有限長的圓形通道進行往復運動時之熱傳研究

• Main Author: 賴若飛
• Other Authors: 吳鴻文
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/95967436488418841022

碩士 === 國立成功大學 === 造船及船舶機械工程學系 === 87 === For the marine heave diesel engine,the presssure and the temperature of the combustion chamber are about 125 bar,1500℃. The piston suffer huge stress under the environment of high temperature and pressure . In order to ensure the safety of stuucture and effective lubrication,we have to utilize the cooling core to cool the piston in my study. We simulate the reciprocal motion of the cooling system within a piston of the marine heave diesel engine by the numerical method .For governing equation about moving domain ,we deal with them by transforming coordinate,and we used SIMPLE method to discretize transformed equation .We aimed at investigating the heat transfer phenomena taking place inside a reciprocating smooth-walled tube by changing flow parameters and flow characteristic.