Results 261 to 270 of about 1,162,554 (311)

CFD-DEM Modelling: Clogging of Triplet Particles in a Microchannel With a Constriction

2021 IEEE 6th International Forum on Research and Technology for Society and Industry (RTSI), 2021
Clogging represents an important issue in the field of chemical engineering, particularly concerning microfluidic technologies such as microreactors. This phenomenon consists in the the interruption of the flow in confined geometries due to the complete blockage of the channel cross-section. Since experiments can be expensive and difficult to implement,
Dauphin M., Trofa M., Maffettone P. L.
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Efficient parallel CFD-DEM simulations using OpenMP

Journal of Computational Physics, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Amit Amritkar, Surya Deb, Danesh K. Tafti   +2 more
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CFD-DEM simulations in water channel flow

AIP Conference Proceedings, 2020
On the basis of two way coupling approach numerical simulations of particle movement in water channel flow is presented. The movement of the particles is simulated by the EDEM software and the water flow is simulated by a standard k-epsilon model. Two shapes of the particles were used - spherical and oval-shaped. The flow Reynolds number was Re=27000.
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CFD-DEM simulations of particulate fouling in microchannels

Chemical Engineering Journal, 2019
Abstract One of the critical issues encountered when particle suspensions are made to flow in microfluidic devices is the adhesion of the suspended particles on the channel surfaces. This process, known as fouling, may lead to a progressive growth of clusters attached to the walls and, possibly, to a complete clogging of the microchannel.
Trofa, Marco, D'Avino, Gaetano, Sicignano, Luca, Tomaiuolo, Giovanna, Greco, Francesco, Maffettone, Pier Luca, Guido, Stefano   +6 more
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Validation of CFD+DEM Against Measured Data

Volume 8: Ian Jordaan Honoring Symposium on Ice Engineering, 2015
In this paper the author attempts to validate the ability of CFD and DEM to predict the added resistance due to brash ice. For this, a comparison is made between measured data and computational results. In addition, the paper provides details on the computational effort required.
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On the Improvement of CFD-DEM Coarse Graining Predictions

Volume 1B, Symposia: Fluid Mechanics (Fundamental Issues and Perspectives; Industrial and Environmental Applications); Multiphase Flow and Systems (Multiscale Methods; Noninvasive Measurements; Numerical Methods; Heat Transfer; Performance); Transport Phenomena (Clean Energy; Mixing; Manufacturing and Materials Processing); Turbulent Flows — Issues and Perspectives; Algorithms and Applications for High Performance CFD Computation; Fluid Power; Fluid Dynamics of Wind Energy; Marine Hydrodynamics, 2016
Discrete Element Method (DEM) coupled to Computational Fluid Mechanics (CFD) is a powerful tool for simulating complex multiphase flows. The cost of this Eulerian-Lagrangian description, however, increases with the increase of the number of particles ∼O(Np) which limit its use in natural and industrial scale systems.
Husam Elghannay, Kuahai Yu, Danesh Tafti
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Parallel CFD-DEM for Fluid-Particle Systems

Volume 3, 2004
This paper presents numerical methods and parallel algorithms for modeling the fluid-particle flow in gas fluidization of multi-sized particles. This work involves combined Computational Fluid Dynamics (CFD) and Discrete Element Method (DEM) to describe continuum flow of fluids and discrete flow of solid particles, respectively.
Xiang Zhao, Jun Wang, Sijun Zhang
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Numerical Investigations of the Extraction of Submerged Foundations by Coupled CFD-DEM

Volume 9: Offshore Geotechnics; Torgeir Moan Honoring Symposium, 2017
Offshore structures are founded on submerged foundations. The excavation of submerged foundations in the sea bed is a difficult task to accomplish when it comes to the decommissioning of these offshore structures. The extraction resistance is a lot higher than the pressure acting on the structure due to hydrostatic pressure, earth pressure and its self-
Kanitz, Manuela, Grabe, Jürgen, Hager, Alice, Goniva, Christoph, Kloss, Christoph   +4 more
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CFD-DEM MODELLING AND ANALYSIS OF HYDRAULIC CONVEYING

2020
In this thesis work, a coupling method of computational fluid dynamics (CFD) and discrete element method (DEM) is successfully applied to simulate the process of hydraulic conveying. The fundamentals governing the complex liquid-solid flow and performance of hydraulic conveying are systematically analysed in terms of particle-particle, particle-fluid ...
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Accounting for Particle Morphology in CFD-DEM Modelling

Proceedings of the 2024 UK Association for Computational Mechanics Conference
In this study, the drag force acting on real irregular particles with various morphologies belonging to the four shape categories of the Zingg chart is estimated using the empirical models proposed in literature and the results are compared to the drag force obtained through computational fluid dynamics (CFD).
Sadaf Maramizonouz, Sadegh Nadimi
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