Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Matuttis Hans-Georg"'
We report our experiences for the development of a neighborhood algorithm implemented via tree-codes to optimize the performance of a discrete element method (DEM) for convex polytopes. Our implementation of the two-dimensional tree code needs $N\log
Externí odkaz:
http://arxiv.org/abs/2412.03041
Publikováno v:
E3S Web of Conferences, Vol 429, p 02012 (2023)
This study focused on simulating incompressible viscous flow using the finite element method. This study used velocity and pressure as unknowns known as primitive variable formulations. Simulation of incompressible fluid flow poses numerical challeng
Externí odkaz:
https://doaj.org/article/206b4fae4d1d48c9a74e9a5834762db0
Publikováno v:
EPJ Web of Conferences, Vol 249, p 06001 (2021)
We investigate the avalanches of spherical and non-spherical granular particles inside half-filled rotating drums. The time series of the center of gravity of the particle assemblies are obtained via image analysis and their single-sided amplitude (S
Externí odkaz:
https://doaj.org/article/32aa2f91010e4d1197a3c1e861dd8f8e
Publikováno v:
EPJ Web of Conferences, Vol 249, p 09006 (2021)
For homogeneous systems like classical fluid dynamics and structural mechanics, finite element method (FEM) grid generation has reached a mature state. On the other hand, for multi-physics-problems like fluids with a high density of immersed particle
Externí odkaz:
https://doaj.org/article/67357382afa64a429d498f97a1ddd480
Publikováno v:
EPJ Web of Conferences, Vol 249, p 14005 (2021)
As a follow-up of an earlier work on the numerically exact Coulomb friction in two-dimensional simulations, we present here the relations and implementation for three-dimensional discrete element particles.
Externí odkaz:
https://doaj.org/article/87ae78eda14f49f79c9a437a8890ae23
Autor:
Krengel Dominik, Matuttis Hans-Georg
Publikováno v:
EPJ Web of Conferences, Vol 140, p 15020 (2017)
Currently there exists no mechanically consistent “numerically exact” implementation of static and dynamic Coulomb friction for general soft particle simulations with arbitrary contact situations in two or three dimension, but only along one dime
Externí odkaz:
https://doaj.org/article/0cb2ef096f204624a03bf6b8f4b954f5
Publikováno v:
EPJ Web of Conferences, Vol 140, p 06005 (2017)
While most granular materials in nature and technology consist of non-convex particles, the majority of discrete element (DEM) codes are still only able to cope with convex particles, due to the complexity of the computational geometry and the occurr
Externí odkaz:
https://doaj.org/article/62e23459a8d242b39b3c6c84099eb37b
Publikováno v:
In Powder Technology 1 September 2023 427
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