Discrete Element Method numerical modelling
Numerical investigation on the role of discrete element method in combined LBM-IBM-DEM modelling
... Boltzmann method (LBM) has been widely adopted to simulate particle–fluid interaction problems [1-21] mainly due to the fact that the formulation of LBM is quite simpler than the conventional Computational Fluid ...
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DISCRETE ELEMENT MODELLING OF CONE PENETRATION TESTING IN GRANULAR MATERIALS
... finite element method, a common limitation is observed, in that the results of finite element method have not been verified or compared with experimental results ...and numerical ...
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Modelling of interaction between a snow mantle and a flexible structure using a discrete element method
... The numerical algorithm has led to the development of com- putational software so that avalanche nets can be easily de- signed as a function of upstream snow ...this numerical tool is in ...and ...
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Steps towards numerical verification of the terahertz in line measurement of tablet mixing by means of discrete element modelling
... which changes in refractive index occur. By applying a set of pre-determined selection criteria from theoretical estimations and analysing off-line measurements, only the waveforms that originate from the surface of a ...
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Modelling discrete soil reinforcement in numerical limit analysis
... reinforcement element is often idealised using a pre-computed pull-out force acting to stabilise the construction (Duncan 1996), and ‘method of slices’ type calculations are often used to assess stability ...
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Modelling of hydraulic fracturing process by coupled discrete element and fluid dynamic methods
... coupled Discrete Element Method and Computational Fluid Dynamics ...The numerical results are in good agreement with the experimental data, both qualitatively and ...
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Discrete element modelling of creep of asphalt mixtures
... the numerical material was obtained from the standard mean grading curve for a 0–10 mm SMA (BS EN 13108–5:2006), while neglecting particles with diameter less than 2 mm (Cai et ...expansion method (Itasca, ...
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Discrete element modelling of particulate flow in die filling and powder transfer
... thesis, numerical investigation of die filling and powder transfer within discrete element method framework is ...The numerical investigations are carried out to provide alternative ...
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DISCRETE ELEMENT MODELLING OF PARTICLE DEGARDATION OF RAILWAY BALLAST MATERIAL WITH PFC3D SOFTWARE
... About Discrete Element Modelling. The dis- crete element method is used to simulate particu- late or granular modelled material and ...a numerical method in which the set ...
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Discrete element modelling and cavity expansion analysis of cone penetration testing
... alternative method could be to use periodic boundaries, which may help minimise boundaries effects close to the cone, this would add additional computational weight to the ...The numerical chamber comprises ...
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Discrete element modelling of material non coaxiality in simple shear flows
... We investigate the quasi-static simple shear fl ow of a two-dimensional assembly of cohesionless particles using discrete element method (DEM) simulations. We focus on the unsteady fl ow regime where ...
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Discrete element modelling of flexible fibre packing
... The Discrete Element Method applied to spheres is well estab- lished as a reasonably realistic tool, in a wide range of engineering disciplines, for modelling packing and flow of granular ...
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Discrete element modelling of uniaxial constant strain rate tests on asphalt mixtures
... microfabric discrete ele- ment modelling (MDEM) by using the commercial DEM package ...small discrete elements and the microstructure was obtained by optically scanning smoothly sawn test ...
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Impact of shape representation schemes used in discrete element modelling of particle packing
... validated numerical methods to simulate the particle movement due to costs, effort and freedom of selecting particle characteristics such as shape and particle size distribution ...
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Simulation and Analysis of Tablet Pressing Process Based on Discrete Element Method
... the discrete element method, this paper simulated the pressing process of the single-impulse tablet press, obtained the specific pressing process, and discussed the simulation ...
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An Investigation into Soil-Structure Interaction Problems using Discrete Element Method.
... This section highlights developments in applications using DEM. Although full scale DEM models of geotechnical problem cannot be realized due to computational limits (e.g., small time-step needed for accuracy results ...
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On mathematical modelling of aeroelastic problems with finite element method
... applied numerical method should be able to treat the moving ...popular method is the arbitrary Lagrangian-Eulerian(ALE) method, see ...ment method, see ...the numerical analysis ...
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A Study of the Wave Velocity in Granular Soils using Discrete Element Method
... granular soil was made. Simulation was performed to investigate the soil behavior under sinusoidal excitations with different amplitude and frequency (shear wave). Three types of soils with porosities of 35.5 %, 36.5% ...
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Effect of Particle Size Distribution and Packing Characteristics on Railroad Ballast Shear Strength: A Numerical Study Using the Discrete Element Method
... ballast, discrete element modeling of ballast, and the mechanism and benefits of ballast reinforcement using geogrids is ...the Discrete Element Method (DEM) as an advanced approach to ...
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Material models for concrete in discrete element method (dem) applications
... The results reported in the paper confirm the capability of the truss-like DEM approach employed by the authors to determine the response of quasi-fragile materials like concrete or rock, to predict material behavior ...
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