CFD simulations of airflow distributions inside glasshouse with tomato crops

被引：2

作者：

Cheng X. ^{[1
,2
]}

Mao H. ^{[1
]}

Wu D. ^{[1
,3
]}

Ni J. ^{[1
]}

Li B. ^{[1
]}

机构：

[1] Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education and Jiangsu Province, Jiangsu University, Zhenjiang

[2] College of Animal Science and Technology, Yangzhou University, Yangzhou

[3] Engineering College, Anhui Agricultural University, Hefei

来源：

Jiangsu Daxue Xuebao (Ziran Kexue Ban)/Journal of Jiangsu University (Natural Science Edition) | 2010年 / 31卷 / 05期

关键词：

Airflow; CFD; Glasshouse; Simulation; Ventilation;

D O I：

10.3969/j.issn.1671-7775.2010.05.004

中图分类号：

学科分类号：

摘要：

The 3D numerical simulations were done based on the CFD technique for the natural ventilated Venlo glasshouse with tomato crops. The porous medium model was used for tomato crops, and the humid air transfer was simulated based on the species transfer and the DO radiation model. The measured values were used to validate the CFD model. The results show that the same trend is found for the airflow velocity for both simulated and the measured values in the middle of glasshouse. The average relative error is 15.0% and 10.9% for the total airflow velocity and the y component, respectively. The CFD model is validated. The airflow is turbulent and the air vortexes are observed near the south volume. However, it is balanced near the north and the crop level. Crop canopy drag affects the airflow patterns. The wind effect plays a role near the side-vent, but the buoyant effect is obvious in the volume above the crop level and the side-vent.

引用

页码：510 / 514

页数：4

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