New simple correlation formula for the drag coefficient of non-spherical particles
New simple correlation formula for the drag coefficient of non-spherical particles
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DOI：
10.1016/j.powtec.2007.08.021
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发表时间：
2008-06-02
影响因子：
5.2
通讯作者：
Sommerfeld, Martin
中科院分区：
文献类型：
--
作者：
Hoelzer, Andreas;Sommerfeld, Martin
利用文献中大量的实验数据和全面的数值研究，建立了任意形状颗粒的标准阻力系数(即均匀流中单个静止颗粒)的简单关联式[A.Holzer，M.Sommerfeld，IUTAM多相流计算方法研讨会，Springer，2006]。这个新的关联式解释了雷诺数到临界雷诺数的整个范围内的颗粒取向。这种关联性可以很容易地用于拉格朗日计算框架中，其中还计算了粒子沿轨迹的取向。(C)2007 Elsevier B.V.保留所有权利。
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.