Effect of Ventilation Ways on Airflow Profile Patterns inside Greenhouse

摘要：

3-D stead numerical simulations were done based on the CFD technique in the bi-span Venlo glasshouse. The airflow patterns were studied for the natural ventilation and the forced ventilation by means of the Realized κ ε model and DO radiation model. The results showed the average relative error between the simulated and the measured values was 11% and 5.6% for two ventilation ways,respectively. At crop level, the air speed was about 0.2～0.25m/s for the natural ventilation and 0.6m/s for the forced ventilation. The air current and the dead zone were generated during the natural ventilation. The air moved with a uniform speed of 0.6m/s at crop level when the forced ventilation was at work. The ventilation ways had an effect on the airflow distributions interior greenhouse.

关键词： Greenhouse Ventilation CFD Simulation

作者: CHENG Xiuhua MAO Hanping

作者单位: Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education & Jiangsu Prov Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education & Jiangsu Prov

会议类型: 国际会议

会议名称: 2008 International Conference on IAEA(2008农业信息化、自动化与电气化国际会议)

会议地点: 镇江

会议语种:英文

页码: 776-781

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）