高速流中におけるサブクール沸騰現象の非定常挙動に関する研究

抄録

In this study, the unsteady behavior that occurred in subcooled boiling in high-speed flow was investigated and considered the effects of superheat and flow velocity on the unsteady behavior. When the heating rate was large, the nucleate boiling changed to a vapor mass in the low speed flow of U_∞ = 1 m/s, whereas unsteady behavior covering in the heating surface was observed at U_∞ = 2.7 m/s. In this case, a phenomenon was observed in which the vapor phase disappeared against the flow. The unsteady behavior tends to slow down the increase in heat flux, suggesting that this phenomenon affected the heat transfer characteristics.