日光温室地基温度场数学模型及试验分析  

Experimental Analysis and Mathematical Model on Temperature Field of the Solar Greenhouse's Foundation

作　　者：白义奎[1,2] 李天来[1] 张文基[3] 

机构地区：[1]沈阳农业大学园艺学院,辽宁沈阳110886 [2]沈阳农业大学水利学院,辽宁沈阳110886 [3]沈阳农业大学信息与电气化学院,辽宁沈阳110866

出　　处：《北方园艺》2010年第13期49-53,共5页Northern Horticulture

基　　金："十一五"国家科技支撑计划重点资助项目(2008BADA6B05);中国博士后科学基金特别资助项目(200801395)

摘　　要：地面作为温室维护结构的一部分,其温度低会影响温室内作物的正常生长,尤其是前底脚部位这种现象更加明显,加强这部分的保温至关重要。在对辽沈I型日光温室前底脚温度分布试验分析的基础上,建立了温室地基稳态传热的数学模型,给出了解析解,并在此分析的基础上,利用ANSYS热分析软件对未设防寒沟和设置防寒沟2种情况进行了有限元分析。结果表明:在温室前底脚沿地基深度方向设置防寒沟具有良好的保温效果,可以提高温室内土壤温度,对提高基础附近的土壤温度尤为明显。Ground is a part of protection structure as solar greenhouse.Low temperature of soil to can influence normal growth of crop in the greenhouse,especially,the phenomenon in the fore foot was obvious.Therefore,it is important to strengthen heat preservation in design.On the basis of the experiment analysis about distributing of temperature in the fore foot of greenhouse type Liaoshen-I,constitute the mathematical model and had an analytical solution on steady-state heat transfer.And,soil temperature changes in solar greenhouse with cold-proof ditch and without cold-proof ditch in the fore foot were studied by finite element analysis through ANSYS software.The result showed the changes of soil temperature in different depths are prominent between inside and outside greenhouse with cold-proof ditch and without cold-proof ditch in the fore foot,and particularly obvious to improve soil temperature near the foundation.

关 键 词：日光温室 防寒沟 土壤温度 数学模型 

分 类 号：S625.3[农业科学—园艺学] TU261[建筑科学—建筑设计及理论]