Convergence of Fine Particles under Standing-Wave Condition
Convergence of Fine Particles under Standing-Wave Condition
复制标题
DOI：
10.1109/icbbe.2010.5516619
复制
发表时间：
2010-06
期刊：
影响因子：
--
通讯作者：
F. Fan;Houtao Chen;Zhulin Yuan;Xianglin Shen
中科院分区：
文献类型：
--
作者：
F. Fan;Houtao Chen;Zhulin Yuan;Xianglin Shen
对细颗粒物（PM2.5）在驻波声场中的运动进行了数值模拟和实验研究。通过数值模拟，发现驻波声场可以引起PM2.5的显著收敛，在一个波长范围内产生两个粒子数密度峰值。实验还观察到了细颗粒在声致运动下的收敛行为。结果表明，由于声激励引起的空气振荡是PM2.5在水平驻波声场中运动和会聚的主要原因。
Both numerical and experimental investigations on motion of fine particles (PM2.5) in a standing-wave sound field are carried out. Through numerical simulations, it is found that a standing-wave sound field can cause remarkable convergence of PM2.5, producing two particle number density peeks in range of a wavelength. The convergence behavior of fine particles undergoing acoustically induced movements was also experimentally observed. The results indicate that air oscillating due to acoustic excitation is the main reason for movement and convergence of the PM2.5 in a horizontal standing-wave sound field.