Lattice Boltzmann(LB)方法是近年来出现的一种流体计算的新方法,在流体力学及相关领域取得了很大的成功.但LB方法在模拟湍流流动时常常引起计算的不稳定.本文基于一种结合大涡模型的LB方法对圆柱绕流问题进行的模拟,并与其他文献的实验结果和计算结果进行对比.计算表明,这种混合LB方法能获得比较满意的结果.
参考文献
| [1] | Lesieur M;Metais O .New Trends in LES of Turbulence[J].Annual Review of Fluid Mechanics,1996,28:4582. |
| [2] | Chen S.;Doolen GD. .Lattice Boltzmann method for fluid flows [Review][J].Annual Review of Fluid Mechanics,1998(0):329-364. |
| [3] | Teixeira CM. .Incorporating turbulence models into the lattice-Boltzmann method[J].International Journal of Modern Physics, C. Physics and Computers,1998(8):1159-1175. |
| [4] | Hou S;Sterling J;Chen S et al.A Lattice Boltzmann Subgrid Model for High Reynolds Number Flows[J].Fields Institute Communications,1996,6:151-166. |
| [5] | Smagorinsky J .General Circulation Experiments with the Primitive Equations, Part I: the Basic Experiments[J].Monthly Weather Review,1963,91:99-165. |
| [6] | GuoZ;Zheng C;Shi B.An Extrapolation Method for Pressure and Velocity Boundary Conditions in Lattice Boltzmann Method[A].北京,2000:198-202. |
| [7] | M. Breuer .Large eddy simulation of the subcritical flow past a circular cylinder: numerical and modeling aspects[J].International Journal for Numerical Methods in Fluids,1998(9):1281-1302. |
| [8] | Ong L.;Wallace J. .THE VELOCITY FIELD OF THE TURBULENT VERY NEAR WAKE OF A CIRCULAR CYLINDER[J].Experiments in Fluids: Experimental Methods and Their Applications to Fluid Flow,1996(6):441-453. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%