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论文类型：期刊论文

发表时间：2009-01-01

发表刊物：NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS

收录刊物：SCIE、EI、Scopus

卷号：55

期号：4

页面范围：313-323

ISSN号：1040-7790

摘要：This article presents a numerical model to solve inverse geometry heat transfer problems to determine an unknown boundary shape. The evolution of unknown shapes is described by the level-set method (LSM) and is controlled by a Hamilton-Jacobi equation which is solved by a finite-difference (FD) scheme. The element-free Galerkin method (EFGM) is employed to determine the temperature field in the process of boundary evolution via a slight adjustment of the position and number of nodes. The proposed numerical model is verified via an identification of a curvilinear boundary, and the effects of initial guess, number of probing points, measurement error, and density of EFGM nodes and the LSM FD grid are taken into account.