碩士 / 國立成功大學 / 系統及船舶機電工程學系碩博士班 / 98 / In many practical engineering applications the direct problem is utilized to solve for its physical quantity by substituting the known parameters to the system. In fact, there are many physical values that can not be obtained through direct measurement or calculation in real engineering. However they can be estimated by using inverse design method based on measuring data. These problems are called inverse problems.
Inverse problems are also called optimum design problems. Because Inverse problems are used known parameter or the physical quantity to carried on optimization for the complex engineering problems.
The present study utilized the actual heat sink modules and the general purpose commercial code CFD-ACE+ to find the maximum temperature at fin base and to design the objective function for the optimization problem. A three-dimensional inverse problem in estimating the design variables for actual heat sink modules is solved by using the Levenberg-Marquardt Method (LMM). Finally the original and optimum heat sink modules are carried on the experimental verification.
Results show that the maximum temperature at fin base can be reduced in the optimum heat sink modules and the measured and calculated temperatures on the fin surface are close enough to verify the present design algorithm and calculations.
| Identifer | oai:union.ndltd.org:TW/098NCKU5345020 |
| Date | January 2010 |
| Creators | Zhong-ZeLeou, 柳仲澤 |
| Contributors | Cheng-Hung Huang, 黃正弘 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 78 |
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