In order to study the influence of flywheel speed on the particle size of the atomized droplets in the flywheel fogging system, a flywheel fogging test bench was established .The Sauter mean diameter (D32) of the atomized droplets under different flywheel speeds with the same wind speed was measured by using a LS-2000 split laser spray particle size analyzer .On the basis of experiments , the numerical simulation was carried out on the two-dimensional unsteady simplified flywheel atomization model by using FLUENT software , and the size and its distribution of the flywheel atomized droplets were obtained .The results showed that under certain wind speed , the Sauter mean diameter of the atomized droplets decreased with the increase of fly-wheel speed .When the flywheel speed was 1000 r/min, the Sauter mean diameter of the atomized droplets was the smallest . When the flywheel speed exceeded 1000 r/min, the Sauter mean diameter of the atomized droplets increased again .The simula-tion results of the atomized droplets under different flywheel speeds had a good correlation with the experimental values .%为了研究飞轮造雾系统中飞轮转速对雾化液滴粒径的影响,搭建了飞轮造雾试验台.利用LS-2000分体式激光喷雾粒度分析仪测量了相同风速不同飞轮转速下雾化液滴的索特平均直径(D32),在试验的基础上,采用FLUENT软件对二维非稳态简化飞轮雾化模型进行数值模拟,得出了飞轮雾化液滴粒径的大小及分布.结果表明:在一定风速下,随着飞轮转速的提高,雾化液滴的索特平均直径减小;当飞轮转速为1000 r/min时,雾化液滴的索特平均直径最小;超过1000 r/min时,雾化液滴的索特平均直径又会增大;不同飞轮转速下雾化液滴的模拟结果与试验值相关性较好.
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