Computer Simulation of a Drop-Shaped Particle Settling in a Newtonian Fluid

De Ming Nie; Meng Jiao Zheng

doi:10.4028/www.scientific.net/AMM.444-445.369

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 444-445Computer Simulation of a Drop-Shaped Particle...

Computer Simulation of a Drop-Shaped Particle Settling in a Newtonian Fluid

Abstract:

This work focuses on the effects of the particle shape factor and blockage ratio on the friction coefficient and drag coefficient of the drop-shaped particle for Reynolds number ranging from 10^-2 to 10²when the particle is settling under gravity. Comparison with the results of a circular particle has also been presented. It has been shown that the particle friction coefficient keeps constant when Reynolds number is below 1, and increases as Reynolds number increasing when Reynolds number is greater than 1. Furthermore, results have also shown that both the friction coefficient and drag coefficient of the circular particle are smaller than those of the drop-shaped one when Reynolds number is below about 30 while bigger than those of drop-shaped one when Reynolds number is larger than 30.

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Periodical:

Applied Mechanics and Materials (Volumes 444-445)

Pages:

369-373

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.444-445.369

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Online since:

October 2013

Authors:

De Ming Nie, Meng Jiao Zheng

Keywords:

Drag Coefficient, Fictitious Domain Method, Lattice Boltzmann Method

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