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Title: MIX and Instability Growth from Oblique Shock

Abstract

We have studied the formation and evolution of shock-induced mix resulting from interface features in a divergent cylindrical geometry. In this research a cylindrical core of high-explosive was detonated to create an oblique shock wave and accelerate the interface. The interfaces studied were between the high-explosive/aluminum, aluminum/plastic, and finally plastic/air. Pre-emplaced surface features added to the aluminum were used to modify this interface. Time sequence radiographic imaging quantified the resulting instability formation from the growth phase to over 60 {micro}s post-detonation. Thus allowing the study of the onset of mix and evolution to turbulence. The plastic used here was porous polyethylene. Radiographic image data are compared with numerical simulations of the experiments.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1022917
Report Number(s):
LLNL-PROC-491379
TRN: US201118%%598
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Presented at: 17th Biennial International Conference of the APS Topical Group on Shock Compression of Condensed Matter, Chicago, IL, United States, Jun 26 - Jul 01, 2011
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALUMINIUM; COMPRESSION; GEOMETRY; HYDRODYNAMICS; INSTABILITY; PLASTICS; SHOCK WAVES; TURBULENCE

Citation Formats

Molitoris, J D, Batteux, J D, Garza, R G, Tringe, J W, Souers, P C, and Forbes, J W. MIX and Instability Growth from Oblique Shock. United States: N. p., 2011. Web.
Molitoris, J D, Batteux, J D, Garza, R G, Tringe, J W, Souers, P C, & Forbes, J W. MIX and Instability Growth from Oblique Shock. United States.
Molitoris, J D, Batteux, J D, Garza, R G, Tringe, J W, Souers, P C, and Forbes, J W. Fri . "MIX and Instability Growth from Oblique Shock". United States. https://www.osti.gov/servlets/purl/1022917.
@article{osti_1022917,
title = {MIX and Instability Growth from Oblique Shock},
author = {Molitoris, J D and Batteux, J D and Garza, R G and Tringe, J W and Souers, P C and Forbes, J W},
abstractNote = {We have studied the formation and evolution of shock-induced mix resulting from interface features in a divergent cylindrical geometry. In this research a cylindrical core of high-explosive was detonated to create an oblique shock wave and accelerate the interface. The interfaces studied were between the high-explosive/aluminum, aluminum/plastic, and finally plastic/air. Pre-emplaced surface features added to the aluminum were used to modify this interface. Time sequence radiographic imaging quantified the resulting instability formation from the growth phase to over 60 {micro}s post-detonation. Thus allowing the study of the onset of mix and evolution to turbulence. The plastic used here was porous polyethylene. Radiographic image data are compared with numerical simulations of the experiments.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {7}
}

Conference:
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