湍流旋流燃烧瞬时速度PDF的实验测量  

MEASUREMENT OF PDF FOR THE INSTANTANEOUS GAS VELOCITY IN SWIRLING TURBULENT COMBUSTION

作　　者：张健[1] 普勇[1] 周力行[1] 

机构地区：[1]清华大学工程力学系,北京100084

出　　处：《工程热物理学报》2004年第4期707-710,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.59806006);清华大学实验室开放基金资助项目

摘　　要：本文应用三维激光粒子动态分析仪(PDA)对分级进风旋流燃烧室内的湍流燃烧过程进行了实验测量。通过瞬时速度场的测量结果,获得了燃烧室内各测点上气体轴向与切向瞬时速度的概率密度函数(PDF),揭示了热态速度场的湍流脉动特性。The Three-Dimension-Laser Particle Dynamic Analyzer (PDA) was utilized to conduct experimental investigation of the turbulent combustion in a swirl combustor with staged air injection. The probability density functions (PDF) for the gas axial and tangential velocities at each measuring location are obtained from the measured data of the instantaneous gas velocity. The results delineate the turbulent fluctuating properties of the reacting flow field.

关 键 词：旋流燃烧室 湍流燃烧 概率密度函数 PDA测量 

分 类 号：TK16[动力工程及工程热物理—热能工程]