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

In this work, 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.
Authors:
 [1] ;  [1] ;  [2] ;  [1]
  1. Univ. of Florida, Gainesville, FL (United States). Dept. of Mechanical and Aerospace Engineering
  2. Florida Inst. of Technology, Melbourne, FL (United States). Dept. of Mechanical and Aerospace Engineering
Publication Date:
Grant/Contract Number:
NA0002378; HDTRA1-14-1-0031; HDTRA1-14-1-0028
Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 119; Journal Issue: 10; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Research Org:
Univ. of Florida, Gainesville, FL (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA); Defense Threat Reduction Agency (DTRA)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; supersonics; wave mechanics; flow dynamics; shock waves; fluid dynamics; fluid drag; chemical elements; Mach reflection; crystal structure; acoustics
OSTI Identifier:
1468533
Alternate Identifier(s):
OSTI ID: 1241422

Mehta, Y., Jackson, T. L., Zhang, J., and Balachandar, S.. Numerical investigation of shock interaction with one-dimensional transverse array of particles in air. United States: N. p., Web. doi:10.1063/1.4943616.
Mehta, Y., Jackson, T. L., Zhang, J., & Balachandar, S.. Numerical investigation of shock interaction with one-dimensional transverse array of particles in air. United States. doi:10.1063/1.4943616.
Mehta, Y., Jackson, T. L., Zhang, J., and Balachandar, S.. 2016. "Numerical investigation of shock interaction with one-dimensional transverse array of particles in air". United States. doi:10.1063/1.4943616. https://www.osti.gov/servlets/purl/1468533.
@article{osti_1468533,
title = {Numerical investigation of shock interaction with one-dimensional transverse array of particles in air},
author = {Mehta, Y. and Jackson, T. L. and Zhang, J. and Balachandar, S.},
abstractNote = {In this work, 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.},
doi = {10.1063/1.4943616},
journal = {Journal of Applied Physics},
number = 10,
volume = 119,
place = {United States},
year = {2016},
month = {3}
}