Direct simulation of inhalable particle motion and collision in a standing wave field
Direct simulation of inhalable particle motion and collision in a standing wave field
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驻波场中可吸入颗粒运动和碰撞的直接模拟
DOI：
10.1007/s12206-013-0420-4
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发表时间：
2013-07
影响因子：
1.6
通讯作者：
Fengxian FAN
中科院分区：
文献类型：
--
作者：
Fengxian FAN
对可吸入颗粒物（PM10）在声驻波作用下的运动进行了数值研究，并基于直接模拟蒙特卡罗（DSMC）方法研究了颗粒间碰撞率。结果表明，粒子迅速收敛，沿波传播方向在一个波长范围内产生两个粒子数浓度峰。考虑颗粒间碰撞，发现当颗粒尺寸和数量浓度恒定时，碰撞率随着频率的增加先增大后减小。因此，存在与最高碰撞率相对应的最佳频率。随着声音强度水平的增加，碰撞率单调增加。在相同声波的情况下，碰撞率随着粒子数浓度的增加而增加。粒径也是强烈影响碰撞率的重要因素。大的可吸入颗粒比小颗粒碰撞更强烈。
Motion of inhalable particles (PM10) under the effect of acoustic standing wave was numerically studied, and the inter-particle collision rate was investigated based on the direct simulation Monte Carlo (DSMC) method. The results show that the particles convergence rapidly, generating two particle number concentration peaks in a wavelength range along the wave propagation direction. Considering the inter-particle collision, it is found that when the particle size and number concentration keep constant, the collision rate first increases and then decreases with the increase of the frequency. Hence there is an optimal frequency that corresponds to the highest collision rate. As the sound intensity level increases, the collision rate increases monotonically. In cases with the same acoustic wave, the collision rate increases with the particle number concentration. The particle size is also an important factor that strongly affects the collision rate. The large inhalable particles collide more intensively than the small ones.
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影响因子：
4.7
作者：
D. Scott
通讯作者：
D. Scott
DOI：
10.1007/bf00158347
发表时间：
1976-04
期刊：
Water, Air, and Soil Pollution
影响因子：
--
作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
E. Condon;H. Odishaw;N. Balazs
DOI：
10.1109/icbbe.2010.5516619
发表时间：
2010-06
期刊：
2010 4th International Conference on Bioinformatics and Biomedical Engineering
影响因子：
--
作者：
F. Fan;Houtao Chen;Zhulin Yuan;Xianglin Shen
通讯作者：
F. Fan;Houtao Chen;Zhulin Yuan;Xianglin Shen