旋流燃烧室内湍流流动的PIV实验研究  

Experimental study on the turbulent flow in a swirl combustion chamber by using particle image velocimetry

作　　者：程勇[1] 汪军[1] 

机构地区：[1]上海理工大学动力工程学院,上海200093

出　　处：《上海理工大学学报》2004年第5期454-456,共3页Journal of University of Shanghai For Science and Technology

基　　金：上海市重点学科建设资助项目(能源岛关键技术及基地建设)

摘　　要：建立了微型燃气轮机旋流燃烧室实验台.采用二维粒子图像测速技术(PIV)测量了旋流燃烧室火焰筒内冷态速度场.旋流燃烧室主要由3个旋流器和1个侧壁开有测试视窗的圆筒段组成.在空气流量为0.114m3/s的工况下,得到了燃烧室火焰筒内气体时均切向速度分布及旋流燃烧室火焰筒中心截面和不同轴向横截面位置的速度矢量分布图.实验结果及其分析为旋流燃烧室的数值模拟计算和进一步的实验研究提供了基础.An experimental system for the micro-gas turbine swirl combustion chamber is established.The velocity field inside the combustor liner is measured with two-dimensional particle image velocimetry.The model combustion chamber consists mainly of three swirlers and a cylindrical shell with a side-window for PIV image capture.Velocity-vector diagrams and time-averaged swirl velocity profiles at the central longitudinal section and different cross sections of the combustion chamber at a total air-stream flow 0.114 m^3/s are obtained and analyzed,which is of importance to the numerical simulation and further experimental studies of the swirl combustion chamber.

关 键 词：微型燃气轮机 旋流燃烧室 火焰筒 粒子图像测速技术 速度场 

分 类 号：TK473.2[动力工程及工程热物理—动力机械及工程] O357.54[理学—流体力学]