TURBULENCE EFFECTS ON THE GRANULAR MODEL OF PARTICLE MOTION IN A BOUNDARY LAYER FLOW

被引：14
作者：
Dehghan, Maziar [1 ,2 ]
Tabrizi, Hassan Basirat [1 ]
机构：
[1] Amirkabir Univ Technol, Dept Mech Engn, Tehran, Iran
[2] Semnan Univ, Dept Mech Engn, Semnan, Iran
来源：
CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2014年 / 92卷 / 01期
关键词：
turbulence modelling; Particle-gas interaction; kinetic theory of granular flow; two-phase flow; two-fluid model; near wall; GAS-SOLID FLOW; KINETIC-THEORY; NUMERICAL-SIMULATION; CFD SIMULATION; FLUIDIZED-BED; FLAT-PLATE; BEHAVIOR; HYDRODYNAMICS; MODULATION; PIPE;
D O I：
10.1002/cjce.21812
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Prediction of particle velocity in a dilute turbulent gas-particle flow nearby a flat solid boundary is investigated numerically using a fully Eulerian two-fluid model. The particulate phase model is based on the kinetic theory of granular flow. The turbulence in both phases is modelled. Inter-particle and particle-wall inelastic collisions are considered. Effects of presence/absence of particulate phase turbulence modelling on velocity of particles are investigated. Results indicate that turbulence modelling is necessary for particulate phase, but conventional models should be modified to consider particulate flow nature. Effects of free stream velocity and particle diameter on turbulence modelling results have been discussed.
引用
收藏
页码：189 / 195
页数：7
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