淹没磨料射流的动理论分析  

Analysis of the Kinetic Theory of Submerged Abrasive Water Jets

作　　者：李晓红[1] 向文英[2] 卢义玉[1] 

机构地区：[1]重庆大学资源与环境科学学院,重庆400044 [2]重庆大学城市建设与环境工程学院,重庆400045

出　　处：《土木建筑与环境工程》2009年第1期19-22,共4页Journal of Civil,Architectural & Environment Engineering

基　　金：国家自然科学基金专项创新研究群体基金资助项目(50621403);国家自然科学基金资助项目(506040191)

摘　　要：淹没磨料射流有效地解决了水下切割硬度较大的物体,动理论方法能更好地分析淹没磨料射流流动的相关理论问题。借助于多相流的运动理论,深入分析了淹没磨料射流的输运特点,探讨了淹没磨料射流中各相的碰撞特征。建立了淹没磨料射流中固、液、气各相分别满足的连续性方程和动量方程。分析指出,只要知道各相的分布函数,则可得到液、固、气各相的运动规律。Abrasive water jets can incise objects with strong rigidity under water. The analytical means of kinetic theory is optimal for theoretical problems of submerged abrasive water jets. The flow characteristics in submerged abrasive water jets were analyzed based on kinetic theory for multiphase flows. The impact characteristics of every phase in submerged abrasive water jets was analyzed and continuity and momentum equations subsequently were developed for solid, gas and liquids in submerged abrasive water jets. It is shown that if the distributing function of every phase were given, the law of its movement could be ascertained.

关 键 词：淹没磨料射流 分布函数 动理论 动量方程 

分 类 号：TU443[建筑科学—岩土工程]