单 位：
南京农业大学;农业部南京农业机械化研究所
关键词：
圆盘风扇;CFD模拟;气流速度场;风送喷雾
摘 要：
为了研究圆盘风扇气流速度场分布特性及各因素的影响规律,建立了基于CFD模拟的沈力SF-4型风机气流速度场分布模型,并且设计实验验证了模拟结果。研究表明,进口气流速度变化对气流场分布特性无明显影响,但与风扇轴中心距离不同的截面上气流场速度分布规律有较大差异。双风扇同时送风时,对彼此气流场影响显著,且双风扇气流场气流速度分布均匀。模拟值与试验值对比表明,所建模型可以比较准确地模拟圆盘风扇气流场的分布。
译 名：
CFD Simulation and Experimental Verification of Air-velocity Distribution of Air-assisted Spraying of Disk Fan
作 者：
CHEN Fa-yuan1,WANG Xiao-chan1*,FU Xi-min2,LU Xiao-lan2(1.College of Engineering,Nanjing Agricultural University,Nanjing 210031,China; 2.Nanjing Institute of Agricultural Mechanization,Ministry of Agriculture,Nanjing 210014,China)
关键词：
Disk fan;CFD simulation;Air-velocity field;Air-assisted spraying
摘 要：
In order to investigate the characteristics of air-velocity distribution in the air-velocity field of air-assisted spraying of disk fan and effect pattern of various factors,a simulative model of air-velocity distribution on Shenli SF-4 type fan was developed based on CFD technology,and the relative errors of simulated results were confirmed through corresponding experiments under the same conditions.The simulative results showed that inlet velocity had little effect on the distribution pattern,but the distance to fan center had a great effect on it.Double fan flow field had significant influence on each other,and the air-velocity distribution of double fan was uniform.The results of comparison showed that the model could accurately predict the air-velocity distribution pattern of Shenli SF-4 type fan.
