干旱地区农业研究Issue(6)：273-278,6.
基于CFD－EDEM耦合的小区玉米帘式滚筒干燥箱数值模拟
The numerical simulation for corn curtain roller drying box based on CFD-EDEM coupling
摘要
Abstract
In order to solve the problem of simulating difficulty for the process of drying material by drier through existing technology ,based on the CFD-DEM gas-solid coupling mathematical model ,using the standard k -εturbu-lence unsteady Euler-Euler coupling algorithm ,has analyzed the heat transfer by the gas and solid and dynamic distribu-tion of the internal flow field in the drying process of the curtain roller drying box .Before simulation has carried out the pre-treatment for the gas-solid coupling model:Has set up the dryin box model by the 3D modeling software and carried out the grid division by using the Gambit software .Using the slice modeling technology has set up the corn simulation model and the initial condition ,boundary condition and coupling parameters for the two kinds of coupled models .The simulated results shown that:In the 1 .5 s simulating process ,the corn model be in different temperature field accorded with normal distribution .Among them ,the number of corn model was 735 be in 373 K ,the temperature has increased 7 .9 K about 75 corn models;the rmove of the curtain in the roller will have the disturbance accelerate function for heat air flow ,the air speed near the curtain plate was increased from 0 .50 m·s-1 up to 0 .63 m·s-1 .关键词
帘式滚筒干燥箱/玉米/数值模拟/CFD-EDEMKey words
curtain roller drying box/corn/numerical simulation/CFD-EDEM分类
农业科技引用本文复制引用
石林榕,吴建民,赵武云,孙伟,孙步功,张峰伟..基于CFD－EDEM耦合的小区玉米帘式滚筒干燥箱数值模拟[J].干旱地区农业研究,2014,(6):273-278,6.基金项目
“十二五”国家科技支撑项目农牧循环关键技术配套机具研发 （）
