The grazing collision angle of aerosol particles colliding with infinitely long circular cylinders

Pao K. Wang; Tadeusz Jaroszczyk

doi:10.1080/02786829108959521

The grazing collision angle of aerosol particles colliding with infinitely long circular cylinders

Pao K. Wang, Tadeusz Jaroszczyk

Institute of Civil Aviation

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

A numerical model is used to determine the grazing collision angle of aerosol particles of a few micrometers in size colliding with infinitely long cylinders of radii of 15 and 30 μm. Collision mechanisms considered are interception and inertial impaction. Reynolds numbers ranging from 1 to 5 are investigated. The grazing angle is found to increase with increasing collision efficiency owing to the combined effect of inertial impaction and interception. An empirical fit is given to relate this angle with the collision efficiency. The size differentiation at different angles and the implications to aerosol filtration are discussed.

Original language	English
Pages (from-to)	149-155
Number of pages	7
Journal	Aerosol Science and Technology
Volume	15
Issue number	3
DOIs	https://doi.org/10.1080/02786829108959521
Publication status	Published - 1991

All Science Journal Classification (ASJC) codes

Environmental Chemistry
General Materials Science
Pollution

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10.1080/02786829108959521

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abstract = "A numerical model is used to determine the grazing collision angle of aerosol particles of a few micrometers in size colliding with infinitely long cylinders of radii of 15 and 30 μm. Collision mechanisms considered are interception and inertial impaction. Reynolds numbers ranging from 1 to 5 are investigated. The grazing angle is found to increase with increasing collision efficiency owing to the combined effect of inertial impaction and interception. An empirical fit is given to relate this angle with the collision efficiency. The size differentiation at different angles and the implications to aerosol filtration are discussed.",

author = "Wang, {Pao K.} and Tadeusz Jaroszczyk",

note = "Funding Information: This research is partially supported by National Science Foundation grant ATM-9002299, U.S. Environmental Protection Agency grant R-817108-01-0, and Corporate Research, Nelson Industries, Inc.",

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AU - Wang, Pao K.

AU - Jaroszczyk, Tadeusz

N1 - Funding Information: This research is partially supported by National Science Foundation grant ATM-9002299, U.S. Environmental Protection Agency grant R-817108-01-0, and Corporate Research, Nelson Industries, Inc.

PY - 1991

Y1 - 1991

N2 - A numerical model is used to determine the grazing collision angle of aerosol particles of a few micrometers in size colliding with infinitely long cylinders of radii of 15 and 30 μm. Collision mechanisms considered are interception and inertial impaction. Reynolds numbers ranging from 1 to 5 are investigated. The grazing angle is found to increase with increasing collision efficiency owing to the combined effect of inertial impaction and interception. An empirical fit is given to relate this angle with the collision efficiency. The size differentiation at different angles and the implications to aerosol filtration are discussed.

AB - A numerical model is used to determine the grazing collision angle of aerosol particles of a few micrometers in size colliding with infinitely long cylinders of radii of 15 and 30 μm. Collision mechanisms considered are interception and inertial impaction. Reynolds numbers ranging from 1 to 5 are investigated. The grazing angle is found to increase with increasing collision efficiency owing to the combined effect of inertial impaction and interception. An empirical fit is given to relate this angle with the collision efficiency. The size differentiation at different angles and the implications to aerosol filtration are discussed.

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ER -

The grazing collision angle of aerosol particles colliding with infinitely long circular cylinders

Abstract

All Science Journal Classification (ASJC) codes

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