位于射流喷射区的高浓度悬浮固粒扰动特性  

Research on Disturbance Properties of Dense Suspended Solid Particles Lying in the Injection Area of Jet

作　　者：周泽宣[1] TanSoonKeat 吴涛[2] 

机构地区：[1]南洋理工大学土木结构工程学院,新加坡639798 [2]浙江大学力学系,浙江杭州310027

出　　处：《科技通报》2001年第1期1-6,共6页Bulletin of Science and Technology

基　　金：中国教育部跨世纪优秀人才培养基金资助项目

摘　　要：利用双流体模型和扰动速度势理论 ,推得位于射流喷射区高浓度悬浮固粒的固气扰动复速度比值方程 .通过数值计算 ,得到了不同雷诺数及固粒属性下固气扰动复速度比值曲线 .分析该曲线 ,得到了关于流场雷诺数及固粒等效斯托克斯数对固粒跟随气流的扰动性能影响的结论 .这些结论是在计入气流粘性的条件下得到的 ,对于两相射流发展的认识和工程实际中实施对两相射流场的人工控制有重要意义 .The continuum phase coupling model is firstly used to derive the particle gas disturbance velocity ratio equation of the injection area of jet. Further, the disturbance velocity ratio curves for different properties of particles and flow field are given out by means of numerical simulation. Finally, the conclusions on disturbance property of particles are obtained, as are different from those in [9] obtained under the condition that the gas is inviscid. These conclusions are full of benefits in the realization of the development of two phase jet and executing artificial controls over two phase jet.

关 键 词：扰动特性 悬浮固粒 射流喷射区 两相射流场 雷诺数 固气扰动复速度比值 

分 类 号：O358[理学—流体力学]