臺灣博碩士論文加值系統

本論文分為兩大部份：
(一)衝擊熱傳研究：探討的方向有二(1)正向衝擊熱傳(2)側(橫)向衝擊熱傳。在正向噴流衝擊熱傳中，將以矩形雙噴管之二維數值作模擬分析，分為矩形單噴管及矩形雙噴管兩項。矩形單噴管的研究中將探討：邊界條件(自由噴流衝擊及半侷限邊界噴流衝擊)及出口條件(展開流及均勻流)對流場的影響；(2)側(橫)向噴流衝擊熱傳，將以三維數值模擬作分析，並以空氣為散熱介質，探討雷諾數、鰭片形狀傾斜和上平板傾斜設計對流場散熱效益的影響
(二)有限時間熱力分析：主要是應用有限時間熱力學，從穩態系統的觀點，以不同目標函數來探討不同熱機之性能最佳化。研究的題目有三：(1)等溫熱源、內可逆迪賽爾熱機之生態學準則函數最佳化(2) 等溫熱源、內可逆奧圖熱機之生態學準則函數最佳化(3) 等溫熱源、內可逆阿京生熱機之生態學準則函數最佳化。

First, the flow and heat transfer characteristics of an impinging laminar slot-jet, twin impinging laminar slot-jets, and heat sinks with sloped plate fins as well as with an inclined confinement surface are investigated by using the Star-CD software.
Parameters examined for a single jet include the width of the jet, Reynolds number, the separation distance between the slot-jet exit plane and the impingement surface, free-jet impingement or semiconfined-jet impingement, uniform inlet flow or fully-developed inlet flow.
An additional parameter, the separation distance between the twin jets is examined for the analysis on the dual jets. In addition, the effects of the titling of the crests of the plate fins relative to the approaching flow and the inclined confinement surface are found to be indeed the two important heat transfer augmentation features.
Secondly, a steady-flow approach in finite-time thermodynamics is employed to investigate the ecological-criterion function optimizations of the endoreversible Diesel, Otto, and Atkinson heat engines with isothermal heat sources. The results show that adopting the ecological-criterion function as the objective function, a heat engine may achieve the balance among the power output, thermal efficiency and entropy generation rate.

中文摘要 A-I
英文摘要 A-II
誌謝 A-III
目錄 A-IV
表目錄 A-VI
圖目錄 A-VII
符號說明 A-XI
第一章緒論 A-1
1-1研究動機 A-1
1-2文獻回顧 A-3
1-2.1衝擊噴流之熱傳研究 A-3
1-2.2散熱鰭片之研究 A-4
1-3本文研究目的 A-6
第二章熱傳分析 A-9
2-1一般熱傳導的分析 A-9
2-2熱擴散方程式 A-10
2-3具均勻截面積散熱片 A-11
2-4散熱片的性能 A-15
2-5具非均勻截面積的散熱片 A-16
2-6散熱片之基本假設 A-18
第三章理論分析 A-24
3-1基本理論與假設 A-24
3-2統御方程式 A-25
3-3紊流模式 A-26
3-4系統之差分方程式 A-29
3-5邊界條件及收斂標準 A-30
3-5.1正向衝擊研究 A-31
3-5.2橫向衝擊熱傳研究 A-34
3-5.3收斂標準 A-36
第四章正向衝擊之結果與討論 A-40
4-1正向衝擊之設定參數 A-40
4-2正向衝擊之格點測試 A-41
4-3正向衝擊之熱傳分析 A-42
第五章橫向衝擊之結果與討論 A-96
5-1橫向衝擊之測試參數 A-96
5-2橫向衝擊之格點測試 A-98
5-3橫向衝擊之流場分析 A-98
5-3.1橫向衝擊之速度場分析 A-99
5-3.2橫向衝擊之溫度場分析 A-99
第六章結論與未來發展 A-146
6-1結論 A-146
6-1.1正向衝擊熱傳之結論 A-146
6-1.2橫向衝擊熱傳之結論 A-148
6-2未來發展 A-150
參考文獻 A-151
中文摘要 B-I
英文摘要 B-II
目錄 B-III
圖目錄 B-IV
符號說明 B-XIII
第一章緒論B-1
1-1前言 B-1
1-2文獻回顧 B-2
1-3本文架構 B-4
第二章等溫熱源內可逆迪賽爾熱機之生態學準則函數最佳化 B-5
2-1理論模型與解法 B-5
2-2結果與討論 B-11
第三章等溫熱源內可逆奧圖熱機之生態學準則函數最佳化 B-41
3-1理論模型與解法 B-41
3-2結果與討論 B-46
第四章等溫熱源內可逆阿京生熱機之生態學準則函數最佳化 B-75
4-1理論模型與解法 B-75
4-2結果與討論B-80
第五章結論 B-114
5-1綜合結論　B-114
參考文獻 B-116
自傳 B-118

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