近期多相流过程层析成像技术的发展  

Recent Developments in Process Tomography for Multi-phase Flows

作　　者：张修刚[1] 王栋[1] 林宗虎[1] 

机构地区：[1]西安交通大学能源与动力工程学院,陕西西安710049

出　　处：《热能动力工程》2004年第3期221-226,共6页Journal of Engineering for Thermal Energy and Power

基　　金：国家自然科学基金重大项目 (5 9995 460 ) ;教育部博士点基金资助项目 (2 0 0 0 69811)

摘　　要：多相流过程层析成像技术对于深入揭示多相流动的基本规律 ,推动多相流理论的发展和工程应用具有重要的意义。文中介绍了近年来X射线、γ射线、超声波、电阻、电容及网状电极等几类过程层析成像技术在多相流参数检测中的应用和发展 ,分析了图像重建、传感器的设计及选择和实时性等关键问题 ,最后对其应用前景和发展趋势做了展望。Process tomography for multi-phase flows plays a major role in the exhaustive exposition of multi-phase flow basic laws, promoting the development of multi-phase flow theories and their engineering applications. The authors give a brief account of the use and development of several types of tomographic techniques as represented by X and γ rays, ultrasonic waves, electric resistance, capacitance and mesh electrodes in the detection and measurement of multi-phase flow parameters. An analysis is given of a variety of key issues, such as image reconstruction, the design and selection of sensors, real-time character, etc. In conclusion, application prospects and development trends of the process tomography are forecast.

关 键 词：过程层析成像 两相流/多相流 图像重建 在线测量 

分 类 号：O359[理学—流体力学]