Past Sponsor: NASA Microgravity Fluid Physics Program

Graduate Students: Basar Ozar (M.S. in ME 2002), Saptarshi Basu (Ph.D. candidate), Gregory Quinn (PhD. Candidate)

Project Summary

An experimental and computational study of hydrodynamics and heat transfer in a thin liquid film flowing over a rotating disk surface have been undertaken for both constant wall temperature and constant wall heat flux boundary conditions. Experiments involved measurement of liquid film thickness distributions and Nusselt number profiles in a unique rotating disk heat transfer apparatus.

In parallel to the experiments, both numerical and boundary layer integral modeling of the problem were conducted to allow a more in-depth understanding of the flow and heat transfer phenomena in rotating thin liquid films as a means of improving the heat exchange effectiveness in space applications.

Publications

Ozar, B., Faghri A. and Cetegen, B. M., “Experiments on the flow of a thin liquid film over a horizontal stationary and rotating disk surface,” Experiments in Fluids, Vol. 34, pp. 556-565, 2003

Ozar, B., Cetegen, B. M. and Faghri, A., “Experiments on heat transfer in a thin liquid film flowing over a rotating disk,” ASME Journal of Heat Transfer, Vol. 126, pp. 184 – 192, 2004

Rice, J., Faghri, A., Cetegen, B. M., “Analysis of a free surface film from a controlled liquid impingement jet over a rotating disk including conjugate effects with and without evaporation,” International Journal of Heat and Mass Transfer, Vol. 48, pp. 5192-5204, 2005

Basu, S. and Cetegen, B. M. “Analysis of hydrodynamics and heat transfer in a thin liquid film flowing over a rotating disk by integral method,” ASME Journal of Heat Transfer, Vol. 128, pp 217-225, 2006

Basu, S. and Cetegen, B. M. “Effect of hydraulic jump on the hydrodynamics and heat transfer in a thin liquid film flowing over a rotating disk”, ASME Journal of Heat Transfer, to appear in May 2007