Shape Identification and Shape Design by Inverse Heat Transfer Methods

• Main Authors: Mei-Hsia Chang, 張美霞
• Other Authors: Chin-Hsiang Cheng
• Format: Others
• Language: zh-TW
• Published: 2001
• Online Access: http://ndltd.ncl.edu.tw/handle/77311488514477585510

碩士 === 大同大學 === 機械工程研究所 === 89 === The aim of this study is to investigate the performance of the inverse heat transfer method in applications to the shape identification and shape design problems. The approach is constructed by combining the curvilinear grid generation scheme, the direct problem solver, the conjugate gradient method, and the redistribution method. The task of this study includes two parts. The first part of the study is concerned with shape identification for an inner void within a solid body by using the outer surface temperature data, and five kinds of geometrical configurations are tested. Results show that the inner surfaces are accurately identified by using the optimization method. Then, in the second part of the study, shape design for the outer surface profile of a solid medium in a crossflow that contains a heating element and features an isothermal outer surface is investigated. Practical cases under different combinations of the dominant parameters, including Reynolds number (Re), thermal conductivity ratio (k■/k■), specified outer surface temperature (■d), and Prandtl number (Pr), are studied to demonstrate the performance of the approach.