寒冷地区装配式日光温室保温性能仿真  

Simulation of Thermal Insulation Performance of Prefabricated Solar Greenhouse in Cold Areas

作　　者：吴菲菲[1] 吕彩霞 WU Fei-fei;LV Cai-xia(Inner Mongolia Agricultural University,Huhhot Inner Mongolia 010018,China)

机构地区：[1]内蒙古农业大学,内蒙古呼和浩特010018

出　　处：《计算机仿真》2024年第8期526-529,566,共5页Computer Simulation

基　　金：内蒙古自治区高等学校科学技术研究项目(NJZY21534)。

摘　　要：日光温室的保温性能直接影响农作物产量,为了使其提高产量,需要对保温性能进行分析。但由于需要考虑诸多因素,导致分析过程繁复。因此,提出寒冷地区装配式日光温室保温性能仿真研究,利用数学模型化繁为简。计算温室前段与后段曲率,并构建温度场数学模型,使用二次曲线逼近的方式解析该模型;建立有限元分析模型,根据有限元求解思路计算热传递问题,分别确立稳态和瞬态下的热传递微分方程,设置边界条件;结合热传递情况,使用流体动力学算法,计算流体质量、动量和能量守恒公式,进而获得温室不同节点温度。实验结果表明,目标温室的保温性能良好,模拟出的温度与实际温度相符,能够为温室参数改进提供参考依据。The insulation performance of a solar greenhouse directly affects crop yield.In order to increase its yield,it is necessary to analyze the insulation performance.However,due to the need to consider many factors,the analysis process is complex.Therefore,this paper designed a simulation for the insulation performance of fabricated solar greenhouses in cold areas.Firstly,we utilized some mathematical models to simplify complex analyses.Then,we calculated the curvature of the front and back sections of the greenhouse and constructed a mathematical model of temperature field.Next,we resolved this model by using quadratic curve approximation.Furthermore,we build a finite element analysis model.Based on the finite element solution approach,we calculated the heat transfer and established the differential equations of steady and transient heat transfer.Meanwhile,we set different boundary conditions.In combination with heat transfer situation,we used the fluid dynamics algorithm to calculate fluid mass,momentum,and energy conservation formulas,thus obtaining temperatures at different nodes.Experimental results prove that the insulation performance of the target greenhouse is good,and the simulated temperature is consistent with the actual value,so this method can provide a reference for improving the parameters of the greenhouse.

关 键 词：寒冷地区 装配式日光温室 保温性能 有限元分析 温度场数学模型 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]