Study of numerical errors in direct numerical simulation and large eddy simulation

• 作 者: 杨小龙 符松
• 机 构: ResearchCenterforAdvancedPower-StrainTechnology,SchoolofAerospaceEngineering
• 出 处: 应用数学和力学：英文版
• 发表日期: 2008年7期
• 关键词: 流体力学 大涡模拟 直接数字模拟 数字误差 numerical errors truncated Navier-Stokes （TNS） model Pad
• 基金项目: Project supported by the National Natural Science Foundation of China （No. 10502029） and the Scientific Research Foundation for Returned Overseas Chinese Scholars of Ministry of Education of China

<正>By comparing the energy spectrum and total kinetic energy,the effects of numerical errors (which arise fzom aliasing and discretization errors),subgrid-scale (SGS)models,and their interactions on direct numerical simulation (DNS)and large eddy si