博碩士論文 87323094 詳細資訊


姓名 余宣魁(Xung-Kuan Yu)  查詢紙本館藏   畢業系所 機械工程學系
論文名稱 預塗表面對旋轉塗佈的影響
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摘要(中) 結果發現混合層紊性熱量的傳輸,x方向的熱量傳遞 (圖5.24)約為y方向的的熱量傳遞 (圖5.25)的二倍,且x方向的熱量傳遞趨勢和流場截面 的分佈類似,y方向的熱量傳遞( )的趨勢和能量項(圖5.17)相似,都是愈往下游愈小。
並藉由聯合機率密函數 、 與 、 截面分佈圖比較發現聯合機率密度函數形狀與混合層內在結構、動量、熱量傳輸相關性高,當 形狀愈偏離高斯分佈,其 值愈大,當 形狀愈接近高斯分佈,其 值愈小,而 的分佈趨勢和 相同,上層區偏向於正,下層區偏向於負。
關鍵字(中) ★ 蒙地卡羅
★ 熱傳
★ 平行流
★ 稀薄氣體
★ pdf
關鍵字(英)
論文目次 摘要i
目錄ii
圖表目錄iv
符號說明ix
第一章緒論1
1-1簡介1
1-2稀薄氣體( dilute gas )定義3
1-3Boltzmann方程式的解法4
第二章 直接模擬蒙地卡羅法 9
2-1DSMC原理及應用 9
2-2網格設置12
2-3起始條件( Initial Condition )13
2-4邊界條件( Boundary Condition )14
2-5碰撞對( Collision Pair )的選擇16
第三章分子模型的選擇
3-1VHS分子模型18
3-2單原子分子模型19
3-3雙原子分子模型20
第四章動量脈動相關函數及機率密度函數
的求得
4-1連性流體紊流場中動量脈動相關函數23
4-2DSMC法的應用26
第五章結果與討論29
5-1 使用軟體與計算時間 30
5-2超極音速稀薄氣體自由流混合層之性質 31
5-3 超極音速稀薄氣體自由流熱量的傳輸 35
5-4 紊性熱量傳遞與分子熱量傳遞比較 35
5-5混合層各級一點脈動機率密度函數 38
5-6與連性紊流混合層的比較 45
5-7結論與建議47
參考文獻49
附表與附圖52
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16. J. P. Boon (1980), “Lattice Gas Automata: A New Approach to the Simulation of Complex Flows”, Plenum Press, New York, pp. 25-45
17. G. A. Bird (1970), “Direct Simulation and the Boltzmann Equation”, Phys. of
Fluids, vol. 13, pp. 2676-2681
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Rarefied Supersonic Flow into a Pitot Probe”, AIAA J., vol. 34, no. 1, pp. 83-88
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Velocity Gradient", Phys. of Fluids, vol. 13, pp. 1153
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Pressure Fields in a Two-Stream Mixing Layer", Ph. D. Thesis, U. of Illinois
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Layer", Proceedings Symposium on Transport Pheno. and App., Taipei, pp. 23-30
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vol. 1, no. 1, pp. 25-33
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in Hypersonic Rarefied Flow with the Direct Simulation Monte Carlo Method”, J. Fluid Mech. , vol. 312, pp. 149-172
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Computers Math. Applic. . vol. 35, no. 1/2, pp. 1-14
指導教授 周復初(Fu-Chu Chou) 審核日期 2000-7-17
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