CAJ | 학술논문

应用相多普勒粒度分析仪(PDPA)获得了双油路喷嘴详细的喷雾特性.将PDPA测得的空间点数据分别沿扫描径向和所在测量截面积分,得到液滴的线平均和面平均直径.PDPA的线积分数据比马尔文仪测得的线积分值要大;面积分平均直径与液膜波不稳定理论计算的初始平均直径相符合.结果表明,对描写喷雾特性和确定喷雾质量,PDPA是可靠的测量装置.
응용상다보륵립도분석의(PDPA)획득료쌍유로분취상세적분무특성.장PDPA측득적공간점수거분별연소묘경향화소재측량절면적분,득도액적적선평균화면평균직경.PDPA적선적분수거비마이문의측득적선적분치요대;면적분평균직경여액막파불은정이론계산적초시평균직경상부합.결과표명,대묘사분무특성화학정분무질량,PDPA시가고적측량장치.
Detailed spray characteristics were obtained for a dual-orifice atomizer using a phase-Doppler particle analyzer(PDPA)in this study.The PDPA measured point data were integrated into the line-averaged drop sizes over radial traverses and the cross-section-averaged sizes over the whole measured sections.The integrated PDPA data are greater as compared with the line-of-sight measurements given by a Malvern instrument,but reasonably consistent with the predictions based on the wave instability concept.The results from the investigation show that the PDPA is an effective instrument for providing a reliable approach of describing spray characteristics and determining the spraying quality.