Aerothermal Considerations for the Design of Two-Phase High Speed Impact Cleansers

Author:

Lear W. E.1,Sherif S. A.1

Affiliation:

1. Department of Mechanical Engineering, University of Florida, 237 MEB, Box 116300, Gainesville, FL 32611-6300

Abstract

An alternative method employed in industrial cleansing applications involves injecting liquid water in a flow of gaseous nitrogen and discharging the mixture through a converging-diverging nozzle onto the surface. This paper is an extension of a previous analysis, which was geared towards understanding the gas/liquid mixture dynamics through the nozzle. The analysis presented here takes into account the effect of the nozzle area ratio and is thus geared towards the nozzle designer and provides additional fundamental insight into the required geometry. [S0098-2202(00)01901-5]

Publisher

ASME International

Subject

Mechanical Engineering

Reference12 articles.

1. Sherif, S. A., 1993, “Optimization Analysis of Supersonic Flow of Nitrogen/Water Mixtures Through Converging-Diverging Nozzles,” 1993 Research Report, NASA/ASEE Summer Faculty Fellowship Program, E. R. Hosler, C. Valdes, and T. Brown, eds., NASA Contractor Report No. CR-194678 (Supplement 11), Grant No. NASA-KSC-NGT-60002, National Aeronautics and Space Administration John F. Kennedy Space Center, Cape Canaveral, FL.

2. Sherif, S. A., Lear, W. E., and Winowich, N. S., 1994, “Effect of Slip Velocity and Heat Transfer on the Condensed Phase Momentum Flux of Supersonic Nozzle Flows,” Industrial and Environmental Applications of Fluid Nachanices 1994, FED-186, Morrow, T. B., Horii, K., Elger, D. F., and Marshall, L. R., eds., June, pp. 165–174.

3. Finnie, I. , 1972, “Some Observations on the Erosion of Ductile Metals,” Wear, 19, pp. 81–90.

4. Klausner, J. F., Mei, R., Near, S., and Stith, R., 1998, “Two-Phase Jet Impingement for Non-Volatile Residue Removal,” Proceedings of the Institution of Mechanical Engineers—Part E, Vol. 212, pp. 271–279.

5. Caimi, R. E., and Thaxton, E. T., 1993, “Supersonic Gas-Liquid Cleaning System,” Proceedings of the Technology 2003 Conference, NASA Conference Publication 3249, Vol. 1, Anaheim, CA, Dec. 7–9, pp. 232–240.

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