Numerical investigation of a gas–solid turbulent jet flow with Reynolds number of 4500 using lattice Boltzmann method
Numerical investigation of a gas–solid turbulent jet flow with Reynolds number of 4500 using lattice Boltzmann method
复制标题
DOI：
10.1016/j.apm.2015.06.005
复制
发表时间：
2016
影响因子：
5
通讯作者：
Hao Zhou;G. Mo;K. Cen
中科院分区：
文献类型：
--
作者：
Hao Zhou;G. Mo;K. Cen
采用格子Boltzmann方法(LBM)对高雷诺数为4500的气固两相平面湍流射流进行了数值模拟。采用多重松弛时间(MRT)方法处理高雷诺数流体流动，并用拉格朗日方法跟踪颗粒。结果表明，随着流动的发展，流动由初始对称模式向非对称模式转变。非对称花纹首先出现在X/d=0.4时，此时涡旋结构开始形成。颗粒在不同斯托克斯数下的弥散分布不同。结果表明，MRT-LBM具有很好的模拟高雷诺数湍流流动的能力。
The gas–solid two-phase turbulent plane jet flow with high Reynolds number of 4500 was numerical investigated by means of lattice Boltzmann method (LBM). The multiple relaxation time (MRT) was employed to deal with the high Reynolds number fluid flows, and the particles were traced by the Lagrangian method. The results show that the flow changes from initial symmetric mode to asymmetric mode with the development of the flow. And asymmetric pattern appears first at the position ofx/d= 4, where the vortex structures begin to form. The dispersion of particles at different Stokes number shows various distributions. The MRT-LBM shows its good ability in simulating turbulent flow with the high Reynolds number.