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Unsteady drag following shock wave impingement on a dense particle curtain measured using pulse-burst PIV

Journal Article · · Physical Review Fluids
 [1];  [2];  [2];  [2]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); The State Univ. of New Jersey, Piscataway, NJ (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

High-speed, time-resolved particle image velocimetry with a pulse-burst laser was used to measure the gas-phase velocity upstream and downstream of a shock wave–particle curtain interaction at three shock Mach numbers (1.22, 1.40, and 1.45) at a repetition rate of 37.5 kHz. The particle curtain was formed from free-falling soda-lime particles resulting in volume fractions of 9% or 23% at mid-height, depending on particle diameter (106–125 and 300–355 μm, respectively). Following impingement by a shock wave, a pressure difference was created between the upstream and downstream sides of the curtain, which accelerated flow through the curtain. Jetting of flow through the curtain was observed downstream once deformation of the curtain began, demonstrating a long-term unsteady effect. Using a control volume approach, the unsteady drag on the curtain was estimated from velocity and pressure data. The drag imposed on the curtain has a strong volume fraction dependence with a prolonged unsteadiness following initial shock impingement. Additionally, the data suggest that the resulting pressure difference following the propagation of the reflected and transmitted shock waves is the primary component to curtain drag.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1369445
Alternate ID(s):
OSTI ID: 1372579
Report Number(s):
SAND--2016-9476J; 647669
Journal Information:
Physical Review Fluids, Journal Name: Physical Review Fluids Journal Issue: 6 Vol. 2; ISSN 2469-990X
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (6)

Numerical investigation of the interaction between a shock wave and a particle cloud curtain using a CFD–DEM model journal December 2018
Simulation-driven design of experiments examining the large-scale, explosive dispersal of particles journal October 2019
Improved scaling laws for the shock-induced dispersal of a dense particle curtain journal August 2019
A mesoscale study on explosively dispersed granular material using direct simulation journal June 2019
‘Postage-stamp PIV’: small velocity fields at 400 kHz for turbulence spectra measurements journal February 2018
Particle-resolved simulations of shock-induced flow through particle clouds at different Reynolds numbers journal January 2020

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