Mobile CARS - IRS instrument for simultaneous spectroscopic measurement of multiple properties in gaseous flows

D. Bivolaru*, J. W. Lee, S. B. Jones, S. Tedder, P. M. Danehy, M. C. Weikl, G. Magnotti, A. D. Cutler

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

This paper describes a measurement system based on the dual-pump coherent anti-Stok.es Raman spectroscopy (CARS) and interferometric Rayleigh scattering (IRS) methods. The IRS measurement is performed simultaneously with the CARS measurement using a common green laser beam as a narrow-band light source. The mobile CARS-IRS instrument is designed for the use both in laboratories as well as in ground-based combustion test facilities. Furthermore, it is designed to be easily transported between laboratory and test facility. It performs single-point spatially and temporally resolved simultaneous measurements of temperature, species mole fraction of N2, O2, and H 2, and two-components of velocity. A mobile laser system can be placed inside or outside the test facility, while a beam receiving and monitoring system is placed near the measurement location. Measurements in a laboratory small-scale Mach 1.6 H2-air combustion-heated supersonic jet were performed to test the capability of the system. Final setup and pretests of a larger scale reacting jet are ongoing at NASA Langley Research Center's Direct Connect Supersonic Combustor Test Facility (DCSCTF).

Original languageEnglish (US)
Title of host publication2007 22nd International Congress on Instrumentation in Aerospace Simulation Facilities, ICIASF
DOIs
StatePublished - Dec 1 2007
Event2007 22nd International Congress on Instrumentation in Aerospace Simulation Facilities, ICIASF - Pacific Grove, CA, United States
Duration: Jun 10 2007Jun 14 2007

Publication series

NameICIASF Record, International Congress on Instrumentation in Aerospace Simulation Facilities
ISSN (Print)0730-2010

Other

Other2007 22nd International Congress on Instrumentation in Aerospace Simulation Facilities, ICIASF
CountryUnited States
CityPacific Grove, CA
Period06/10/0706/14/07

ASJC Scopus subject areas

  • Instrumentation
  • Aerospace Engineering
  • Condensed Matter Physics

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