submerged stage 中文意思是什麼
submerged stage
解釋
沉水植物階段-
At the preliminary stage of burning the gas flows along the back surface of the submerged nozzle and no recirculation forms in the aft - end cavity. at the medium stage of burning a weak recirculation forms in the rear of aft - end cavity by the force of injection flow. at the end stage of burning the flow separates at the c ombustion channel and a strong vortex forms in the aft - end cavity
實驗結果表明,在發動機工作過程中隨著燃面的退移,燃燒室尾部的流動會發生很大變化,初始時刻背壁區加質流沿噴管背壁進入噴管,背壁區沒有迴流形成;中間時刻在加質流的驅動下背壁區後部形成較弱的迴流;結束時刻氣流在燃燒室壁面分離,背壁區形成強烈的迴流。
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