| 温室周围气流运动的有限元法模拟分析 |
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| 引用本文： | 王 健,丁为民,杨红兵.温室周围气流运动的有限元法模拟分析[J].西北农林科技大学学报(社会科学版),2006,34(3):161-164. |
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| 作者姓名： | 王 健 丁为民 杨红兵 |
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| 作者单位： | 南京农业大学,工学院,江苏,南京,210032 |
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| 摘 要： | 以有限元法分析流体力学问题为基础,运用ANSYS 9．0软件模拟了温室周围空气流的运动情况, 并分析了利用风压进行通风换气时比较实用的开窗方式。模拟结果显示:采用天窗与侧窗组合通风的效果优于仅利用侧窗通风。最后将二维模拟温室周围气流运动的方法进一步推广到三维模拟中,模拟了温室周围气流的运动情况。结果表明,下风向风速在距离温室0-3 m处为3．260 4-2．905 5 m／s,在3-12 m处为2．888 8-2．845 7 m／s;上风向风速在距离温室0-4．2 m处为3．120 5-2．698 9 m／s,在4．2-12 m处为2．698 9-2．946 m／s。
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| 关 键 词： | 温室气流 气流运动 开窗方式 下风向风速 上风向风速 有限元分析 |
| 文章编号： | 1671-9387(2006)03-0161-04 |
| 收稿时间： | 2005-07-13 |
| 修稿时间： | 2005年7月13日 |
Simulating and analysis of the movement of airflow around a greenhouse with FEA |
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| WANG Jian,DING Wei-min,YANG Hong-bing.Simulating and analysis of the movement of airflow around a greenhouse with FEA[J].Journal of Northwest Sci-Tech Univ of Agr and,2006,34(3):161-164. |
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| Authors: | WANG Jian DING Wei-min YANG Hong-bing |
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| Institution: | College of Engineering, Nanjing Agricultural University, Nanjing , Jiangsu 210032, China |
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| Abstract: | This paper, based on the theory of FEA in analyzing hydromechanics, simulated the movement of airflow around the greenhouse and analyzed the way of ventilation using ANSYS 9. 0 software. The result of simulation shows aeration effect of using roof ventilators and side ventilators was better than using only side ventilators. The movement of airflow around a greenhouse was simulated by using ANSYS 9. 0 software with 3D. The result indicates that leeward wind reached 3. 260 4-2. 905 5 and 2. 888 8 - 2.845 7 meters per second at the distance of 0-3 and 3-12 meters respectively; Windward wind reached 3.120 5-2. 698 9 and 2. 698 9-2. 946 meters per second at the distance of 0- 4. 2 and 4. 2-12 meters. |
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| Keywords: | greenhouse airflow movement of airflow ventilator mode windward wind speed leeward wind speed FEA |
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