振蕩射擊 的英文怎麼說

中文拼音 [zhèndàngshèjī]
振蕩射擊 英文
concussive shot
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 蕩 : Ⅰ動詞1 （搖動; 擺動） swing; sway; wave 2 （無事走來走去; 閑逛） loaf; wander; roam; loiter; go a...
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 射擊 : 1 （開槍、開炮） shoot; fire 2 [體育] shooting 3 [軍事] firing; 射擊靶場 firing range; 射擊場 sho...
  1. The shearing layer is carried by the jet and the eddy is formed because of the instability and selective amplification of shearing layer which will propagate to the downstream. as the eddy impacts the impinging wall, a wave of pressure disturbance with certain frequency is induced. this wave then propagates to the upstream with high speed, and results in the overlap and amplification of the waves when the frequencies of them are close with each other

    當前噴嘴流束中的不穩定擾動波在穿過腔內的剪切層時，剪切層對其有選擇放大作用，形成渦環結構，剪切流動中渦環與碰撞壁撞擊，在碰撞區域產生壓力擾動波並向上游反射，在上游剪切層分離處誘發新的擾動的產生，當新擾動與原擾動匹配時，射流上游就被不斷地受到周期性激勵，腔內就產生流體自激振蕩並在後噴嘴出口形成脈沖射流。
  2. It was found in preliminary tests that sound pressures of the oscillations were diminished with tripping wires or side jets when the wires or the jets were introduced into the impinging shear flow in certain ways

    初步的試驗表明，在一定條件下絆線或旁射流削弱了流動的自激振蕩。為探求它們削弱自激振蕩的機理，在非撞擊剪切層上進行一組可控實驗。
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