Abstract
We present an explicit finite-difference scheme for direct simulation of the motion of solid particles in a fluid. The method is based on a second-order MacCormack finitedifference solver for the flow, and Newton’s equations for the particles. The fluid is modeled with fully compressible mass and momentum balances; the technique is intended to be used at moderate particle Reynolds number. Several examples are shown, including a single stationary circular particle in a uniform flow between two moving walls, a particle dropped in a stationary fluid at particle Reynolds number of 20, the drafting, kissing, and tumbling of two particles, and 100 particles falling in a closed box.
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© 2006 Springer
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Perrin, A., Hu, H.H. (2006). An Explicit Finite-Difference Scheme for Simulation of Moving Particles. In: Balachandar, S., Prosperetti, A. (eds) IUTAM Symposium on Computational Approaches to Multiphase Flow. Fluid Mechanics and Its Applications, vol 81. Springer, Dordrecht. https://doi.org/10.1007/1-4020-4977-3_17
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DOI: https://doi.org/10.1007/1-4020-4977-3_17
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-4976-7
Online ISBN: 978-1-4020-4977-4
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