机械通风温室夏季内部温度场及动态特性CFD模拟  

A Simulation on Temperature Field and Dynamic Characters of a Forced Ventilated Greenhouse in Summer

作　　者：黄全丰[1,2] 赵云[1] 

机构地区：[1]嘉兴学院机电工程学院,浙江嘉兴314001 [2]江西理工大学机电学院,江西赣州341000

出　　处：《农机化研究》2013年第1期30-33,共4页Journal of Agricultural Mechanization Research

基　　金：浙江省科技计划项目(2010C34004)

摘　　要：首先应用计算流体力学软件FLUENT对机械通风温室内部温度场进行了建模,通过稳态计算得到了温室内部温度场的三维分布云图,分析了一种情况下温度场的分布特征。在此基础上应用FLUENT的非稳态计算能力,对连栋温室在机械通风阶跃变化过程中内部空间温度场非稳态过程进行模拟计算,得到了温室内部温度场特征点的响应曲线,依次分析了在不同太阳辐射强度、不同通风速率和不同辐射方向时的动态响应特性。A three-dimension temperature distribution image of a forced ventilated greenhouse is given by calculating steady-state temperature fields based on a computational fluid dynamics modeling of a multi-span greenhouse from CFD software FLUENT.From this basic work,the non-steady-state process simulation of temperature field of internal space are calculated and transient temperature curves are gotten in three specific position as well as under four different circumstances as different solar radiation,different ventilation,different radiation direction.The dynamic temperature responses of a such-case greenhouse to step change of ventilation are analyzed.

关 键 词：温室温度 机械通风 温度场 动态特征 

分 类 号：S625.51[农业科学—园艺学]