VI International Conference on Particle-Based Methods: fundamentals and applications (PARTICLES 2019), Barcelona, 28-30 October, 2019
Proceedings of the VI International Conference on Particle-Based Methods - Fundamentals and Applications
Held in Barcelona, Spain, 28-30 October 2019
A publication of:
International Center for Numerical Methods in Engineering (CIMNE) Barcelona, Spain
E. Oñate, P. Wriggers, T. Zohdi, M. Bischoff and D.R.J. Owen (Eds.)
© The authors
Summary
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Headway in large-eddy-simulation within the SPH models
(2019)
Conference report
Open AccessIn the present paper we show some preliminary resuslts of a novel LES-SPH scheme that extends andgeneralizes the approach described in [2]. Differently from that work, the proposed scheme is based on the definition of a ... -
Limit mechanisms for ice loads: FEM-DEM and simplified load models
(2019)
Conference report
Open AccessThis work summarizes our recent findings on mechanisms and limits for the ice loads on wide inclined Arctic marine structures, like drilling platforms or harbour structures. The fresults presented are based on hundreds of ... -
Role of sliding contacts in shear banding affecting granular materials
(2019)
Conference report
Open AccessShear banding is a widely concerned issue caused by shearing in the field of granular geomechanics. At the macroscopic scale, the constitutive models meet difficulties to describe how and why the shear band forms within ... -
Stress distribution in trimodal samples
(2019)
Conference report
Open AccessThe distribution of stress between coarser and finer particles in gap-graded soils is considered a key factor contributing to the risk of internal instability or suffusion, amongst other soil properties. In reality soils ... -
Simulation of espresso coffee extraction using smoothed particle hydrodynamics
(2019)
Conference report
Open AccessA mesoscopic model for the simulation of espresso extraction based on the Smoothed Particle Hydrodynamics method is presented. The model incorporates some essential features such as bimodal granulometry (fines-coarses) of ... -
Multi-level load balancing for parallel particle simulations
(2019)
Conference report
Open AccessIdeas from multi-level relaxation methods are combined with load balancing techniques to achieve a convergence acceleration for a homogeneous work load distribution over a given set of processors when the underlying work ... -
Evaluation of dynamic explicit mpm formulations for unsaturated soils
(2019)
Conference report
Open AccessMany applications in geohazards prevention involve large deformations of unsaturated soils, e.g. rainfall induced landslides, embankment collapses due to wetting etc. These phenomena can be investigated with multiphase ... -
Verification and validation in highly viscous fluid simulation using a fully implicit sph method
(2019)
Conference report
Open AccessCatastrophes involving mass movements has always been a great threat to civilizations. We propse to simplify the behavior of the mass movement material as a highly viscous fluid, possibly non-Newtonian. In this context, ... -
Accurate solution of the boundary integral equation in 2d lagrangian vortex method for flow simulation around curvilinear airfoils
(2019)
Conference report
Open AccessThe problem of numerical solution of the boundary integral equation is considered for 2D case. Viscous vortex domains (VVD) method is used for flow simulation, so vorticity is generated on the whole surface line of the ... -
Comparison of the finite volume method with lagrangian vortex method for 2d flow simulation around airfoils at intermediate reynolds number
(2019)
Conference report
Open AccessThe paper is dedicated to the numerical simulation of two-dimensional viscous incompressible flow. The Viscous Vortex Domains method is considered, which is one of the modifications of Lagrangian vortex methods. This ... -
Lagrangian vortex loops method for hydrodynamic loads computation in 3D incompressible flows
(2019)
Conference report
Open AccessA new approach is developed for incompressible 3D flow simulation around bodies by Lagrangian vortex method. Closed vortex loops are considered as vortex elements, which are generated on all the body surface and provide ... -
Locomotion of the fish-like foil under own effort
(2019)
Conference report
Open AccessSelf-locomotion of the fish-like foil is simulated by the mesh-free method of viscous vortex domains (VVD). The foil consists of three rigid sections connected by the spring hinges. The forcing periodic moment is applied ... -
Parallel implementation of fast methods for vortex influence computation in vortex methods for 2d incompressible flows simulation
(2019)
Conference report
Open AccessVortex methods are a powerful tool for solving engineering problems of incompressible flow simulation at small subsonic speeds. The main idea is to consider vorticity as a primary computed variable. Vorticity distribution ... -
Simulation of butterfly flapping with the method of dipole domains
(2019)
Conference report
Open AccessA numerical mesh-free method of dipole domains [1,2] is used for simulation of a butterfly flapping model. This method is based on the representation of a vortex field by the set of dipole particles. The vector function D ... -
Vortex particle intensified large eddy simulation - VπLES
(2019)
Conference report
Open AccessThis paper presents a novel Large Eddy Simulation approach with a direct resolution of the subgrid motion of fine concentrated vortices. The method, proposed first by [10], is based on combination of a grid based and the ... -
Vorticity dynamics past an inclined elliptical cylinder at different re numbers: from periodic to chaotic solutions
(2019)
Conference report
Open AccessVortex methods offer an alternative way for the numerical simulation of problems regarding incompressible flows. In the present paper, a Vortex Particle Method (VPM) is combined with a Boundary Element Method for the study ... -
Numerical model of the mechanical behavior of coated materials in the friction pair of hip resurfacing endoprosthesis
(2019)
Conference report
Open AccessThe paper is devoted to the theoretical study of the mechanical behavior of materials in the friction pair of hip resurfacing endoprosthesis. The investigation was based on three-dimensional computer simulation ... -
Numerical modelling o bed sediment particle tracking in open channel with skewed box-culvert
(2019)
Conference report
Open AccessA particle tracking model was applied to estimate the bed sediment transport in open channel with skewed box-culvert in rivers in Mexico, for which purpose the calculation of the hydrodynamics of the study channel was ... -
A methodology of a sensitivity analysis in dem experiments
(2019)
Conference report
Open AccessIn this publication a sensitivity analysis for DEM modelparameters with respect to the pile- and the oedometer experiment is described. The analysis is performed with Sobol’ indices. Since the huge computational effort of ... -
Atomistic submodel implementation and application within microstructure analysis by molecular dynamics
(2019)
Conference report
Open AccessClassical continuum mechanics faces substantial difficulties for adequately describe stress and strain distributions around microstructural material discontinuities such as crystallographic defects, voids, and grain ... -
DEM modeling of rockfall rebound on protective embankments
(2019)
Conference report
Open AccessDesign of Rockfall Protection Embankments and estimation of their capacity to control the trajectory of rock boulders are complex issues, which give considerable room for research and improvement. A lack of detailed models ... -
DEM simulation of triaxial tests of railway ballast fouled with desert sand
(2019)
Conference report
Open AccessSome high-speed rail lines go through desert zones where sand particles transported by winds may foul track ballast layers. This fouling can be troublesome since it increases the stiffness of the layer and reduces ... -
Experimental and numerical investigations on parameters in energy dissipation in particle dampers
(2019)
Conference report
Open AccessParticle damping has become a favorable passive damping technique for lightweight structures, however, its complex dimensioning process hinder its wide use in technical applications. An experimental based model and a ... -
Laboratory and numerical investigation of direct shear box test
(2019)
Conference report
Open AccessIn agriculture, food, chemical, plastic and pharmaceutical industries for designing and operating machines, it is essential to determine the mechanical parameters of the processed granular materials. In most cases, these ... -
Large deformation analysis of ground with wall movement or hallow foundation under extremely low confining pressure using PIV
(2019)
Conference report
Open AccessLarge-scale natural disasters have occurred frequently in recent years. In such disasters, large ground deformation has been a recurring phenomenon. As it directly affects the structure, has dureable design is necessitated ... -
Modeling the soil heterogeneity in the discrete element model of soil-sweep interaction
(2019)
Conference report
Open AccessIn agriculture the analyse of soil compaction in soil-tool interaction has a significant role. The equipments of agricultural farms are getting bigger and more complicated and it has huge importance to optimize the tillage ... -
Preliminary numerical and experimental tests for the study of vibration signals in dry granular flows
(2019)
Conference report
Open AccessDebris flows are one of the most important hazards in mountainous areas because of their paroxysmal nature, the high velocities, and energy carried by the transported material. The monitoring of these phenomena plays a ... -
Optimal packing of poly-disperse spheres in 3D: effect of the grain size span and shape
(2019)
Conference report
Open AccessAbstract. In this work, we explore the effect of the grain size distribution (gsd) on the packing of 3D granular materials composed of spheres, and find the optimal packing with the highest density as a function of the gsd ... -
Parameter identification for discrete element simulation of vertical filling: in-situ bulk calibration for realistic granular foods
(2019)
Conference report
Open AccessVertical filling of granular media is influenced by resistance of the surrounding medium, especially in the case of a dilute process with relatively large distances between particles and relatively low particle densities. ... -
Parameter identification for soil simulation based on the discrete element method and application to small scale shallow penetration tests
(2019)
Conference report
Open AccessThe Discrete Element Method (DEM) is well-established and widely used in soil-tool interaction related applications. As for all simulation tools, a proper calibration of the model parameters is crucial. In this contribution, ... -
Particle-structure interaction using cad-based boundary descriptions and isogeometric B-REP analysis (IBRA)
(2019)
Conference report
Open AccessThe procedure and the properties with the use of NURBS-described CAD models in particle-structure interaction are presented within this contribution. This implies the needed entities of those models and the description of ... -
Rebound characteristics of complex particle geometries
(2019)
Conference report
Open AccessDigital analysation method for the characterisation of rebound effects of non-spherical DEM-particles: For the modelling of bulk material in DEM-simulations spherical particles are usually used. Due to their simple form ... -
DEM slope-failure analysis of the Minami-Aso / Tateno area during the 2016 Kumamoto earthquakes
(2019)
Conference report
Open AccessThe Kumamoto earthquakes, which occurred on April 16, 2016, included deep large-scale landslides in the Minami-Aso village / Tateno area; the Aso Bridge collapsed completely because of this slope failure. Aso Bridge is ... -
Microscopic calibration of rolling friction to mimic particle shape effects in DEM
(2019)
Conference report
Open AccessIt is widely recognised that particle shape influences the mechanical response of granular materials [1-2]. Rolling resistance elasto-plastic contact models are frequently used to approximate particle shape effects in ... -
Influence on uncertainty of earthquake response analysis results by initial particle arrangements and cohesion parameters in extended distinct element method
(2019)
Conference report
Open AccessFollowing the occurrence of extremely large earthquakes, such as the Great East Japan Earthquake, the level of design for earthquake ground motion in nuclear power plants has been enhanced. Additionally, the quantitative ... -
Role of inter-particle friction in granular materials under three dimensional conditions
(2019)
Conference report
Open AccessThe inter-particle friction is known to be an important contributor to the strength and deformation characteristics in granular materials. The mechanism of inter-particle friction to the macroscopic responses can be explained ... -
Simulation of geological faults with discrete element method
(2019)
Conference report
Open AccessWe present an algorithm for simulation of the Earth’s crust tectonic movements and formation of the geological faults and near-fault damage zones. The algorithms are based on the Discrete Elements Method, and it is implemented ... -
Stochastic solution of geotechnical problems in truly discrete media
(2019)
Conference report
Open AccessThis research deals with the solution of geotechnical problems on intermediate length scales, i.e. when the length scale of interest is larger than the size of the grains of the soil (or rockfill) but the medium cannot be ... -
Assessment of neighbor particles searching methods for discrete element method (DEM) based simulations
(2019)
Conference report
Open AccessThe performance of discrete element method (DEM) simulations is highly dependent on the requirements of the associated algorithms in terms of computer memory usage and CPU time. In particular, computer CPU time heavily ... -
DEM powder spreadingand SPH powder melting models for additive manufacturing processsimulations
(2019)
Conference report
Open AccessParticle-based numerical methods enable different process simulations for powder bed additive manufacturing. Two examples are the simulation of powder spreading and the simulation of melting and re-solidification. From ... -
Numerical investigation of screw design influence on screw feeding in a roller compactor
(2019)
Conference report
Open AccessRoller compaction refers to a dry granulation process where fine particulate feed is fed to the counter rotating rolls of a roller compactor to form ribbons which are further milled to produce free flowing agglomerates. ... -
Openfoam-interactive (OFI): an innovative universal interface to control solvers in openfoam
(2019)
Conference report
Open AccessWe present a new method for coupling fluid and particle systems that works by directly manipulating the flow field variables, mimicking the presence of solid particles rather than adding additional force terms in the ... -
Particle-based method for investigation of the physical processes in the complex industrial tasks
(2019)
Conference report
Open AccessThe main task of this paper is improved of modeling accuracy and understanding of the physical process which arises in complex industrial tasks using Euler-Lagrange approach. There were two cases under the study. The first ... -
A Lattice Boltzmann method in generalized curvilinear coordinat
(2019)
Conference report
Open AccessA second-order central time-explicit method is implemented to solve the Lattice Boltzmann Equation in generalized curvilinear coordinates in order to simulate fluid flows with non-uniform grids and curved boundaries. Several ... -
SHSLBM Simulation of Hybrid Nanofluid Thermal Convection at High Rayleigh Numbers
(2019)
Conference report
Open AccessA new method called simplified and highly stable lattice Boltzmann method (SHSLBM) was used to simulate the hybrid nanofluid natural convection and heat transfer in a square enclosure with a heating obstacle at high Rayleigh ... -
Verification and validation of a Lattice Boltzmann method coupled with complex sub-grid scale turbulence models
(2019)
Conference report
Open AccessIn this paper, we present our recent work on single relaxation Lattice Boltzmann method and Large Eddy Simulation (LES) models, namely the dynamic Smagorinsky and wall-adapting local eddy-viscosity (WALE). Initially, forced ... -
A consistent boundary method for the material point method - using imge particles to reduce boundary artefacts
(2019)
Conference report
Open AccessThe material point method (MPM) is a continuum-based numerical method hich discretises the object as material points. It is particulary ell suited for and has shon great success in the community for large deformations. ... -
Numerical modelling of Val d’Arán landslide with Material Point Method
(2019)
Conference report
Open AccessFlow-like landslides in mountainous areas can cause extensive damages due to their high velocity and long run-out distance. This work presents a real case of landslide occurred on 11 May 2018 in Val d’Arán (Catalonia, ... -
Numerical study on load-settlement relationships of shallow foundation under extremely low confining pressure
(2019)
Conference report
Open AccessIn order to investigate the ground behavior under shallow foundation with extremely low confining pressure, numerical analysis has been performed using the Material Point Method. Material Point Method is one of particle-based ... -
Time integration errors and energy conservation properties of the Stormer Verlet method applied to MPM
(2019)
Conference report
Open AccessThe success of the Material Point Method (MPM) in solving many challenging problems nevertheless raises some open questions regarding the fundamental properties of the methodsuchastheenergyconservationsincebeingaddressed ... -
Application of mixed meshless solution procedures for deformation modeling in gradient elasticity
(2019)
Conference report
Open AccessThe present study is related to the utilization of the mixed Meshless Local PetrovGalerkin (MLPG) methods for solving problems in gradient elasticity, which are governed by fourth-order differential equations. Here, three ... -
Difficulties in implementation of viscosity models in the fragmenton-based vortex methods
(2019)
Conference report
Open AccessFragmenton-based lagrangian vortex methods showed their effectiveness for inviscid fluid dynamics problems. However the attempts to extend these methods to viscous flows simulation meet difficulties resulting from nonfulfillment ... -
Numerical experiment of the vortex shedding from an oscillating circular cylinder in a uniform flow by the vortex method
(2019)
Conference report
Open AccessIn this study, the flow features of vortex shedding from a circular cylinder forced-oscillating in the in-line direction were investigated by use of numerical simulation (vortex method) at the Reynolds number Re=500, with ... -
Meshfree simulations for solution mining processes
(2019)
Conference report
Open AccessExperimental and field investigations for solution mining processes have improved intensely within the last years. Due to today’s computing capacities, 3D simulations of potential salt solution caverns can further enhance ... -
Direct Observation and simulation of ladle pouring behaviour in die casting sleeve
(2019)
Conference report
Open AccessThe ladle pouring process is one part of die casting which has the advantages of high speed, good quality and mass production. The molten metal is quickly poured into the sleeve by tilting the ladle, and immediately injected ... -
Granular flow analysis considering soil strength using moving particle simulation method
(2019)
Conference report
Open AccessIn recent years, many sediment-related disasters have occurred in Japan. To predict the sediment flow, granular flow analysis was conducted with the moving particle simulation method, using the viscosity term formulated ... -
Numerical analysis of the eutectic melting and relocation of the b4c control rod materials by the MPFI-MPS method
(2019)
Conference report
Open AccessEutectic melting and subsequent relocation of the boron-carbide (B4C) control rod materials were simulated by a particle method. In the past, it was difficult to simulate the eutectic melting by a particle method because the ... -
Spray Heat Transfer Analysis of Steel Making Process by Using ParticleBased Numerical Simulation
(2019)
Conference report
Open AccessSpray cooling is often used in the steel manufacturing process, and the steel plate temperature at the time of manufacture affects productivity and quality. Therefore, the spray heat transfer coefficient estimation becomes ... -
Two-mass gyro-particle as the tool for supersonic aeroelasticity analysis
(2019)
Conference report
Open AccessThe proposed flutter interpretation is applicable to plasma aeroelasticity analysis. In this case it shall be possible to divide a particle in two, to generate two opposite electric charges and thus ionize the flow. The ... -
Effect of particle diameter on agglomeration dynamics in multiphase turbulent channel flows
(2019)
Conference report
Open AccessThe present work uses a fully coupled direct numerical simulation-Lagrangian particle tracking solver in conjunction with an interaction energy-based deterministic agglomeration algorithm to determine the effect of particle ... -
Flid-solid multiphase flow simulator using a SPH-DEM coupled method in consideration of liquid bridge force related to water content
(2019)
Conference report
Open AccessMost of the recent natural disasters such as landslide and tsunamis are complex phenomena in which fluid, ground, structures, etc. affect each other. Therefore, it is necessary to study from various mechanical viewpoints. ... -
Solid particle interaction dynamics at critical stokes number in isotropic turbulence
(2019)
Conference report
Open AccessBinary solid spherical particle-particle interactions are studied in forced isotropic turbulence at 𝑅𝑅𝑒𝑒𝜆𝜆 = 29 and 197 using direct numerical simulation and an immersed boundary method. Isotropic turbulence in a ... -
Turbulent heat transfer in nanoparticulate multiphase channel flows with a high prandtl number molten salt fluid
(2019)
Conference report
Open AccessThe growing interest in energy efficient and sustainable technologies has created significant demand for novel heat transfer and thermal energy storage materials, such as nanofluids. The importance of nanoparticle science ... -
WCSPH for modelling multiphase flows and natural hazards
(2019)
Conference report
Open AccessAmong the numerous types of meshless particle methods, SPH is successfully applied to simulate complex multiphase flows with impact involving fluids with high-density ratio as well as non-Newtonian fluids. These problems ... -
Comparison of interface models to account for surface tension in SPH method
(2019)
Conference report
Open AccessThe Smoothed Particle Hydrodynamics method (SPH) is a meshfree Lagrangian simulation methodwidely applied for fluid simulations due to the advantages presented by this method for solvingproblems with free and deformable ... -
Damage response of hull structure subjected to contact underwater explosion
(2019)
Conference report
Open AccessA high-pressure shock wave was produced during a process near-field underwater explosion, which led to serious damage into structures. A Smooth Particle Hydrodynamic (SPH) method is suitable for solving problems with large ... -
Evaluation of puddle splash in automotive applications using smoothed particle hydrodynamics
(2019)
Conference report
Open AccessThe impact of splashing water as a car moves through water-soil puddle or flooded areas is significant to the automotive industry. Due to the multifold advantages of simulating this problem, several numerical approaches ... -
Modelling a partially liquid-filled particle damper using coupled lagrangian methods
(2019)
Conference report
Open AccessEnergy dissipation in particle dampers (PDs) is complex and occurs mainly due to the relative motion between particles and to their surroundings. The degree of relative motion is particularly sensitive to changes in the ... -
Monodisperse gas-solid mixtures with intense interphase interaction in two-fluid smoothed particle hydrodynamics
(2019)
Conference report
Open AccessSimulations of gas-solid mixtures are used in many scientific and industrial applications. Two-Fluid Smoothed Particle Hydrodynamics (TFSPH) is an approach when gas and solids are simulated with different sets of particles ... -
Numerical simulation of 2D hydraulic jumps using SPH method
(2019)
Conference report
Open AccessA hydraulic jump that generally occurs in river or spillway is a rapid transition from supercritical to subcritical flow characterized by the development of large-scale turbulence, surface waves, energy dissipation and ... -
Physical reflective boundary conditions applied to smoothed particle hydrodynamics (sph) method for solving fluid dynamics problems in 3-d domains
(2019)
Conference report
Open AccessThis paper aims to present the physical reflective boundary conditions (RBC) in 3-D domains and applications in fluid dynamics problems. Currently, RBC have been used in meshfree particle methods as an attempt to respect ... -
Semi-Decoupled Second-Order Consistency Correction for Smoothed Particle Hydrodynamics
(2019)
Conference report
Open AccessWe present an approximate second-order consistent smoothed particle hydrodynamics method which uses the 1D solutions to approximate the 2D second order derivatives. The numerical tests of the analytic functions show that ... -
Simulation of Fluid Structure Inte actions by using High Order FEM and SPH
(2019)
Conference report
Open AccessThe investigation of fluid structure interactions is crucial in many areas of science and technology. This study presents a robust methodology for studying fluid structure interactions, which is characterized by high ... -
Smoothed particles hydrodynamics simulation of a U-tank in forced motion
(2019)
Conference report
Open AccessThe hydrodynamic forces generated by the water moving inside a U-shaped tank are predicted by using the open-source Smoothed Particle Hydrodynamic (SPH) solver DualSPHysics. In particular the study focuses on the roll ... -
Particle damping for vibration suppression of a clamped plate
(2019)
Conference report
Open AccessIn this paper, analytical and experimental studies of the vibration suppression of a square plate with a particle damper are discussed. The primary objective of this paper is to construct an analytical model to simulate ...