Numerical investigation of shock interaction with one-dimensional transverse array of particles in air

Journal Article · Mon Mar 14 00:00:00 EDT 2016 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4943616· OSTI ID:22596882

Mehta, Y.; Balachandar, S. ^[1]; Zhang, J. ^[2]

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1. Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611 (United States)
2. Department of Mechanical and Aerospace Engineering, Florida Institute of Technology, Melbourne, Florida 32901 (United States)

In this paper, we present numerical simulations of shock propagation in air over a one-dimensional transverse array of particles. Simulations are carried out by varying the particle spacing and shock Mach number. We compute the unsteady inviscid drag coefficient as a function of time and make relevant comparisons to that for a single particle. We find that deviations in the drag coefficient in time from that of a single particle can be correlated to the acoustic-particle interaction time. Finally, we investigate and classify the interaction of the bow shocks in front of the transverse array of particles.

• OSTI ID: 22596882
• Journal Information: Journal of Applied Physics, Vol. 119, Issue 10; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
42 ENGINEERING
AIR
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
DRAG
MACH NUMBER
ONE-DIMENSIONAL CALCULATIONS
PARTICLE INTERACTIONS
PARTICLES
SHOCK WAVES
TIME DEPENDENCE