【摘要】 就温度对柴油喷雾射流表面扰动波增长率的影响进行了理论分析和实验研究。研究结果表明，在加热条件下，燃油的表面张力和粘性下降，引起韦伯数Ｗｅ的减少和雷诺数Ｒｅ的增大，结果导致喷雾射流扰动波的增长。环境介质温度愈高，喷雾射流表面温度就愈高，扰动波的增长率就越大，喷雾就越容易破碎和雾化，这与实验观察结果相符合。更多还原

【Abstract】 The theoretical study and experimental investigation of the effect of temperature on groWth of disturbancesof surface of diesel jet are made. It is demonstrated that when temperature is increased, the surface tension andviscosity are reduced. This leads to the reduction of Weber number (We ) and increase in Reynolds number (Re ),and finally resulting in an increase in the growth rate of disturbance wave. The higher is the temperature of gasmedium, the higher is the groW-th rate of the disturbance wave. This made the jet breakup and atondzation moreeasily. The results Of the theory agree finely with results of experiment.更多还原