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ISSN:2394-3661 | Crossref DOI | SJIF: 5.138 | PIF: 3.854

International Journal of Engineering and Applied Sciences

(An ISO 9001:2008 Certified Online and Print Journal)

An efficient approximation method for the nonhomogeneous backward heat conduction problems

( Volume 5 Issue 3,March 2018 ) OPEN ACCESS
Author(s):

Jin Wen, Xiufen Cheng

Abstract:

This paper presents a new improved meshless numerical scheme to solve the nonhomogeneous backward heat conduction problems. Fundamental solutions of heat equations and radial basis functions of both   and   are employed to obtain a numerical  ill-conditioned, the Tikhonov regularization method is adopted to solve the resulting system of linear equations. Therefore, generalized cross-validation (GCV) method is used to choose a regularization parameter. The accuracy and efficiency of our proposed method is illustrated by several typical 1-D and 2-D numerical examples.

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