- Author
-
Chabay, I.
|
Rosasco, G. J.
|
Kashiwagi, T.
- Title
- Species-Specific Raman Spectroscopic Measurements of Concentration Fluctuations in Unsteady Flow.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
- Journal
-
Journal of Chemical Physics,
Vol. 70,
No. 9,
4149-4154,
May 1, 1979
- Keywords
-
spectroscopy
|
gas flow
|
turbulence
|
unsteady flows
|
predictive models
|
combustion
- Identifiers
- spectroscopic measurements
- Abstract
- Concentration fluctuation of specific chemical species in unsteady mixed gas flow were studied by fast Fourier transform (FFT) analysis of Raman intensity. Average concentration and the amplitude and frequency distribution of fluctuations about that average (at a specific Raman shift) can be determined by the FFT/Raman technique.