Numerical study of low Reynolds inertial impactors with elliptical impaction plate
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- 作者：Mostafa Mahmoudi ; Mohammad Reza Tavakoli ; mrtavak@cc.iut.ac.ir ; Alireza Salehi
- 关键词：Impactor ; Elliptical impaction plate ; Aerosol ; Collection efficiency ; Submicron particles
- 刊名：Journal of Aerosol Science
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：105
- 期：Complete
- 页码：94-107
- 全文大小：3099 K
- 卷排序：105
文摘
Utilization of the second invariant of the velocity gradient tensor to visualize the vortex tubes. Increasing the AR from 1.2 to 2.5 intensifies the vortex tubes strength inside the impactor. There are two main vortex tube in side impaction chamber for small Reynolds numbers. The strength of vortices affects the undersize particles deposition in inertial impactors. For Collecting finer particles, an impactor with higher Reynolds number should be used.