一种对流传质传热模拟方法:考虑土豆片中三种不同流体速度  

A Convective Mass and Heat Transfer Simulation Method:Considering Three Different Fluid Velocities in Potato Slices

作　　者：王小勇 刘显茜[1] WANG Xiao-yong;LIU Xian-xi(Faculty of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]昆明理工大学机电工程学院,昆明650500

出　　处：《价值工程》2018年第8期176-180,共5页Value Engineering

基　　金：国家自然科学基金;基金名称:稳态-解耦测算多孔材料传热传质系数及变化机理研究(编号:51566006)

摘　　要：许多文献报道了土豆片干燥模拟方法。然而,其并没有清晰解释传热传质耦合机理。本文建立一个模型来描述土豆片中的温度演化和水分迁移。创新点是考虑到土豆片中存在三种不同流体速度以及认为材料物理变量之间相互影响。模拟证明计算结果与文献实验具有良好的拟合度。同时研究了不同的风温,风速以及空气相对湿度对干燥的影响。Many simulation methods of drying potato slices were reported.However,this did not explain the coupled mechanism of heat and mass transfer clearly.A model is built to describe the temperature evolution and moisture immigrates of potato slices.The innovation point is considering that the coefficients will alter over other physical variables and the existence of three different fluid velocity in the porous medium.Then,a good fitting between literature experiment and calculation result can be observed.And,the effects of parameters such as temperature,air velocity and air relative humidity towards drying rate are researched

关 键 词：耦合机制 流体速度 物理变量 

分 类 号：TK124[动力工程及工程热物理—工程热物理]