| 不同形式大棚内部气流流态的比较 |
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| 引用本文： | 王伟光,秦立举,曹阳,吉庆丰,程吉林.不同形式大棚内部气流流态的比较[J].扬州大学学报(农业与生命科学版),2005,26(2):86-88. |
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| 作者姓名： | 王伟光 秦立举 曹阳 吉庆丰 程吉林 |
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| 作者单位： | 江苏省,宿迁市水务局,江苏,宿迁,223800;扬州大学,水利科学与工程学院,江苏,扬州,225009 |
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| 基金项目： | 国家自然科学基金资助项目(70471098) |
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| 摘 要： | 运用三维不可压缩流体的RNG k-ε紊流模型，分别对拱型、屋脊型和斜顶型大棚内部气流场进行精细的数值模拟。结果表明：3种大棚在进气口附近都存在着多个回流区．流动呈现高度的三维特性，流态较为复杂，而在远离进口的大部分区域，流动趋于均匀。大棚进口两侧的回流区范围较大，其具体范围因大棚形式的不同而有明显的变化，大棚形式对其内部气流流态有显著的影响。
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| 关 键 词： | 大棚 气流流态 数值模拟 |
| 文章编号： | 1671-4652(2005)02-0086-03 |
| 修稿时间： | 2004年9月28日 |
Computational analysis of airflow patterns in different type greenhouses |
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| WANG Wei-guang,QIN Li-ju,CAO Yang,JI Qing-feng,CHENG Ji-lin.Computational analysis of airflow patterns in different type greenhouses[J].Journal of Yangzhou University:Agricultural and Life Science Edition,2005,26(2):86-88. |
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| Authors: | WANG Wei-guang QIN Li-ju CAO Yang JI Qing-feng CHENG Ji-lin |
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| Institution: | WANG Wei-guang~1,QIN Li-ju~1,CAO Yang~2,JI Qing-feng~2,CHENG Ji-lin~2 |
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| Abstract: | Airflows in arciform greenhouse, fastigium greenhouse and slanting crest greenhouse were studied by 3D uncompressible turbulent numerical simulation. The results of simulation show that there were many vortexes in the round of the inlet of three kinds of greenhouse, the flow patterns have typical characteristic of 3D turbulent flow. The airflow velocity was nearly uniform in the mostly areas away from the inlet of greenhouse. The scopes of vortex were bigger in the two sides of the inlet of greenhouse and obviously varied with the types of the greenhouse. We can see that the types of different greenhouse have a very notable effect on the airflow in the greenhouse. |
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| Keywords: | greenhouse airflow pattern numerical simulation |
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