预混火焰前锋的观测及提取  

OBSERVATION AND TRACK OF PREMIXED FLAME FRONTS

作　　者：穆克进[1] 王岳[1] 雷宇[1] 张哲巅[1] 聂超群[1] 肖云汉[1] 

机构地区：[1]中国科学院工程热物理研究所,北京100080

出　　处：《工程热物理学报》2007年第5期891-893,共3页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.50276061)

摘　　要：介绍了用激光层析探测燃烧场的原理及其装置和图像处理工具的开发过程。利用预混V形火焰进行了激光层析探测火焰前锋的实验,结果显示该方法能够在入射光平面内清晰地分辨火焰皱褶在任一瞬间的几何形状。利用主动轮廓算法(ACM)从数字化图像中准确提取了火焰前锋的轮廓线形,为对火焰皱褶及其传播特性的量化分析打下了基础。The present paper describes the principle of detecting combustion field by using laser tomography. The exploitation of laser tomography apparatus and the tool of image processing are also introduced. The experiment of detecting flame fronts by laser tomography were carried out by employing a V-shaped premixed flame. The results show that the instantaneous geometry shape of flame wrinkles within the light sheet can be clearly differentiated. The contours of the flame fronts are precisely tracked through active contour method （ACM） from the digitized images of laser tomography. This provides the basis of the quantitative analysis of flame wrinkles and their propagation.

关 键 词：激光层析 预混火焰 皱褶 主动轮廓算法 

分 类 号：TK16[动力工程及工程热物理—热能工程]