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Title: Simultaneous concentration and velocity field measurements in a shock-accelerated mixing layer

Abstract

Here, a novel technique to obtain simultaneous velocity and concentration measurements is applied to the Richtmyer–Meshkov instability. After acceleration by a Mach 2.2 shock wave, the interface between the two gases develops into a turbulent mixing layer. A time-separated pair of acetone planar laser-induced fluorescence images are processed to yield concentration and, through application of the Advection-Corrected Correlation Image Velocimetry technique, velocity fields. This is the first application of this technique to shock-accelerated flows. We show that when applied to numerical simulations, this technique reproduces the velocity field to a similar quality as particle image velocimetry. When applied to the turbulent mixing layer of the experiments, information about the Reynolds number and anisotropy of the flow is obtained.

Authors:
 [1];  [1];  [1];  [2];  [3];  [1]
  1. Univ. of Wisconsin, Madison, WI (United States). Dept. of Engineering Physics
  2. Univ. of Wisconsin, Madison, WI (United States). Dept. of Mechanical Engineering
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1489506
Grant/Contract Number:  
NA0001980
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Experiments in Fluids
Additional Journal Information:
Journal Volume: 55; Journal Issue: 10; Journal ID: ISSN 0723-4864
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Reese, Daniel, Oakley, Jason, Navarro-Nunez, Alonso, Rothamer, David, Weber, Chris, and Bonazza, Riccardo. Simultaneous concentration and velocity field measurements in a shock-accelerated mixing layer. United States: N. p., 2014. Web. doi:10.1007/s00348-014-1823-4.
Reese, Daniel, Oakley, Jason, Navarro-Nunez, Alonso, Rothamer, David, Weber, Chris, & Bonazza, Riccardo. Simultaneous concentration and velocity field measurements in a shock-accelerated mixing layer. United States. doi:10.1007/s00348-014-1823-4.
Reese, Daniel, Oakley, Jason, Navarro-Nunez, Alonso, Rothamer, David, Weber, Chris, and Bonazza, Riccardo. Tue . "Simultaneous concentration and velocity field measurements in a shock-accelerated mixing layer". United States. doi:10.1007/s00348-014-1823-4. https://www.osti.gov/servlets/purl/1489506.
@article{osti_1489506,
title = {Simultaneous concentration and velocity field measurements in a shock-accelerated mixing layer},
author = {Reese, Daniel and Oakley, Jason and Navarro-Nunez, Alonso and Rothamer, David and Weber, Chris and Bonazza, Riccardo},
abstractNote = {Here, a novel technique to obtain simultaneous velocity and concentration measurements is applied to the Richtmyer–Meshkov instability. After acceleration by a Mach 2.2 shock wave, the interface between the two gases develops into a turbulent mixing layer. A time-separated pair of acetone planar laser-induced fluorescence images are processed to yield concentration and, through application of the Advection-Corrected Correlation Image Velocimetry technique, velocity fields. This is the first application of this technique to shock-accelerated flows. We show that when applied to numerical simulations, this technique reproduces the velocity field to a similar quality as particle image velocimetry. When applied to the turbulent mixing layer of the experiments, information about the Reynolds number and anisotropy of the flow is obtained.},
doi = {10.1007/s00348-014-1823-4},
journal = {Experiments in Fluids},
issn = {0723-4864},
number = 10,
volume = 55,
place = {United States},
year = {2014},
month = {9}
}

Journal Article:
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Cited by: 3 works
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Figures / Tables:

Fig. 1 Fig. 1: a Experimental setup. b Initial condition image corrected to show relative acetone concentration with flow direction from left to right

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