This paper deals with the heat transfer in convergent-divergent nozzles.
A differential equation is derived in order to determine the heat transfer rate as a function of nozzle geometry in the subsonic part, and one dimensional nozzle flow equations including heat transfer and frictional drag are used for the analysis in the supersonic part of nozzles. The validity of these processes rests with some favourable comparisons with measurements.
The results are considered to be useful for the preliminary estimate of high enthalpy supersonic nozzle flow under the influence of heat transfer and frictional drag and the for the design of nozzles of minimum heat transfer.
The need for fundamental knowledge of boundary layer in such internal flow field is increased in order to develop this kind of problem.
抄録全体を表示