| 摘要: |
| 以有限元法分析流体力学问题为基础，运用ANSYS9．0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。 |
| 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 |
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| Simulating and analysis of the movement of airflow around a greenhouse with FEA |
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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. |
| Key words: greenhouse airflow movement of airflow ventilator mode windward wind speed leeward wind speed FEA |
