Diode laser measurements for DDDAS: Flowfield reconstruction using dynamic experimental and numerical data

Q. Ma, Y. Luo, T. Rossmann, D. Knight, Y. Jaluria

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

A Dynamic Data Driven Application Systems (DDDAS) approach Is developed for evaluation of fluid-thermal systems wherein a complete specification of the boundary conditions is not known a priori and experimental diagnostics are restricted to a limited region of the flowfield. The methodology is applied to the configuration of a heated jet injected into a laminar boundary layer where the jet temperature is an unknown. Diode laser absorption measurements near 761 nm of molecular oxygen are recorded at 400Hz to characterize the time varying temperature of the two dimensional jet. Agreement between the CFD simulation and experimental data is good for average and RMS (root meet square) temperature fluctuations, and show very good correlation between the frequency spectra, especially nearer the injection point.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 25th AIAA Aerodynamic Measurement Technology and Ground Testing Conference
Pages322-332
Number of pages11
StatePublished - 2006
Event25th AIAA Aerodynamic Measurement Technology and Ground Testing Conference - San Francisco, CA, United States
Duration: Jun 5 2006Jun 8 2006

Publication series

NameCollection of Technical Papers - 25th AIAA Aerodynamic Measurement Technology and Ground Testing Conference
Volume1

Other

Other25th AIAA Aerodynamic Measurement Technology and Ground Testing Conference
Country/TerritoryUnited States
CitySan Francisco, CA
Period6/5/066/8/06

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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