Velocity and NO-Lifetime Measurements in an Unseeded Hypersonic Air Flow-Reference-Cited by-同舟云学术

Velocity and NO-Lifetime Measurements in an Unseeded Hypersonic Air Flow

Published:2018-06-26 Issue:12 Volume:140 Page:
ISSN:0098-2202
Container-title:Journal of Fluids Engineering
language:en
Short-container-title:

Author:

Matos Pedro A. de S.¹,Barreta Luiz G.²,Martins Cristiane A.³

Affiliation:

1. Energy, Propulsion and Combustion Laboratory, Department of Propulsion, Aeronautics Institute of Technology, São José dos Campos 12228-900, São Paulo, Brazil; Laboratory of Aerothermodynamics and Hypersonics, Institute for Advanced Studies, São José dos Campos 12228-001, São Paulo, Brazil e-mail:

2. Laboratory of Aerothermodynamics and Hypersonics, Institute for Advanced Studies, São José dos Campos 12228-001, São Paulo, Brazil; Energy, Propulsion and Combustion Laboratory, Department of Propulsion, Aeronautics Institute of Technology, São José dos Campos 12228-900, São Paulo, Brazil e-mail:

3. Energy, Propulsion and Combustion Laboratory, Department of Propulsion, Aeronautics Institute of Technology, São José dos Campos 12228-900, São Paulo, Brazil e-mail:

Abstract

A laser-induced fluorescence (LIF)-based nitric-oxide flow-tagging technique was applied to measure both velocity and NO lifetime in a hypersonic shock tunnel from two experimental test runs. The results were supported by an analytical profile proposed in this paper that provides a way to correct velocity measurements under unknown systematic error sources. This procedure provided velocities with discrepancies lower than 3% for a total of five measurements, and lower than 2% when compared with that obtained from a linear fit. Additionally, the comparison between the proposed and experimental profiles allowed us to obtain the fluorescence NO lifetime from only one image.

Funder

Financiadora de Estudos e Projetos

Publisher

ASME International

Subject

Mechanical Engineering

Link

http://asmedigitalcollection.asme.org/fluidsengineering/article-pdf/doi/10.1115/1.4039863/6059336/fe_140_12_121105.pdf

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