scholarly journals A new stable second order nonconforming mixed finite element scheme for the stationary Stokes and Navier–Stokes equations

2011 ◽  
Vol 53 (9-10) ◽  
pp. 1956-1969 ◽  
Author(s):  
Dongyang Shi ◽  
Wei Gong ◽  
Jincheng Ren
Author(s):  
Shinichiro Miura ◽  
Kazuhiko Kakuda

A finite element scheme based on the Petrov-Galerkin weak formulation using exponential weighting functions for solving accurately, and in a stable manner, the flow field of an incompressible viscous fluid has been proposed in our previous works. In this paper, we present the Petrov-Galerkin finite element scheme for turbulent flow field. The incompressible Navier-Stokes equations are numerically integrated in time by using a fractional step strategy with second-order accurate Adams-Bashforth explicit differencing for both convection and diffusion terms. Numerical results obtained herein are compared through turbulent flow around a square cylinder at Re = 22,000 with the experimental data and other existing numerical ones.


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