Mass transfer in oscillating flows: Efficient drying via pulse combustors. Final report, January 1988-September 1991
Pulse combustors are known to have high rates of heat and mass transfer in the tailpipe because of velocity oscillations created by the acoustic resonance of the combustor. The results so far reported in the literature are inconclusive. A study of the mass transfer rates in a pulse combustor tailpipe has been conducted. The significant parameters including mean flow rate, frequency and amplitude of pulsation were varied nearly independently and their effects on the mass transfer were investigated. The mass transfer in the tailpipe is found to be enhanced by the oscillations up to a factor of 2 over steady turbulent flow. A correlation for mass transfer in pulsating turbulent flow is developed using a novel approach based on the appropriate microscales of turbulence and guided by the physical insight gained from experiments. The final form of the correlation will be available upon the completion of a doctoral thesis which is being written.
- Research Organization:
- Michigan Univ., Ann Arbor, MI (United States). Dept. of Mechanical Engineering and Applied Mechanics
- OSTI ID:
- 7087646
- Report Number(s):
- PB-92-204403/XAB; CNN: GRI-5088-260-1686
- Resource Relation:
- Other Information: See also PB90-242389. Sponsored by Gas Research Inst., Chicago, IL
- Country of Publication:
- United States
- Language:
- English
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