二维空腔黏性流的格子Boltzmann方法模拟

SIMULATION OF VISCOUS FLOW IN A 2D-CAVITY BY THE LATTICE BOLTZMANN METHOD

用 13速六方格子Bhatnagar Gross Krook(缩写为BGK)模型模拟二维空腔黏性流 .给出了上边界流体作匀速运动时 ,具有不同雷诺数的空腔黏性流的流场速度分布情况 ,模拟了在雷诺数Re=3 0 0 0时 ,流场中的涡旋形成过程及流场稳定后 ,腔内密度。

In the paper,the fluid flow in a two\|dimentional cavity is simulated by using 13\|speed lattice Bahtnagar\|Gross\|Krook method on the hexagonal lattice.The evolution of driven flow is shown for different Reynold numbers.The detailed behaviors are simulated and the vortex formation,distribution of density pressure and temperature are shown at Reynold number 3000.