Drag coefficient of a spherical particle attached on the flat surface

Chun Nan Liu, Chih Liang Chien, Chu Chun Lo, Guan Yu Lin, Sheng Chieh Chen, Chuen-Tinn Tsai*

*此作品的通信作者

研究成果: Article同行評審

11 引文 斯高帕斯(Scopus)

摘要

The previous analytical solution for the drag coefficient (C d) for a spherical particle attached on the flat surface, which was derived by O'Neill (1968), is only valid in the creeping flow conditions. It is important to extend O'Neill's formula to cover a wide range of particle Reynolds number (Re p). In this study, the drag coefficient was calculated numerically to cover Rep from 0.1 to 250. For a particle suspended in the air, an empirical drag coefficient exists, which is defined as C d = f × 24/Re p, where f is a correction factor depending on Re p. The applicability of the correction factor f for O'Neill's analytical equation for the spherical particle attached on the flat surface for Re p = 0.1 to 250 was examined in this study.

原文English
頁(從 - 到)482-486
頁數5
期刊Aerosol and Air Quality Research
11
發行號5
DOIs
出版狀態Published - 1 10月 2011

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