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Published in: Journal of Visualization 1/2019

05-12-2018 | Regular Paper

Extracting mole fraction measurements from the visualization of a shock reflection

Authors: Jeff L. Edwards, W. Schuyler Hinman, Craig T. Johansen

Published in: Journal of Visualization | Issue 1/2019

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Abstract

A novel method of determining the local mole fraction in a binary mixture from the visualization of a shock reflection was developed and tested in a shock tube. Incident and reflected shock wave velocities extracted from high-speed shadowgraphy and surface pressure data obtained from piezoelectric pressure sensors were used in combination with classical shock theory to perform the measurements. The mole fraction was determined from the analysis of the mixture properties, including the specific heat capacity and molecular weight. The sensitivity of measurement uncertainty to the camera resolution and framing rate was analyzed. Based on shock tube tests of helium–nitrogen mixtures, the accuracy of the mole fraction measurement technique is 4%.

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Metadata
Title
Extracting mole fraction measurements from the visualization of a shock reflection
Authors
Jeff L. Edwards
W. Schuyler Hinman
Craig T. Johansen
Publication date
05-12-2018
Publisher
Springer Berlin Heidelberg
Published in
Journal of Visualization / Issue 1/2019
Print ISSN: 1343-8875
Electronic ISSN: 1875-8975
DOI
https://doi.org/10.1007/s12650-018-0527-x

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