Reduced finite difference scheme and error estimates based on POD method for non-stationary Stokes equation

doi:10.1007/s10483-011-1464-9

Abstract

Abstract: The proper orthogonal decomposition (POD) is a model reduction technique for the simulation of physical processes governed by partial differential equations (e.g., fluid flows). It has been successfully used in the reduced-order modeling of complex systems. In this paper, the applications of the POD method are extended, i.e., the POD method is applied to a classical finite difference (FD) scheme for the non-stationary Stokes equation with a real practical applied background. A reduced FD scheme is established with lower dimensions and sufficiently high accuracy, and the error estimates are provided between the reduced and the classical FD solutions. Some numerical examples illustrate that the numerical results are consistent with theoretical conclusions. Moreover, it is shown that the reduced FD scheme based on the POD method is feasible and efficient in solving the FD scheme for the non-stationary Stokes equation.

2010 MSC Number:

LUO Zhen-Dong;OU Qiu-Lan;XIE Zheng-Hui. Reduced finite difference scheme and error estimates based on POD method for non-stationary Stokes equation. Applied Mathematics and Mechanics (English Edition), 2011, 32(7): 847-858.

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