The Research of the Influence of Ripple Cross Angles and Turbulence Models on Wet Curtain Resistance Property

摘要：

　　In order to study the influence of ripple cross angles on the resistance of wet curtain, wet curtains with different ripple cross angles (45°/45℃, 45℃/16℃) were tested using agricultural ventilation equipment performance testing bench, and the static pressure drop under different wind speed (1~3m/s) was obtained.Four turbulence calculation models (κ-ε, κ-ω, RNG κ-ε,Shear Stress Transport) were used to calculate numerical simulation of these two kinds of wet curtains.The numerical simulation results and experiment results were compared.The average error were 41%, 27.1%, 27.6%, 44.0% respectively.Therefore, κ-ω turbulence model is the best one and was used to analysed the static pressure drop performances of wet curtains with ripple cross angles of 45°/35℃ and 45℃/25℃.The Results showed that the resistance increased with wind speed and ripple cross angles.Furthermore, the large ripple cross angle had higher resistance growth rate with the wind speed increasing.

关键词： ripple cross angle resistance turbulence model

作者: Tao Ding Lumeng Fang Baoxi Sun Zhengxiang Shi Baoming Li Zonglun Wang

作者单位: College of Water Resources and Civil Engineering, China Agricultural University College of Water Resources and Civil Engineering, China Agricultural University;Beijing Engineering College of Water Resources and Civil Engineering, China Agricultural University;Key Laboratory of Ag

会议类型: 国际会议

会议名称: The First Asian Conference on Precision Livestock Farming (2016 PLF-Asia)(首届亚洲智慧畜牧业国际研讨会)

会议地点: 北京

会议语种:英文

页码: 53-59

在线出版日期: 2016-09-09（万方平台首次上网日期，不代表论文的发表时间）