Accession Number : AD0413452

Title :   HEAT TRANSFER IN OSCILLATING FLOW,

Corporate Author : PRINCETON UNIV N J

Personal Author(s) : Saunders,R.C. ; Harrje,D.T.

Report Date : 31 MAY 1963

Pagination or Media Count : 1

Abstract : Velocity oscillations (associated with pressure oscillations) when imposed upon a compressible fluid in a duct produce increases in the heat transfer between the fluid and the duct. Under certain conditions these increases can be substantial. A limited experimental investiga tion of the nature of these increases is treated. The design principles and capabilities of the elaborate experimental apparatus required to accurately survey the hansfer in a duct at resonant conditions are described. Resonant oscillations in a duct were used to achieve sufficient oscillating amplitudes. The flow characteristics and parametric variations were investigated on at least one-half of a standing wave for all frequencies used. The heat transfer was found to be affected by three-dimensional effects as well as the longitudinal variations, and when such conditions existed, the heat transfer could not be predicted by any simple relationship. (Author)

Descriptors :   (*COMPRESSIBLE FLOW, HEAT), (*HEAT TRANSFER, COMPRESSIBLE FLOW), VELOCITY, OSCILLATION, FLUID MECHANICS, DUCTS.

Distribution Statement : APPROVED FOR PUBLIC RELEASE