the for loop on the body container would need to be put into a PyRunner FYI. https://www.yade-dem.org/doc/tutorial-data- mining.html?highlight=pyrunner#pyrunner -- 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 #697461]: Triaxial Dense no Peak
Question #697461 on Yade changed: https://answers.launchpad.net/yade/+question/697461 Jérôme Duriez posted a new comment: Hi, If I were you, I would try to get back known DEM results showing that dense behavior [*]. By adopting the same particle size distribution (at least), and checking whether your generation procedures enable you to get similar initial porosities than those previous DEM simulations. [*] https://onlinelibrary.wiley.com/doi/full/10.1002/nag.2774, Figure 3 in case you would appreciate an example. Dense-like behavior is obtained therein, under 10 kPa confining pressure, for a 0.38 initial porosity -- 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 #697479]: Spheres swelling
Question #697479 on Yade changed: https://answers.launchpad.net/yade/+question/697479 Status: Open => Answered Jan Stránský proposed the following answer: Hello, please provide what is the problem (changing size of particles, computing dri from eq.9, ...). In general, you can arbitrarily modify b.shape.radius, b.state.mass, b.state.inertia to match your needs. There used to be a function to scale a sphere including mass (might not be what you want), but I don't remember its name cannot find it at the moment. Cheers Jan -- 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 #697479]: Spheres swelling
Question #697479 on Yade changed: https://answers.launchpad.net/yade/+question/697479 Status: Open => Needs information Jan Stránský requested more information: > I want to change radius (dri) over time of the spheres. > b.shape.radius=dri at different time point. Instant replay: please provide what is the problem. > The scale method, can we use different scale or does it need to be constant? Please provide some context Cheers Jan -- 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 #697479]: Spheres swelling
Question #697479 on Yade changed: https://answers.launchpad.net/yade/+question/697479 Mithushan Soundaranathan posted a new comment: Hi Jan, I want to change radius (dri) over time of the spheres. b.shape.radius=dri at different time point. Best, Mithu -- 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 #697433]: Instantiating a new FlowEngine after removing does not work
Question #697433 on Yade changed: https://answers.launchpad.net/yade/+question/697433 Status: Answered => Open Zhicheng Gao is still having a problem: Dear Robert, I'm doing erosion experiments, so I need to delete particles many times, maybe 1 times, maybe more. According to your method, I need to add 1 FlowEngines. Will this cause the problem of insufficient memory -- 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
