含尘离心风机叶轮磨损研究的一种二维边界层求解方法  

A METHOD OF SOLVING 2-D TURBULENT BOUNDARY LAYER FOR STUDYING BLADE EROSION IN SUSPENDED SOLID PATICLES CENTRIFUGAL FANS

作　　者：密柯 章本照[1] 

机构地区：[1]浙江大学力学系,杭州310027

出　　处：《计算物理》1992年第4期473-476,共4页Chinese Journal of Computational Physics

摘　　要：推导了考虑旋转、曲率因素影响的二维湍流边界层微分方程,采用此方程求解了离心风机回转面的气流场。采用单相耦合模型,计算了不同粒径,初始位置及速度的粉尘离子在二维叶轮通道内的运动轨迹及粒子对叶片的磨损情况,计算结果表明:用边界层方法研究叶轮磨损较普通的位势流模型,能更好地符合实际情况。本文方法适用于工程计算。The present paper has derived 2 - D turbulent boundray layer differential equations including the effects rotation and curvature to solve gas-phase flow in Blade-to-Blade stream plane of centrifugal fans. Using single-phase-correlation model, we caculate the trails solid particles in blade channel and the balde erosion impacted by solid particles. The computation results show that this boundray layer method agree with practical situations better than the potential flow computation model. It is suitable for engineering caculation.

关 键 词：磨损 湍流边界层 鼓风机 离心式 

分 类 号：TH442[机械工程—机械制造及自动化]