温室大棚小气候的热力—动力学分析  

Thermal-dynamic Analysis of Greenhouse Microclimate

作　　者：刘春 刘思波[2] 张春辉 杨婷 李春林 

机构地区：[1]四川省内江市气象局,内江641000 [2]成都信息工程学院,成都610225 [3]四川省简阳市气象局,简阳641400

出　　处：《高原山地气象研究》2012年第4期70-75,共6页Plateau and Mountain Meteorology Research

摘　　要：根据大棚的结构特点,利用简化的大气热力—动力学方程组,以分析和数值的方法,对大棚内温度的时空分布进行了分析。并以该模型下的解析解作为加热下大棚温度的初始场,通过对热传导方程的边界值和初始场的讨论,利用分离变量法给出了方程的简单解析解,并给出其在不同时刻的数值模拟。通过对解析解的进一步分析,得出了该模型达到定常状态的时间。这一模型可以为以后以动力学方法进一步研究小气候提供参考。According to the structural characteristics of greenhouses, it analyzed the distribution of temperature on the spatial and temporal inside the greenhouse, with simplified atmospheric thermal - dynamic equations and numerical methods. The article got a simple solution of the equations and the numerical simulation in different times with the method of separation of var- iables, through the analysis of the boundary value and initial field of the thermal dynamic conduction equation, which the initial field is derived from the analytical solution of simplified atmospheric thermal - dynamic equations. The article got the time of the model reached the steady state by further analysis. This model can provide a reference for the further study on the microclimate with dynamics method.

关 键 词：大气热力-动力学方程组 热传导方程 初始场 边界值 定常 

分 类 号：S162[农业科学—农业气象学]