高亞音速流 的英文怎麼說

中文拼音 [gāoyīnliú]
高亞音速流 英文
high subsonic stream
  • : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
  • : 名詞1. (聲音) sound 2. (消息) news; tidings 3. [物理學] (音質) tone 4. (姓氏) a surname
  • : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
  • : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
  • 音速 : [物理學] velocity of sound; speed of sound; sound velocity
  1. The main results are : supersonic region and subsonic region can co - exist in flow path simultaneously, subsonic flow is insignificance for engine performance ; total pressure of primary rocket should be decreased when mach number is increased. in the experimental aspect, some components of ejectorjet experimental system were improved, ejectorjet experiments using alcohol as secondary fuel were conducted

    由數值計算獲得的結論為:引射火箭內的一般態為超區與區共存,區不具備做功能力;飛行馬赫數增大,引射火箭內更易於產生壅塞;為了獲得最佳的性能,隨著飛行馬赫數的提,應當降低一次火箭的工作壓強。
  2. The comparison showed that : ( l ) farassat 1a formula is the simplest one and work well for the subsonic rotor. ( 2 ) both kirchhoff formula and k - fwh formula can predict the nonlinear noise generated by transonic rotor ; ( 3 ) when the surface is not positioned in the linear region, kirchhoff approach for rotating integration surface could lead to substantial error, but k - fwh formula can still work well

    數值研究表明: farassat1a公式在預測線性噪聲方面簡單有效,適用於旋翼的噪聲預測; kirchhoff公式和k - fwh公式均能夠預測跨旋翼聲場,並且具有較的精度;當聲源面位於動非線性時, kirchhoff公式會導致很大的計算誤差,而k - fwh公式不存在這樣的問題。
  3. Here is what they now generally expect from an event the scale of those that struck long valley and yellowstone : instead of a slow leak of red - hot lava as is seen creeping down the sides of kilauea volcano in hawaii, these eruptions feature supersonic blasts of superheated, foamlike gas and ash that rise buoyantly all the way into the earth ' s stratosphere, 50 kilometers high

    對于造成長谷與黃石公園的那些爆發,或是相同等級的現象,目前他們普遍的看法是:這些爆發不像夏威夷奇勞火山緩慢滲出的紅熱巖漿、沿著火山側蜿蜒出;它們的特色是以超的沖擊波,噴出極熱、泡沫般的氣體與火山灰,這些物質極易進入地球大氣的平層,上升到50公里的處。
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