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題名 | 具多孔側進冷卻流體之突張式燃燒室流場分析= |
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作者 | 莊書豪; |
期刊 | 逢甲學報 |
出版日期 | 19911100 |
卷期 | 24 1991.11[民80.11] |
頁次 | 頁475-500 |
分類號 | 446.11 |
語文 | chi |
關鍵詞 | 多孔側進; 冷卻; 流場分析; 流體; 突張式; 燃燒室; |
中文摘要 | 本文主要的目的是以數值模擬來分析具多孔側進冷卻流體之突張式流場。研究燃燒 室壁上開口的數目,冷卻流體流量等對燃燒室流場之壁面溫度與燃燒效率的影響。本文首先 模擬恆溫流場,與Moon&Rudinger的實驗比較後發現數值結果與實驗數據相當吻合,在此驗 證本文數值分析的正確性。在反應流場的數值模擬中,本文發現壁面上的溫度及燃燒效率會 隨著噴入質量的增加而降低。再者,當噴入質量固定時,壁面上的溫度與燃燒效率會隨著噴 口數的增加而降低,但噴口數對燃燒效率的影響並不太敏感。 |
英文摘要 | A SIMPLE-C algorithm and Jones-Launder K-εtwo equation turbulent model are used to simulate the combustion flow sudden-expan-sion dump combustor with impregnating side-inlet on the colling fluid. The velocity, turbulent kinetic energy, temperature and combustion efficiency as a function of the number of side-inlet nozzle, impegnating mass fraction and air-fuel ratio are solved and shown a good in agreement with the experimental data of Moon. For the fixed value of sideinlet number, the drop of the wall temperature and combustion efficiency of dump combustor are decreased when the impregnating mass fraction is increased. For the fixed value of the impregnating mass fraction, the drop of the wall temperature and combustion efficiency are decreased when the number of side-inlet nozzle is increased. |
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