Mixing efficiency measurements using a modified cold chemistry technique

Mixing efficiency measurements using a modified cold chemistry technique The efficient mixing of fluids in compressible shear layers is still of fundamental importance to high-speed propulsion. To further understand the role of compressibility, measurements of mixing efficiency are performed in a convective Mach number=2.64 shear layer. The mean scalar field and estimated mixing efficiency are measured using a new “cold chemistry” technique utilizing the quenching of nitric oxide laser-induced fluorescence to mark regions of molecularly mixed fluid. Several different quenching partners are used to achieve statistically converged results using fewer images than previous techniques. The mixing efficiency (δ m/δ) measured in this study at a Reynolds number of 1.9×106 is 0.64, following an increasing trend with both Reynolds number and compressibility when taken with previously measured cold chemistry results. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Mixing efficiency measurements using a modified cold chemistry technique

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Publisher
Springer-Verlag
Copyright
Copyright © 2004 by Springer-Verlag
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-004-0851-x
Publisher site
See Article on Publisher Site

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