CAJ | 학술논문

根据复合激光诱导荧光技术(PLIEF)中Lambert-Beer定律的气相荧光强度与环境温度和压力的依赖关系以及能量守恒基本原理,结合使用复合激光诱导荧光技术拍摄得到的气相喷雾荧光图像,对气相柴油喷雾温度场进行定量标定时考虑了空气卷吸率和油滴蒸发率对喷雾温度场的影响;利用Matlab软件编写了标定喷雾温度场和浓度场的迭代计算程序.研究发现,利用本标定方法,可以通过复合激光诱导荧光技术同时完成气相柴油喷雾温度场和浓度场的定量标定,标定得到的气相喷雾温度场和浓度场强烈相关.
근거복합격광유도형광기술(PLIEF)중Lambert-Beer정률적기상형광강도여배경온도화압력적의뢰관계이급능량수항기본원리,결합사용복합격광유도형광기술박섭득도적기상분무형광도상,대기상시유분무온도장진행정량표정시고필료공기권흡솔화유적증발솔대분무온도장적영향;이용Matlab연건편사료표정분무온도장화농도장적질대계산정서.연구발현,이용본표정방법,가이통과복합격광유도형광기술동시완성기상시유분무온도장화농도장적정량표정,표정득도적기상분무온도장화농도장강렬상관.
A method was developed to quantitatively calibrate temperature distribution of vapor phase diesel spray using vapor phase fluorescence images taken by planar laser induced exciplex fluorescence(PLIEF)technique, according to energy conservation theory and dependence of vapor fluorescence intensity on ambient temperature and pressure in the Lambert-Beer law. In the calibration,the effects of ambient gas entrainment and fuel evaporation on spray temperature distribution were considered. The temperature distribution and concentration distribution of vapor phase diesel spray can be calibrated quantitatively and simultaneously in this way. It was found that the calibration results of temperature distribution and concentration distribution were strongly dependent on each other.