貧油極限 的英文怎麼說
中文拼音 [pínyóujíxiàn]
貧油極限
英文
lean-limit- 貧 : 形容詞1. （窮） poor; impoverished 2. （缺少; 不足） inadequate; deficient 3. [方言] （絮叨可厭） garrulous; loquacious
- 油 : Ⅰ名詞1 （脂肪; 油脂） oil; fat; grease 2 （姓氏） a surname Ⅱ動詞1 （用桐油、油漆等塗抹） apply t...
- 極 : i 名詞1 （頂點; 盡頭） the utmost point; extreme 2 （地球的南北兩端; 磁體的兩端; 電源或電器上電流...
- 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
- 極限 : 1 （最高的限度） the limit; the maximum; the ultimate limit; limitation; extremity; tipping point...
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The result indicates that the range of stable lean operation varies greatly for different cavity depth d and length - depth - ratio l / d, it increases with increasing d and l / d, and increases, followed by decreasing with increasing incline angle of aft wall
研究發現:凹腔深度和長深比對凹腔火焰穩定器的貧油極限影響較大，貧油穩焰范圍與深度、長深比成正比，隨後壁傾斜角的增大先增大后減小。It is found that the liquid kerosene of injection upstream cavity could finish the process of atomization and evaporation in short distance, and enter into cavity through convection. aft wall is the primarily area of flame holding in cavity, and the only area when near the lean blowout limit, flame in area of fore wall are spread from it. cavity shear layer in reaction flow angle greatly to the main flow direction, and couldn ’ t reattach to aft wall anymore, it appears great difference in characteristics of cavity flowfield between non - reaction and reaction state
研究發現:凹腔上游噴注的液體燃料能夠迅速霧化、蒸發，並在較短距離內依靠對流輸運過程進入凹腔內部;凹腔後壁始終是凹腔火焰駐留的主要區域，在貧油極限時，也是唯一區域，並存在明顯的火焰由後壁向前壁的傳播過程;燃燒狀態下的凹腔剪切層以較大角度向下游主流發展，不再附著于凹腔後壁，與冷流中的凹腔流場特徵相差較大。
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