用光散射效应分析激波管内膨胀率对水蒸气成核与凝结的影响  

Analysing the Effect of Expansion Rate Affected on Nucleation and Condensation of Water Vapor in a shock Tube Using the Effect of Light Scattering

作　　者：史琳[1] 胡柱国[1] 蔡颐年[1] 

机构地区：[1]西安交通大学

出　　处：《空气动力学学报》1994年第4期475-481,共7页Acta Aerodynamica Sinica

摘　　要：用多重光散射法对水蒸气在激波管中的自发成核凝结过程进行了实验研究，分析了膨胀率对成核率和凝结过程的影响。根据理论计算和实测数据结果，所得结论是：膨胀率增大，会造成过饱和度、成核率、凝结质量份额和液滴生长率相应地增大。The process of spontaneous nucleation of water vapor hasbeen researched experimently in a shock tube using a method of muItiplelight scattering. Analyze the effect of the expansion rate affected on thenucleation and condensing process.The conclusions based on the theoreticalcalcuation and data results are as follows:increasing the expansion ratewould have derived to increase correspondingly the supersaturation ratio, nucleation rate, condensate mass fraction and droplet growth rate.

关 键 词：冷凝 多重光散射 激波管 风洞试验 膨胀率 

分 类 号：V211.751[航空宇航科学与技术—航空宇航推进理论与工程]