| 日光温室土壤温度分布边际效应的数值模拟 |
| |
| 引用本文： | 佟国红,王铁良,白义奎,刘文合,于威,赵荣飞.日光温室土壤温度分布边际效应的数值模拟[J].北方园艺,2010(15):65-68. |
| |
| 作者姓名： | 佟国红 王铁良 白义奎 刘文合 于威 赵荣飞 |
| |
| 作者单位： | 沈阳农业大学,水利学院,辽宁,沈阳,110866;沈阳农业大学,水利学院,辽宁,沈阳,110866;沈阳农业大学,水利学院,辽宁,沈阳,110866;沈阳农业大学,水利学院,辽宁,沈阳,110866;沈阳农业大学,水利学院,辽宁,沈阳,110866;沈阳农业大学,水利学院,辽宁,沈阳,110866 |
| |
| 基金项目： | "十一五"国家科技支撑计划重点资助项目，教育部留学回国人员科研启动基金资助项目，辽宁省博士科研启动基金资助项目 |
| |
| 摘 要： | 采用CFD技术,以2004年2月20日(晴天)及2月21日(阴天)土壤温度模拟值与试验值对比进行研究,揭示土壤温度沿跨度分布的边际效应特点。结果表明:温室0.2 m深土壤温度呈现中部高、两端低,且中部以北温降较大的特点,0.2 m深土壤温度跨中与北墙1 m处温差是跨中与前底脚1 m处温差的近2倍;模拟显示0.2 m深土壤温度距北墙0.5 m开始急剧下降,出现明显的边际界点,界点与中部温度相比下降近3.0℃;与0.2 m深跨中土壤温度相比降幅2℃的点在晴天13:00距北墙2.5 m、23:00距北墙1.7 m,阴天13:00距北墙1.4 m、23:00距北墙1.1 m,表明阴天土壤温度分布均匀性好于晴天。采用数值模拟的方法有助于了解土壤温度在温室边际区域的详细分布,以指导温室建筑在边界处的构造设计。
|
| 关 键 词： | 日光温室 土壤温度 边际效应 数值模拟 |
Numerical Modeling of Marginal Effect on Soil Temperature Distribution in a Chinese Solar Greenhouse |
| |
| TONG Guo-hong,WANG Tie-liang,BAI Yi-kui,LIU Wen-he,YU Wei,ZHAO Rong-fei.Numerical Modeling of Marginal Effect on Soil Temperature Distribution in a Chinese Solar Greenhouse[J].Northern Horticulture,2010(15):65-68. |
| |
| Authors: | TONG Guo-hong WANG Tie-liang BAI Yi-kui LIU Wen-he YU Wei ZHAO Rong-fei |
| |
| Institution: | TONG Guo-hong,WANG Tie-liang,BAI Yi-kui,LIU Wen-he,YU Wei,ZHAO Rong-fei(College of Water Conservancy,Shenyang Agricultural University,Shenyang,Liaoning 110866) |
| |
| Abstract: | Soil temperatures inside a Chinese solar greenhouse was predicted using Computational Fluid Dynamics(CFD)to indicate the soil temperature distribution marginal effect along span.The soil temperatures on February.20(sunny day)and February.21(cloudy day)were predicted and compared with measured values.The results showed that the soil temperatures on the surface and at 0.2 m deep were high in the middle and low at two sides with the temperature difference between the middle and 1 m away from the north side two... |
| |
| Keywords: | solar greenhouse soil temperature marginal effect numerical simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
