Improved scaling laws for the shockinduced dispersal of a dense particle curtain
Abstract
Here, experiments were performed within Sandia National Labs’ Multiphase Shock Tube to measure and quantify the shockinduced dispersal of a shock/dense particle curtain interaction. Following interaction with a planar travelling shock wave, schlieren imaging at 75 kHz was used to track the upstream and downstream edges of the curtain. Data were obtained for two particle diameter ranges ($$d_{p}=106{}125$$,$$300{}355~\unicode[STIX]{x03BC}\text{m}$$) across Mach numbers ranging from 1.24 to 2.02. Using these data, along with data compiled from the literature, the dispersion of a dense curtain was studied for multiple Mach numbers (1.2–2.6), particle sizes ($$100{}1000~\unicode[STIX]{x03BC}\text{m}$$) and volume fractions (9–32 %). Data were nondimensionalized according to two different scaling methods found within the literature, with time scales defined based on either particle propagation time or pressure ratio across a reflected shock. The data refelct that spreading of the particle curtain is a function of the volume fraction, with the effectiveness of each time scale based on the proximity of a given curtain’s volume fraction to the dilute mixture regime. It is observed that volume fraction corrections applied to a traditional particle propagation time scale result in the best collapse of the data between the two time scales tested here. In addition, a constantthickness regime has been identified, which has not been noted within previous literature.
 Authors:

 Rutgers Univ., Piscataway, NJ (United States)
 Sandia National Lab. (SNLNM), Albuquerque, NM (United States)
 North Carolina State Univ., Raleigh, NC (United States)
 Publication Date:
 Research Org.:
 Sandia National Lab. (SNLNM), Albuquerque, NM (United States)
 Sponsoring Org.:
 USDOE National Nuclear Security Administration (NNSA)
 OSTI Identifier:
 1575276
 Report Number(s):
 SAND201811568J
Journal ID: ISSN 00221120; 672096
 Grant/Contract Number:
 AC0494AL85000; NA0003525
 Resource Type:
 Accepted Manuscript
 Journal Name:
 Journal of Fluid Mechanics
 Additional Journal Information:
 Journal Volume: 876; Journal ID: ISSN 00221120
 Publisher:
 Cambridge University Press
 Country of Publication:
 United States
 Language:
 English
 Subject:
 42 ENGINEERING
Citation Formats
DeMauro, Edward P., Wagner, Justin L., DeChant, Lawrence J., Beresh, Steven J., and Turpin, Aaron M. Improved scaling laws for the shockinduced dispersal of a dense particle curtain. United States: N. p., 2019.
Web. doi:10.1017/jfm.2019.550.
DeMauro, Edward P., Wagner, Justin L., DeChant, Lawrence J., Beresh, Steven J., & Turpin, Aaron M. Improved scaling laws for the shockinduced dispersal of a dense particle curtain. United States. doi:10.1017/jfm.2019.550.
DeMauro, Edward P., Wagner, Justin L., DeChant, Lawrence J., Beresh, Steven J., and Turpin, Aaron M. Thu .
"Improved scaling laws for the shockinduced dispersal of a dense particle curtain". United States. doi:10.1017/jfm.2019.550. https://www.osti.gov/servlets/purl/1575276.
@article{osti_1575276,
title = {Improved scaling laws for the shockinduced dispersal of a dense particle curtain},
author = {DeMauro, Edward P. and Wagner, Justin L. and DeChant, Lawrence J. and Beresh, Steven J. and Turpin, Aaron M.},
abstractNote = {Here, experiments were performed within Sandia National Labs’ Multiphase Shock Tube to measure and quantify the shockinduced dispersal of a shock/dense particle curtain interaction. Following interaction with a planar travelling shock wave, schlieren imaging at 75 kHz was used to track the upstream and downstream edges of the curtain. Data were obtained for two particle diameter ranges ($d_{p}=106{}125$,$300{}355~\unicode[STIX]{x03BC}\text{m}$) across Mach numbers ranging from 1.24 to 2.02. Using these data, along with data compiled from the literature, the dispersion of a dense curtain was studied for multiple Mach numbers (1.2–2.6), particle sizes ($100{}1000~\unicode[STIX]{x03BC}\text{m}$) and volume fractions (9–32 %). Data were nondimensionalized according to two different scaling methods found within the literature, with time scales defined based on either particle propagation time or pressure ratio across a reflected shock. The data refelct that spreading of the particle curtain is a function of the volume fraction, with the effectiveness of each time scale based on the proximity of a given curtain’s volume fraction to the dilute mixture regime. It is observed that volume fraction corrections applied to a traditional particle propagation time scale result in the best collapse of the data between the two time scales tested here. In addition, a constantthickness regime has been identified, which has not been noted within previous literature.},
doi = {10.1017/jfm.2019.550},
journal = {Journal of Fluid Mechanics},
number = ,
volume = 876,
place = {United States},
year = {2019},
month = {10}
}
Web of Science
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