SIMULATION OF TWO-DIMENSIONAL OSCILLATING FLOW USING THE LATTICE BOLTZMANN METHOD
SIMULATION OF TWO-DIMENSIONAL OSCILLATING FLOW USING THE LATTICE BOLTZMANN METHOD
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DOI：
10.1142/s0129183106009023
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发表时间：
2006-05
影响因子：
1.9
通讯作者：
Yong Wang;Ya-Ling He;G. Tang;W. Tao
中科院分区：
文献类型：
--
作者：
Yong Wang;Ya-Ling He;G. Tang;W. Tao
本文采用格子Boltzmann方法对定壁温条件下二维通道内不可压缩振荡流的强迫对流进行了数值研究。通道中的流体的振荡运动由周期性压力梯度驱动。本研究采用的模型是耦合格子Bhatnagar-Gross-Krook模型。进出口边界采用压力边界条件，固体边界采用外推格式。给出了不同Womersley数和压力梯度幅值对流动和传热特性的影响。结果与以往的数值模拟和理论分析相一致。
A numerical study is presented for forced convection of an incompressible oscillating flow in a two-dimensional channel at constant wall temperature using the lattice Boltzmann method. The oscillatory motion of the fluid in the channel is driven by a periodic pressure gradient. The model adopted in this study is the coupled lattice Bhatnagar-Gross-Krook model. Pressure boundary condition is used in the inlet and outlet boundaries, and extrapolation scheme is used in the solid boundaries. The dependence of the flow and heat transfer characteristics on different Womersley numbers and the amplitudes of the pressure gradient are presented. Results are consistent with those from previous numerical simulations and theoretical analyses.