Numerical investigation of behaviour of small particle passing through normal shock wave (1st report, in case of steady shock wave)

被引：0
作者：
Shinohara, Youhei [1 ]
Toda, Kazuyuki [1 ]
Yamamoto, Makoto [1 ]
机构：
[1] Department of Mechanical Engineering, Tokyo University of Science, Tokyo 162-8601, 1-3 Kagurazaka, Shinjuku-ku
来源：
Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B | 2003年 / 69卷 / 682期
关键词：
Computational Fluid Dynamics; Laser Doppler Velocimeter; Numerical Analysis; Shock Wave;
D O I：
10.1299/kikaib.69.1372
中图分类号：
学科分类号：
摘要：
Measuring techniques such as Laser Doppler Anemometry (LDA), Particle Image Velocimetry (PIV), Particle Tracking Velocimetry (PTV) and Holographic Particle Image Velocimetry (HPIV) depend on the velocity information obtained from a micron-sized particle traveling in a fluid. The traceability of these particles to any velocity changes in a flow field is one of the key assumptions, in applying such techniques. However, in the flow field with large velocity gradient, this assumption would become improper. This paper shows a numerical investigation for the motion of tracer particles in the presence of steep velocity gradient across a steady shock wave. Various particles with different radius and density are taken into account. The particle motions are simulated by using Basset-Boussinesq-Oseen (BBO) equation. The contribution of each term in the equation to particle behaviour is investigated. The results indicate that the non-dimensional settling length can be estimated only from the particle diameter.
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页码：1372 / 1378
页数：6
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