Relevant bibliographies by topics / Particle-wall collision model

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'Particle-wall collision model'

Author: Grafiati
Published: 4 June 2021
Last updated: 19 February 2022

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Journal articles on the topic "Particle-wall collision model"

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Lin, J. H., and K. C. Chang. "Particle Dispersion Simulation in Turbulent Flow Due to Particle-Particle and Particle-Wall Collisions." Journal of Mechanics 32, no. 2 (August 19, 2015): 237–44. http://dx.doi.org/10.1017/jmech.2015.63.

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AbstractSimulation of the 3-D, fully developed turbulent channel flows laden with various mass loading ratios of particles is made using an Eulerian-Lagrangian approach in which the carrier-fluid flow field is solved with a low-Reynolds-number k-ε turbulence model while the deterministic Lagrangian method together with binary-collision hard-sphere model is applied for the solution of particle motion. Effects of inter-particle collisions and particle-wall collisions under different extents of wall roughness on particle dispersion are addressed in the study. A cost-effective searching algorithm
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ARDEKANI, A. M., and R. H. RANGEL. "Numerical investigation of particle–particle and particle–wall collisions in a viscous fluid." Journal of Fluid Mechanics 596 (January 17, 2008): 437–66. http://dx.doi.org/10.1017/s0022112007009688.

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The dynamics of particle–particle collisions and the bouncing motion of a particle colliding with a wall in a viscous fluid is numerically investigated. The dependence of the effective coefficient of restitution on the Stokes number and surface roughness is analysed. A distributed Lagrange multiplier-based computational method in a solid–fluid system is developed and an efficient method for predicting the collision between particles is presented. A comparison between this method and previous collision strategies shows that the present approach has some significant advantages over them. Compari
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Derevich, I. V. "Probabilistic model of a particle-rough wall collision." Journal of Applied Mechanics and Technical Physics 40, no. 5 (September 1999): 989–94. http://dx.doi.org/10.1007/bf02468487.

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Zenit, Roberto, and Melany L. Hunt. "Mechanics of Immersed Particle Collisions." Journal of Fluids Engineering 121, no. 1 (March 1, 1999): 179–84. http://dx.doi.org/10.1115/1.2821999.

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The present work investigates the mechanics of particle collisions submerged in a liquid using a simple pendulum experiment. Particle trajectories for different particles in water are measured using a high-speed digital camera and the magnitude of the collision is recorded using a high-frequency-response pressure transducer at the colliding surface. The particle deceleration occurs at distances less than half a particle diameter from the wall. The measured collision impulse increases with impact velocity and particle mass. Comparisons are drawn between the measured pressures and the prediction
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Lin, Jian-Hung, and Keh-Chin Chang. "A Modeling Study on Particle Dispersion in Wall-Bounded Turbulent Flows." Advances in Applied Mathematics and Mechanics 6, no. 06 (December 2014): 764–82. http://dx.doi.org/10.4208/aamm.2014.m533.

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AbstractThree physical mechanisms which may affect dispersion of particle’s motion in wall-bounded turbulent flows, including the effects of turbulence, wall roughness in particle-wall collisions, and inter-particle collisions, are numerically investigated in this study. Parametric studies with different wall roughness extents and with different mass loading ratios of particles are performed in fully developed channel flows with the Eulerian-Lagrangian approach. A low-Reynolds-numberk–εturbulence model is applied for the solution of the carrier-flow field, while the deterministic Lagrangian me
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Kempe, Tobias, and Jochen Fröhlich. "Collision modelling for the interface-resolved simulation of spherical particles in viscous fluids." Journal of Fluid Mechanics 709 (August 23, 2012): 445–89. http://dx.doi.org/10.1017/jfm.2012.343.

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AbstractThe paper presents a model for particle–particle and particle–wall collisions during interface-resolving numerical simulations of particle-laden flows. The accurate modelling of collisions in this framework is challenging due to methodological problems generated by interface approach and contact as well as due to the greatly different time scales involved. To cope with this situation, multiscale modelling approaches are introduced avoiding excessive local grid refinement during surface approach and time step reduction during the surface contact. A new adaptive model for the normal forc
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Zhang, Xia, and Lixing Zhou. "A second-order moment particle–wall collision model accounting for the wall roughness." Powder Technology 159, no. 2 (November 2005): 111–20. http://dx.doi.org/10.1016/j.powtec.2005.07.005.

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Cheng, Jiarui, Yihua Dou, Ningsheng Zhang, Zhen Li, and Zhiguo Wang. "A New Method for Predicting Erosion Damage of Suddenly Contracted Pipe Impacted by Particle Cluster via CFD-DEM." Materials 11, no. 10 (September 28, 2018): 1858. http://dx.doi.org/10.3390/ma11101858.

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A numerical study on the erosion of particle clusters in an abrupt pipe was conducted by means of the combined computational fluid dynamics (CFD) and discrete element methods (DEM). Furthermore, a particle-wall extrusion model and a criterion for judging particle collision interference were developed to classify and calculate the erosion rate caused by different interparticle collision mechanisms in a cluster. Meanwhile, a full-scale pipe flow experiment was conducted to confirm the effect of a particle cluster on the erosion rate and to verify the calculated results. The reducing wall was mad
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BOURGADE, JEAN-PIERRE. "A COUPLED SPHERICAL HARMONICS EXPANSION MODEL FOR CONFINED PARTICLES." Mathematical Models and Methods in Applied Sciences 14, no. 08 (August 2004): 1133–65. http://dx.doi.org/10.1142/s021820250400357x.

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Our goal in this paper is to derive from a kinetic setting a diffusion model for the transport of charged particles trapped in a surface potential. The so-obtained model is derived through a diffusion approximation, as we assume the thermalization to be governed by particle-wall collisions. In order to take into account the possible inelasticity of such collisions, we introduce a nonlocal (in energy) collision operator on the boundary. At the macroscopic scale, this results in a coupled (in energy) Spherical Harmonics Expansion (SHE) model. The model is both formally and rigorously derived fro
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Gui, Nan, Xingtuan Yang, Jiyuan Tu, and Shengyao Jiang. "A generalized particle-to-wall collision model for non-spherical rigid particles." Advanced Powder Technology 27, no. 1 (January 2016): 154–63. http://dx.doi.org/10.1016/j.apt.2015.12.002.

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Dissertations / Theses on the topic "Particle-wall collision model"

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Tian, Zhaofeng, and rmit tian@gmail com. "Numerical Modelling of Turbulent Gas-Particle Flow and Its Applications." RMIT University. Aerospace, Mechanical and Manufacturing Engineering, 2007. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080528.150211.

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The aim of this thesis is three-fold: i) to investigate the performance of both the Eulerian-Lagrangian model and the Eulerian-Eulerian model to simulate the turbulent gas-particle flow; ii) to investigate the indoor airflows and contaminant particle flows using the Eulerian-Lagrangian model; iii) to develop and validate particle-wall collision models and a wall roughness model for the Eulerian-Lagrangian model and to utilize these models to investigate the effects of wall roughness on the particle flows. Firstly, the Eulerian-Lagrangian model in the software package FLUENT (FLUENT Inc.)
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Conference papers on the topic "Particle-wall collision model"

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Zhang, X., and L. X. Zhou. "Simulation of Gas-Particle Channel Flows Using a Two-Fluid Particle-Wall Collision Model Accounting for Wall Roughness." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45750.

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A two-fluid particle-wall collision model accounting for wall roughness is proposed. It accounts for the effects of wall friction, restitution, in particular the wall roughness, and hence the redistribution of particle Reynolds stresses in different directions at the wall, the absorption of turbulent kinetic energy from the kinetic energy of mean motion at the wall and the attenuation of particle motion by the wall. It gives the effect of wall roughness on the particle turbulence. The proposed model is applied to simulate gas-particle horizontal channel flows and is validated using PDPA measur
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Feng, Zhi-Gang, Efstathis E. Michaelides, and Shaolin Mao. "Simulation of Particle-Wall Collisions in a Viscous Fluid Using a Resolved Discrete Particle Method." In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30268.

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The process of particle-wall collisions is very important in understanding and determining the fluid-particle behavior, especially near walls. Detailed information on particle-wall collisions can provide insight on the formulation of appropriate boundary conditions of the particulate phases in two-fluid models. We have developed a three-dimensional Resolved Discrete Particle Method (RDPM) that is capable of meaningfully handling particle-wall collisions in a viscous fluid. This numerical method makes use of a Finite-Difference method in combination with the Immersed Boundary (IB) method for tr
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Arboleda, Brian Quintero, Zeeshan Qadir, Martin Sommerfeld, and Santiago Lain Beatove. "Modelling the Wall Collision of Regular Non-Spherical Particles and Experimental Validation." In ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/fedsm2014-21610.

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The importance of numerical calculations (CFD) for supporting the optimization and lay-out of industrial processes involving multiphase flows is continuously increasing. Numerous processes in powder technology involve wall-bounded gas-solid flows where wall collisions essentially affect the process performance. In modelling the particle wall-collision process in the frame of numerical computations the general assumption is that the particles are spherical. However, in most practical situations one is dealing with irregular non-spherical particles or particles with a certain shape, such as gran
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Breugem, Wim-Paul. "A Combined Soft-Sphere Collision/Immersed Boundary Method for Resolved Simulations of Particulate Flows." In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30634.

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A second-order accurate and efficient Immersed Boundary Method (IBM) has been developed for simulating particle-laden flows. Recently, this method has been combined with a soft-sphere collision model to accommodate inter-particle and particle-wall collisions. Details of the collision model are given. Results are shown from a lubrication study of non-touching particles at close distance from each other. The numerical results for the drag force acting on the particles agree well with exact solutions, except when the gap width between the particles becomes significantly smaller than the numerical
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Singh, Sukhjinder, and Danesh Tafti. "Predicting the Coefficient of Restitution for Particle Wall Collisions in Gas Turbine Components." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95623.

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Jet engines often operate under hostile conditions and are increasingly exposed to fine particulate matter such as sand, ash and dirt. Large amounts of fine particulate ingestion, sand in particular, can damage different engine components through deposition and erosion. The extent of damage depends on the particle-wall interaction, which is further governed by particle velocity, impact angle, particle size, particle material, target material and target surface roughness. Coefficient of restitution, which is the ratio of rebound velocity to impact velocity, encapsulates the effect of all the en
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Mohaghegh, Fazlolah, and H. S. Udaykumar. "A Simplified Model for the Normal Collision of Arbitrary Shape Particles in a Viscous Flow." In ASME 2017 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fedsm2017-69366.

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Modeling collision of finite size arbitrarily shaped particles is a tedious task because of difficulties in finding the collision parameter for the non-spherical particles. These parameters include the contact point, direction of the collision force and the collision forces and moments. In this paper a new collision algorithm is proposed to simulate collision of arbitrary shape particles to tackle flows containing a large number of particles. A pseudo-potential function is defined to quantify the collision parameters. This potential is defined based on the distance from the particle interface
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Georgiou, D. P., and G. Paleos. "The Particle-Wall, Normal-Impact Collision Coefficient in the Presence of a Liquid Film." In ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/90-gt-168.

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The turbine blades of Gas Turbines operating with “dirty” fuels are sometimes covered by a very thin liquid film, which originates from the condensation of the alkalic sulfates (mainly) in the flue gases. These films may influence drastically the collision coefficient of the impinging (ash) particles. This, in turn, influences the future trajectories of these particles and their adhesive properties, especially in the rotor blades where the Coriolis aceleration becomes a significant factor in the particle kinetic energy absorption process. The study reports on the capture film height and the va
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Kobayashi, Tomonari, Naoki Shimada, and Toshitsugu Tanaka. "DEM-CFD Coupling Simulation of Fluidized Behavior of Geldart’s Group A Particles: A Contact Force Model for Expressing Adhesion Force." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-12011.

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A discrete particle model for flows of Group A particles in Geldart’s classification was studied. In general, Group A particles are fine and light, so that the adhesion force has a strong effect on their fluidization behavior. At first, interparticle adhesion force of Group A particle was measured. The DEM-CFD coupling simulation with the measured adhesion force was performed, and the simulated results were compared with experimental data about a small scale fluidized bed for verification of the simulation. It was found from the results that there were considerable differences between their fl
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Agrawal, Madhusuden, Ahmadreza Haghnegahdar, and Rahul Bharadwaj. "Improved Prediction of Sand Erosion by Accurate Particle Shape Representation in CFD-DEM Modelling." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206122-ms.

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Abstract Predicting accurate erosion rate due to sand particles in oil and gas production is important for maintaining safe and reliable operations while maximizing output efficiency. Computational Fluid Dynamic (CFD) is a powerful tool for erosion prediction as it provides detailed erosion pattern in complex geometry. In an effort to improve accuracy of erosion prediction, this paper proposes an algorithm to accurately represent particle shape in CFD erosion simulation through coupling with Discrete Element Method (DEM) for non-spherical shape particles. The fluid motions are predicted by CFD
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Narayanan, Chidambaram, and Djamel Lakehal. "Four-Way Coupling of Dense Particle Beds of Black Powder in Turbulent Pipe Flows." In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30137.

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The modeling of particle deposition and transport in pipes is one of the most challenging problems in multiphase flow, because the underlying physics is multi-faceted and complex, including turbulence of the carrier phase, particle-turbulence interaction, particle-wall interactions, particle-particle interactions, two-way and four-way couplings, particle agglomeration, deposition and re-suspension. We will discuss these issues and present new routes for the modeling of particle collision stress. Practical examples like black powder deposition and transport in gas pipelines will be presented an
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