A NEW STABILIZED FINITE ELEMENT METHOD FOR SOLVING TRANSIENT NAVIER-STOKES EQUATIONS WITH HIGH REYNOLDS NUMBER |
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Authors: | Chunmei Xie & Minfu Feng |
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Institution: | Department of Basic Education, Chengdu Aeronautic Polytechnic, Chengdu 610100, China;School of Mathematics, Sichuan University, Chengdu 610064, China |
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Abstract: | In this paper, we present a new stabilized finite element method for transient Navier-Stokes equations with high Reynolds number based on the projection of the velocity and
pressure. We use Taylor-Hood elements and the equal order elements in space and second
order difference in time to get the fully discrete scheme. The scheme is proven to possess the
absolute stability and the optimal error estimates. Numerical experiments show that our
method is effective for transient Navier-Stokes equations with high Reynolds number and
the results are in good agreement with the value of subgrid-scale eddy viscosity methods,
Petro-Galerkin finite element method and streamline diffusion method. |
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Keywords: | Transient Navier-Stokes problems High Reynolds number The projection of the velocity and pressure Taylor-Hood elements The equal order elements |
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