New simple correlation formula for the drag coefficient of non-spherical particles

被引:521
|
作者
Hoelzer, Andreas [1 ]
Sommerfeld, Martin [1 ]
机构
[1] Univ Halle Wittenberg, Inst Verfahrenstech, Fac Ingn, D-06099 Halle, Saale, Germany
关键词
drag coefficient; correlation; orientation; non-spherical particles;
D O I
10.1016/j.powtec.2007.08.021
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A simple correlation formula for the standard drag coefficient (i.e. a single stationary particle in a uniform flow) of arbitrary shaped particles is established using a large number of experimental data from the literature and a comprehensive numerical study [A. Holzer, M. Sommerfeld, IUTAM Symposium on Computational Approaches to Multiphase Flow, Springer, 2006]. This new correlation formula accounts for the particle orientation over the entire range of Reynolds numbers up to the critical Reynolds number. Such a correlation may be easily used in the frame of Lagrangian computations where also the particle orientation along the trajectory is computed. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:361 / 365
页数:5
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