Specie Concentration and Temperature Measurements in Flow Fields.
PURDUE UNIV LAFAYETTE IND PROJECT SQUID HEADQUARTERS
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The Raman scattering technique and its application to the diagnostics of flow fields is discussed, pointing out a number of important positive, as well as negative, features. It is shown experimentally that this technique is capable of providing not only instantaneously and simultaneously pointwise specie concentration in a mixture of polyatomic gases, as well as their temperature in a quiescent mixture of gases, but also in a flow field without the disturbing effects of probes. It is furthermore shown that utilizing the simple, high power pulse technique, the existence of transient fluctuations in the flow field both in terms of specie concentration and temperature can be easily detected. Furthermore, average type of data as obtained using the chromatographic methods can also be obtained without difficulties. Author
- Fluid Mechanics
- Atomic and Molecular Physics and Spectroscopy