Progress of pressure measurements using filtered rayleigh scattering

David Feng; Benjamin M. Goldberg; Mikhail N. Shneider; Richard B. Miles

doi:10.2514/6.2019-1327

Progress of pressure measurements using filtered rayleigh scattering

David Feng, Benjamin M. Goldberg, Mikhail N. Shneider, Richard B. Miles

Mechanical & Aerospace Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

A filtered Rayleigh scattering (FRS) approach is modeled for imaging the two dimensional pressure field of a nanosecond laser spark generated blast wave between 2-10� after formation. Modeling shows conditions for which the FRS signal sensitivity to temperature and velocity are significantly reduced, leaving only sensitivity to pressure. In addition, FRS signal measurements shows the ability to further correct for velocity effects by taking advantage of the laser spark symmetry. Experimental results for the blast wave (for pressure) and a hot jet flow (for temperature) are shown and discussed. A strategy is described with parameters of the experimental configuration to reproduce the modeling conditions for pressure sensitivity and reduced temperature/velocity sensitivity.

Original language	English (US)
Title of host publication	AIAA Scitech 2019 Forum
Publisher	American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)	9781624105784
DOIs	https://doi.org/10.2514/6.2019-1327
State	Published - 2019
Event	AIAA Scitech Forum, 2019 - San Diego, United States Duration: Jan 7 2019 → Jan 11 2019

Publication series

Name	AIAA Scitech 2019 Forum

Conference

Conference	AIAA Scitech Forum, 2019
Country/Territory	United States
City	San Diego
Period	1/7/19 → 1/11/19

All Science Journal Classification (ASJC) codes

Aerospace Engineering

Access to Document

10.2514/6.2019-1327

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@inproceedings{838b9849ba2f4be2aca38486b3793850,

title = "Progress of pressure measurements using filtered rayleigh scattering",

abstract = "A filtered Rayleigh scattering (FRS) approach is modeled for imaging the two dimensional pressure field of a nanosecond laser spark generated blast wave between 2-10� after formation. Modeling shows conditions for which the FRS signal sensitivity to temperature and velocity are significantly reduced, leaving only sensitivity to pressure. In addition, FRS signal measurements shows the ability to further correct for velocity effects by taking advantage of the laser spark symmetry. Experimental results for the blast wave (for pressure) and a hot jet flow (for temperature) are shown and discussed. A strategy is described with parameters of the experimental configuration to reproduce the modeling conditions for pressure sensitivity and reduced temperature/velocity sensitivity.",

author = "David Feng and Goldberg, {Benjamin M.} and Shneider, {Mikhail N.} and Miles, {Richard B.}",

note = "Publisher Copyright: {\textcopyright} 2019, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.; AIAA Scitech Forum, 2019 ; Conference date: 07-01-2019 Through 11-01-2019",

year = "2019",

doi = "10.2514/6.2019-1327",

language = "English (US)",

isbn = "9781624105784",

series = "AIAA Scitech 2019 Forum",

publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",

booktitle = "AIAA Scitech 2019 Forum",

}

TY - GEN

T1 - Progress of pressure measurements using filtered rayleigh scattering

AU - Feng, David

AU - Goldberg, Benjamin M.

AU - Shneider, Mikhail N.

AU - Miles, Richard B.

PY - 2019

Y1 - 2019

N2 - A filtered Rayleigh scattering (FRS) approach is modeled for imaging the two dimensional pressure field of a nanosecond laser spark generated blast wave between 2-10� after formation. Modeling shows conditions for which the FRS signal sensitivity to temperature and velocity are significantly reduced, leaving only sensitivity to pressure. In addition, FRS signal measurements shows the ability to further correct for velocity effects by taking advantage of the laser spark symmetry. Experimental results for the blast wave (for pressure) and a hot jet flow (for temperature) are shown and discussed. A strategy is described with parameters of the experimental configuration to reproduce the modeling conditions for pressure sensitivity and reduced temperature/velocity sensitivity.

AB - A filtered Rayleigh scattering (FRS) approach is modeled for imaging the two dimensional pressure field of a nanosecond laser spark generated blast wave between 2-10� after formation. Modeling shows conditions for which the FRS signal sensitivity to temperature and velocity are significantly reduced, leaving only sensitivity to pressure. In addition, FRS signal measurements shows the ability to further correct for velocity effects by taking advantage of the laser spark symmetry. Experimental results for the blast wave (for pressure) and a hot jet flow (for temperature) are shown and discussed. A strategy is described with parameters of the experimental configuration to reproduce the modeling conditions for pressure sensitivity and reduced temperature/velocity sensitivity.

UR - http://www.scopus.com/inward/record.url?scp=85083942391&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85083942391&partnerID=8YFLogxK

U2 - 10.2514/6.2019-1327

DO - 10.2514/6.2019-1327

M3 - Conference contribution

AN - SCOPUS:85083942391

SN - 9781624105784

T3 - AIAA Scitech 2019 Forum

BT - AIAA Scitech 2019 Forum

PB - American Institute of Aeronautics and Astronautics Inc, AIAA

T2 - AIAA Scitech Forum, 2019

Y2 - 7 January 2019 through 11 January 2019

ER -

Progress of pressure measurements using filtered rayleigh scattering

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