fore and aft distance 中文意思是什麼

fore and aft distance 解釋
縱向距離
  • fore : adj 1 前面的 （opp hind back aft）。2 先前的。adv 在前面，在船頭。 〈方言〉在前。n 前部；頭；前桅...
  • and : n. 1. 附加條件。2. 〈常 pl. 〉附加細節。
  • aft : AFT ＝ American Federation of Teachers 美國教師聯合會。adj adv 【航海】在船尾，近船尾，向船尾。 f...
  • distance : n 1 距離，路程。2 遠隔，遠離；遠處，遠方。3 （時間的）間隔，長遠，長久。4 懸殊。5 隔閡，疏遠。6 ...
  1. 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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