| 日光温室二维及三维模拟对温度模拟结果的影响 |
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| 引用本文： | 佟国红,DavidM.Christopher,李天来,王铁良. 日光温室二维及三维模拟对温度模拟结果的影响[J]. 上海交通大学学报(农业科学版), 2008, 26(5): 420-423 |
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| 作者姓名： | 佟国红 DavidM.Christopher 李天来 王铁良 |
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| 作者单位： | 沈阳农业大学,水利学院,沈阳,110161;清华大学,热能工程系,北京,100084;沈阳农业大学,园艺学院,沈阳,110161 |
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| 基金项目： | 辽宁省博士科研项目 |
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| 摘 要： | 数值模拟在温室环境研究中应用日趋广泛，正确选择温室模拟模型对模拟结果的准确性非常重要。本研究以温室夜间各表面的温度为边界条件，采用CFD软件对12m跨度温室温度环境进行二维及三维空间的稳态模拟求解。结果表明温室中间横剖面温度在三维模拟及二维模拟中空间变化趋势相同且与测试结果相近：在温室前部及温室后上部模拟值与测试值的绝对误差在5％以内，在温室中部尤其是近土壤表面误差偏大。由温室中间及距山墙1m远两个横剖面的1m高温度线分布对比结果可见，温室长度大于其跨度两倍以上时，山墙对室内中部温度环境的影响不明显，模拟温室中部横剖面的温度用二维模型可行。
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| 关 键 词： | 日光温室 温度 模拟 CFD |
Influence of 2D and 3D Simulations on Temperature Predictions for Solar Greenhouse |
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| TONG Guo-hong Christopher D. M LI Tian-lai WANG Tie-liang. Influence of 2D and 3D Simulations on Temperature Predictions for Solar Greenhouse[J]. Journal of Shanghai Jiaotong University (Agricultural Science), 2008, 26(5): 420-423 |
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| Authors: | TONG Guo-hong Christopher D. M LI Tian-lai WANG Tie-liang |
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| Affiliation: | TONG Guo-hong~(1a) Christopher D. M~2 LI Tian-lai~(1b) WANG Tie-liang~(1a) (a.College of Water Conservancy,b.College of Horticulture,1.Shenyang Agricultural University,Shenyang 110161,China,2.Department of Thermal Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Numerical simulations of the temperature distributions in greenhouses are being more widely used to improve greenhouse de- signs so good numerical models are needed to give accurate results.Measured surface temperatures were used here for the boundary con- ditions to compare two and three dimensional steady-state CFD models to predict the fluid flow and temperatures inside a solar green- house with a 12 m span.The 2D and 3D predicted temperature profiles are very similar in the middle cross section,with bet... |
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| Keywords: | CFD |
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