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題名 | 後燃器燃燒流場分析=Combustion Flowfield Analysis of an Afterburner with V-Gutter Flameholders |
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作者姓名(中文) | 莊書豪; 呂省吾; 洪祖昌; | 書刊名 | 機械技師學刊 |
卷期 | 7:3 2014.11[民103.11] |
頁次 | 頁39-48 |
分類號 | 446.4122 |
關鍵詞 | 後燃器; 燃燒流場; 駐燄器; Afterburner; V-gutter flameholders; SIMPLE-C algorithm; |
語文 | 中文(Chinese) |
中文摘要 | 本文針對具雙環V型駐焰器之後燃器進行燃燒流場之數值模擬分析。本文使用k-ε紊流模式及一步反應機構,且假設反應速率無限快的燃燒模式來解穩態的燃燒室流場及燃燒分析。文中比較SIMPLE與SIMPLE-C兩種數值法則,結果顯示SIMPLE-C有較佳的殘餘質量收斂速率。文中並分析具雙環駐焰器之後燃器燃燒流場之速度分佈、溫度分佈、燃油分佈、燃燒效率和壓力分佈等物理量的變化情形。 |
英文摘要 | Reacting flow of a afterburner combustor with two V-gutter flameholders was analyzed by employing the SIMPLE-C algorithm and turbulent k-ε,model and was assumed on step chemica1 reaction with infinite fast reaction rate. The effects without and with flameholders on the calculated momentum and combustion flow field were shown in this paper. The difference between the isothermal and reacting flow field of the afterburner. with two V-gutter flameholders was also investigated. From the calculated results , the increasing pressure loss , mixing efficiency, average temperature and combustion efficiency affected from V-gutter are significantly therein found. SIMPLE-C algorithm had a better residue mass convergence rate than that of SIMPLE algorithm in this afterburner combustion analysis. |
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