| 高效空气过滤器内部气相流场的数值研究 |
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| 引用本文： | 陈乐端,韩云龙,钱付平.高效空气过滤器内部气相流场的数值研究[J].过滤与分离,2009,19(1):4-6. |
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| 作者姓名： | 陈乐端 韩云龙 钱付平 |
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| 作者单位： | 安徽工业大学,建筑工程学院,安徽,马鞍山,243002 |
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| 摘 要： | 利用计算流体力学（Computational fluid dynamics．CFD）对三维交错排列的高效空气过滤器内部气相流场的特性进行数值研究，计算了不同迎面风速下过滤器的阻力和纤维的阻力系数，并将数值预测值与文献中经验公式预测值进行比较。结果表明：从过滤器入口的第一排纤维到最后一排纤维之间的流场呈周期性变化；过滤器阻力随着迎面风速的增加呈线性增加，与其它经验模型比较，过滤器阻力的数值预测值与Davies的实验关联式吻合较好；过滤器内部纤维的阻力系数随雷诺数的增加而减小，阻力系数的数值预测值和其他的经验公式预测值和理论计算值吻合较好。
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| 关 键 词： | 高效空气过滤器 数值模拟 气相流场 阻力 阻力系数 |
Numerical Study of the Gas Flow Field in a High Efficiency Particulate Air Filter |
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| CHEN Le-duan,HAN Yun-long,QIAN Fu-ping.Numerical Study of the Gas Flow Field in a High Efficiency Particulate Air Filter[J].China Filtration & Separation,2009,19(1):4-6. |
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| Authors: | CHEN Le-duan HAN Yun-long QIAN Fu-ping |
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| Affiliation: | CHEN Le-duan, HAN Yun-long, QIAN Fu.-ping (School of Civil Engineering and Architecture, Anhui University of Technology, Ma＇anshan 243002, China) |
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| Abstract: | The gas flow field characteristics of the high efficiency particulate air filter that was made of a staggered array fibres was studied using computational fluid dynamics(CFD) technology.The pressure drops and dimensionless drag coefficients with different velocities were calculated,and the predicted results were compared with the values of the empirical models in the literature.The result show that periodic flows occured between the first and last fiber arrays along the direction of the flow.Pressure drop i... |
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| Keywords: | high efficiency particulate air filter numerical simulation gas flow field drag drag coefficient |
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