Interface Evolution via aLeast-Square Velocity Extension: Application to Tumor Growth

碩士 === 國立臺灣大學 === 數學研究所 === 96 === The growth of tumor boundary is an unstable evolution process. In numerical simulation, the evolution of the boundary is technically very sensitive to its curvature, and causes numerical instability and incorrect calculation. In this paper, we propose a least-squar...

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Bibliographic Details
Main Authors: Hao-Chih Lee, 李浩志
Other Authors: I-Liang Chern
Format: Others
Language:en_US
Published: 2008
Online Access:http://ndltd.ncl.edu.tw/handle/18625497801897430560
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Summary:碩士 === 國立臺灣大學 === 數學研究所 === 96 === The growth of tumor boundary is an unstable evolution process. In numerical simulation, the evolution of the boundary is technically very sensitive to its curvature, and causes numerical instability and incorrect calculation. In this paper, we propose a least-square method for the extension of the boundary velocity. This extension, together with the level set method, can compute a continuous model for the tumor growth and achieve the second order accuracy.