叶轮式颗粒流量计工作过程的数值模拟  

Numerical Simulation of a Turbine Meter for Measuring Bulk Flow-rate

作　　者：肖国先[1] 徐德龙[1] 胡道和[2] 时钧[2] Yu A B 

机构地区：[1]西安建筑科技大学,西安710055 [2]南京工业大学,南京210009 [3]Univevsity of New South Wales

出　　处：《武汉理工大学学报》2003年第8期18-21,共4页Journal of Wuhan University of Technology

基　　金：国家"九五"重点科技攻关项目 ( 97- 5 5 9- 0 4)

摘　　要：用颗粒离散法数值模拟循环流化床中测定物料流率的叶轮式流量计工作过程。数值模拟结果表明颗粒质量流率与叶轮转速基本呈线性关系 ,这与实验所得到的结果相吻合。The turbine meters used for metering solids re circulating flow rate of Circulating Fluidized Bed are numerically simulated by the Discrete Element Method. The simulation results indicate that the working process of the turbine meter consists of two stages: initial acceleration and steady rotation. The final rotation rate of the turbine at the end of the acceleration stage depends on the velocity of flowing particles. The relationship of solids mass flow rate to the rotation rate of the turbine is linear, and the relationship was well documented by experiment results. The influence of blade number and blade angle on the relationship is also examined.

关 键 词：数值模拟 颗粒流动 叶轮 流量计 

分 类 号：TB937[一般工业技术—计量学]