Abstract
A proper orthogonal decomposition (POD) method is applied to a usual finite element (FE) formulation for parabolic equations so that it is reduced into a POD FE formulation with lower dimensions and enough high accuracy. The errors between the reduced POD FE solution and the usual FE solution are analyzed. It is shown by numerical examples that the results of numerical computations are consistent with theoretical conclusions. Moreover, it is also shown that this validates the feasibility and efficiency of POD method.
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This work was supported by National Natural Science Foundation of China (Grant Nos. 10871022, 10771065, and 60573158) and Natural Science Foundation of Hebei Province (Grant No. A2007001027)
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Luo, Z., Chen, J., Sun, P. et al. Finite element formulation based on proper orthogonal decomposition for parabolic equations. Sci. China Ser. A-Math. 52, 585–596 (2009). https://doi.org/10.1007/s11425-008-0125-9
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DOI: https://doi.org/10.1007/s11425-008-0125-9