HEAT TRANSFER STUDIES OF WATER-SPRAY FLOWS,
Abstract
An experimental investigation into the heat-transfer characteristics of two-component, two-phase flows about a cylinder is described. Heat-transfer coefficients were measured at various positions around the periphery of the cylinder with systematic variations of cooling stream velocity, droplet size, and liquid-gas mass-ratio. The two-component cooling stream was a mixture of water droplets in air. An analysis of the heat-transfer characteristics over the front half of the cylinder, where the bulk of the heat transfer takes place, has been carried out for a simplified model. In this model, the air is assumed to be incompressible, and bouncing of droplets from the surface of the cylinder has been ignored. It has been found that this analysis gives some valuable insight into the relative importance of the various mechanisms which contribute to the over-all heat transfer. Both the experimental and the analytical results show that, in general, significant increases in heat transfer are obtained over that which would be obtained from a single-component gaseous cooling fluid. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1966
- Accession Number
- AD0642281
Entities
People
- J. E. Smith