高速気流中での固体粒混入液体の微粒化 : 第1報, 貫通距離, 広がり幅および分裂位置

抄録

The metalized slurry fuels are expected to enhance the combustion efficiency and the specific thrust of ramjet and scramjet engines. On the other hand, the disintegration mechanism of slurry fuel seems to differ from that of single-phase liquid such as water. It is expected that slurry fuel breaks up less readily than does single-phase liquid due to its high viscosity. This study aims to clarify the disintegration mechanism and spray characteristics of slurry fuels in high-speed air flow. In this report, the empirical equations of penetration and jet width were deduced. According to the empirical equations, the penetration and jet width of the aluminum-water slurry are larger than those of water under the same conditions. Furthermore, break-up locations of the aluminum-water slurry jet and water jet were measured. Consequently, by the above results, it was clarified the difficulty of disintegration for slurry jet attributes to the stability of the slurry jet due to its high viscosity.