| Summary: | 碩士 === 中原大學 === 機械工程研究所 === 94 === The present study modifies Cotter’s model to predict the maximum heat transport capacity and to obtain the equation by the geometric shape of a single V-shaped microgroove of the micro heat pipe. The product of friction factor and Reynolds number correlated between the channel-half angle and contact angle is used to analyze the dimensionless liquid flow shape factor, and to find its optimal design.
The effects of both the contact angle, , and the product of friction factor and Reynolds number, , on the dimensionless liquid flow shape factor , are minial when the channel-half angle is less than 5 degree, i.e., . A higher dimensionless liquid flow shape factor, , is obtained at the low product of friction factor and Reynolds number. The results indicate that the optimal design of the dimensionless liquid flow shape factor is reached when contact angle, , and channel-half angle, .
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