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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