Turbulent Boundary Layer and Heat Transfer Measurements Along a Convergent-Divergent Nozzle

Abstract

Boundary layer and heat transfer measurements are presented along a cooled, conical nozzle with a convergent and a divergent half-angle of 10 deg. Semi-empirical analyses are considered in conjunction with the measurements. The heat transfer is found to be describable by using the integral form of the energy equation once the relationship between the Stanton number and energy thickness Reynolds number has been established from the measurements. The friction coefficient, however, is not described accurately along the entire nozzle by existing formulations considered.