Comparison of turbulent particle dispersion models in turbulent shear flows

被引:7
|
作者
Lain, S.
Grillo, C. A.
机构
[1] Fluid Mechanics Research Group, Energetics and Mechanics Department, Universidad Autónoma de Occidente (UAO)
关键词
turbulence; two-phase flow; turbulent particle dispersion; lagrangian approach;
D O I
10.1590/S0104-66322007000300005
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
This work compares the performance of two Lagrangian turbulent particle dispersion models: the standard model (e.g., that presented in Sommerfeld et al. (1993)), in which the fluctuating fluid velocity experienced by the particle is composed of two components, one correlated with the previous time step and a second one randomly sampled from a Wiener process, and the model proposed by Minier and Peirano (200 1), which is based on the PDF approach and performs closure at the level of acceleration of the fluid experienced by the particle. Formulation of a Langevin equation model for the increments of fluid velocity seen by the particle allows capturing sorne underlying physics of particle dispersion in general turbulent flows while keeping the mathematical manipulation of the stochastic model simple, thereby avoiding some pitfalls and simplifying the derivation of macroscopic relations. The performance of both dispersion models is tested in the configurations of grid-generated turbulence (Wells and Stock (1983) experiments), simple shear flow (Hyland et al., 1999) and confined axisyrnmetric jet flow laden with solids (Hishida and Maeda (1987) experiments).
引用
收藏
页码:351 / 363
页数:13
相关论文
共 50 条
  • [41] On the Mechanism of Turbulent Shear Flows
    Vorotilin, V. P.
    JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2019, 129 (01) : 147 - 158
  • [42] Turbulent shear flows simulation
    Kharlamov, SN
    Troitsky, OY
    KORUS 2003: 7TH KOREA-RUSSIA INTERNATIONAL SYMPOSIUM ON SCIENCE AND TECHNOLOGY, VOL 1 PROCEEDINGS: MACHINE PARTS AND MATERIALS PROCESSING, 2003, : 243 - 248
  • [43] An improved model for anisotropic dispersion of small particles in turbulent shear flows
    Carlier, JP
    Khalij, M
    Oesterlé, B
    AEROSOL SCIENCE AND TECHNOLOGY, 2005, 39 (03) : 196 - 205
  • [44] ON THE APPLICATION OF RANDOM FLIGHT DISPERSION MODELS IN INHOMOGENEOUS TURBULENT FLOWS
    TAMPIERI, F
    SCARANI, C
    GIOSTRA, U
    BRUSASCA, G
    TINARELLI, G
    ANFOSSI, D
    FERRERO, E
    ANNALES GEOPHYSICAE-ATMOSPHERES HYDROSPHERES AND SPACE SCIENCES, 1992, 10 (10): : 749 - 758
  • [45] Algebraic turbulent energy flux models for hypersonic shear flows
    Bowersox, Rodney D. W.
    North, Simon W.
    PROGRESS IN AEROSPACE SCIENCES, 2010, 46 (2-3) : 49 - 61
  • [46] EXAMINATION OF EDDY VISCOSITY MODELS FOR TURBULENT FREE SHEAR FLOWS
    ELASSAR, RJ
    PANDOLFI.PP
    JOURNAL OF BASIC ENGINEERING, 1971, 93 (04): : 624 - &
  • [47] Numerical Simulation of Particle Dispersion and Deposition in Turbulent Square Duct Flows
    Wang, Yan-Zhi
    Zhao, Yan-Lin
    Yao, Jun
    Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics, 2019, 40 (04): : 839 - 845
  • [48] CONTRIBUTIONS OF SWEEP AND EJECTION EVENTS TO PARTICLE DISPERSION IN WALL TURBULENT FLOWS
    Luo, Jianping
    Ushijima, Tatsuo
    Kitoh, Osami
    Lu, Zhiming
    Liu, Yulu
    PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON ASIAN AND PACIFIC COASTS, VOL 4, 2010, : 93 - +
  • [49] Inertial effects on two-particle relative dispersion in turbulent flows
    Gibert, M.
    Xu, H.
    Bodenschatz, E.
    EPL, 2010, 90 (06)
  • [50] A Modeling Study on Particle Dispersion in Wall-Bounded Turbulent Flows
    Lin, Jian-Hung
    Chang, Keh-Chin
    ADVANCES IN APPLIED MATHEMATICS AND MECHANICS, 2014, 6 (06) : 764 - 782