摘要
为验证数值模拟方法对于边界形状复杂流场的适用性,应用湍流大涡模拟方法对90°弯曲圆管内流动进行了数值模拟．采用Taylor-Galerkin有限元法求解．数值计算的结果与实验结果吻合较好．表明大涡模拟方法适用于边界形状复杂,存在各向异性的大尺度涡的流动仿真．
Presents the results of numerical simulation on turbulent flow in a circular-section 90-degree bend by means of large eddy simulation （LES）. The Taylor-Galerkin finite element method is used in the simulation. The results of calculation coincide with experiments reasonably. It demonstrates that LES technique is especially available for flow situations with complicated geometrical boundary system in which there are always anisotropic large vortexes.
出处
《北京工业大学学报》
EI
CAS
CSCD
北大核心
2007年第2期174-177,共4页
Journal of Beijing University of Technology
基金
北京市科委项目(D0604004040211)
关键词
湍流
大涡模拟
有限元
数值模拟
模型实验
turbulent flow
eddy currents
finite element method
computer simulation
