哈尔滨工程大学学报Issue(2)：222-229,8.DOI:10.11990/jheu.201603057
湿压缩过程中水滴的运动分析
Motion analysis of water droplets during wet compression
摘要
Abstract
Water injection exerts an obvious influence on the performance of compressors during wet compression.Wet compression was numerically simulated using a single-stage axial compressor to study the motion of water droplets in a compressor.Results showed that water droplets in a compressor are mainly controlled by drag forces and that the Reynolds and Weber numbers of these droplets are low.Water droplets are most likely to break up in a model of vibrational breakup,and the break-up phenomenon mainly occurs around the leading edge of rotor blades.Some water droplets impact the blade during wet compression.Impingement of water droplets on the blade not only influences the motion and breakup of water droplets but also increases the load on the blade.The mass and heat transfer effects generated by smaller water droplets are better than those produced by larger ones,and the intensity of turbulent fluctuation is weaker,leading to lower viscosity loss.Considering the evaporation cooling,resistance loss,and impact effects produced by water droplets,small droplets and the proper amount of water injection should be chosen to minimize negative effects during wet compression.关键词
水滴运动/湿压缩/两相流/传热传质/压气机Key words
motion of water droplets/wet compression/two phase flow/heat and mass transfer/compressor分类
能源科技引用本文复制引用
柴柏青,徐国印,郑群,张海,贾兴运,田志涛..湿压缩过程中水滴的运动分析[J].哈尔滨工程大学学报,2017,(2):222-229,8.基金项目
航空科学基金项目(201410P6003). （201410P6003）
