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Title: 壁面熱傳導效應對微極流體沿垂直中空圓柱自然對流的影響
Authors: 張振龍
Contributors: 修平技術學院機械工程系
Keywords: 微極流體
共軛熱傳
固液介面溫度
局部熱傳率
Date: 2000-09
Issue Date: 2008-08-15T08:06:16Z
Abstract: 本文針對垂直細長申空圓柱管壁熱傳導效應對微極流體之流動及熱傳特性的影響,做一番深入之探討。數值計算,採用三次樣線定置法(Cubic Spline Collacation Method)來求解,為求結果之準確性,計算所得之數值與相對應狀況的文獻相比較,並獲得十分吻合之結果。
結果顯示:微極流體參數△及共軛熱傳參數P的增加,會導致壁面摩擦參數、局部熱傳率及介面溫度分佈等的降低。當普朗特數Pr增大時,固液介面溫度變化及局部熱傳率會增加,但壁面摩擦參數會降低。
總而言之,微極流體相較於牛頓流體,在壁面摩擦係數及壁面熱傳率上,會有較低的值,而在固液介面溫度上卻具有較高的值。
Relation: 修平學報 1, 45-62
Appears in Collections:[Department of Mechanical Engineering & Graduate Institute of Precision Machinery and Manufacturing Technology] Journal

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