摘要
针对二维非定常不可压Navier Stokes方程的特点 ,对流函数方程及漩涡度方程采用混合有限元方法离散 ,避免了处理漩涡度边界的困难 ,同时 ,对漩涡度方程的对流项 ,使用了沿特征线离散技术 。
In accordance with the characteristics of two dimensional unsteady and incompressible Navier Stokes equations,the stream equation and vorticity equation are discretized by mixed finite element method,which avoids the difficuty of treating the boundary of vorticity.Meanwhile,the convection term of the vorticity equation is discretized along characteristics.
出处
《山东大学学报（理学版）》
CAS
CSCD
北大核心
2002年第3期221-224,共4页
Journal of Shandong University(Natural Science)
基金
国家自然科学基金项目 (19972 0 3 9)
