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Spray drag effect of fluidized sand for a supersonic vehicle / Lakhdar Remaki; Oubay Hassan; Ben J. Evans; Kenneth Morgan

Journal of Coupled Systems and Multiscale Dynamics, Volume: 2, Issue: 3, Pages: 169 - 177

Swansea University Author: Evans, Ben

DOI (Published version): 10.1166/jcsmd.2014.1052

Abstract

This paper deals with fluidized sand simulation in order to estimate the impact of sand particle motion on the BLOODHOUND SuperSonic Car (SSC) drag forces, such phenomenon is known as a spray drag effect. A gas-particle model is used to simulate the sand particles that rise from the ground because o...

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Published in: Journal of Coupled Systems and Multiscale Dynamics
Published: 2014
URI: https://cronfa.swan.ac.uk/Record/cronfa21090
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Abstract: This paper deals with fluidized sand simulation in order to estimate the impact of sand particle motion on the BLOODHOUND SuperSonic Car (SSC) drag forces, such phenomenon is known as a spray drag effect. A gas-particle model is used to simulate the sand particles that rise from the ground because of the strong shockwave-desert surface interaction. A finite volume scheme is used to discretise the continuous model with a special treatment of the solid phase equations. An indefinitely differentiable and anisotropic limiter to reinforce the method stability and reduce any excessive smearing is applied. To estimate the area where sand particles are detached from the ground, a criterion based on pressure change is proposed. The model is first validated on a curved 90 bend test case with comparison to experimental results and then applied to the supersonic car.
College: College of Engineering
Issue: 3
Start Page: 169
End Page: 177