锅炉一次风通过节流孔板时的数值模拟  

Numerical Simulation of a Boiler Primary Air Flow through a Throttle Orifice plate

作　　者：潘卫国[1] 李扬[1] 郑莆燕[1] 魏敦崧[2] 池作和[3] 岑可法[3] 

机构地区：[1]上海电力学院,上海200090 [2]同济大学 [3]浙江大学

出　　处：《热能动力工程》2000年第2期162-164,共3页Journal of Engineering for Thermal Energy and Power

基　　金：上海市青年科技"启明星"计划和高等学校科学技术发展基金资助项目! ( 98QF14 0 40 )

摘　　要：本文对锅炉燃烧系统水平一次风管道内装了可调节流孔板后的空气 -煤粉多相流动情况进行了数值模拟 ,通过数值模拟发现 :采用k ε双方程模型描述气相湍流模型 ,应用SIMPLE算法计算气相速度场 ,然后采用FSRT模型 ,La grange法计算颗粒场特性 。A numerical simulation was conducted of the air and pulverized coal multi phase flow pattern after an adjustable throttle orifice plate was installed in the pulverized coal horizontal feed pipe of a boiler combustion system. It has been found through the above mentioned simulation that an effective numerical simulation method consists in the following: a gas phase turbulent flow model is first described by the use of a K ε dual equation model and with the help of SIMPLE algorithm the gas phase speed field can be calculated. Then, a FSRT model and Lagrange method are employed to calculate the particle field characteristics.

关 键 词：气固多相流动 数值模拟 锅炉 节流孔板 

分 类 号：TK223.2[动力工程及工程热物理—动力机械及工程] O242.1[理学—计算数学]