脈動渦旋 的英文怎麼說

中文拼音 [màidòngguōxuán]
脈動渦旋 英文
pulsating vortex
  • : 脈名詞1. (動脈和靜脈的統稱) arteries and veins2. (脈搏的簡稱) pulse 3. (像血管的組織; 連貫成系統的東西) vein
  • : 渦名詞1. (漩渦) eddy; whirlpool; vortex 2. (酒窩) dimple
  • : 旋Ⅰ動詞1 (旋轉) whirl 2 (用車床切削或用刀子轉著圈地削) turn sth on a lathe; lathe; pare Ⅱ名詞...
  • 脈動 : [物理學] [天文學] pulsation; pulsing; pulse; ripple; impulsive motion; pulsating; panting; loping...
  1. Optics aberrations aroused by moving vorticity pulse

    沖引起的光學畸變
  2. By performing fourier transformation, the relationship between the turbulent intensity of the particle and that of the carrier fluid was obtained which makes clear that particle size, specific gravity, velocity gradient, and the characteristic frequency of energy - containing eddies are four basic influencing parameters. it is proven theoretically that under certain conditions, the stream - wise and transverse particle turbulent intensities exceed those of the carrier fluid. based on the equations of two - phase flow, the presence of fine sediment suspension is shown to attenuate the turbulent intensity of the water

    通過對細小顆粒在剪切流場中運方程的fourier分析,得到了顆粒強度和流體強度之間的定量關系,表明顆粒粒徑、顆粒密度、流速梯度以及紊場含能的特徵頻率是影響顆粒強度的主要因素,首次從理論上證明了在一定條件下,顆粒在縱、垂向的強度均會超過相應的流體強度,為已有的實測資料提供了合理的解釋。
  3. In this work, a new dual triangulate bluff body vortex flowmeter was developed, the flux lower limit value of which lower by 50 % that of the old single bluff body vortex flowmeter. the linear correlation of the correlation between the velocity pressures of fluid disturbs wave and that of vortex precession in vortex precession flowmeter was brought to light, and a spectrum phase discrimination method based on fft to remove the effect of fluid pulsating interference on vortex precession flowmeter was advanced

    研製出比傳統單鈍體街流量計流量下限降低約50的新型雙鈍體街流量計;揭示出流中流量計流體振特性,並在此基礎上提出基於fft相位判別的數字信號處理方法來消除流場流量計的干擾的方法。
  4. And then simulations of gas - particle two phase plane wake and gas - particle two phase plane jet were carried out by using this model. after numerical simulations of the two flow fields were finished, series of analytical work was done. first, the distribution of time - averaged velocity, turbulence intensity was analyzed, and some of the simulation results were compared with those of the experiments ; the coherent structure of vortices in the near wall region of the plane wake flow were studied by describing the evolution of the eddy structures, including the forming, developing and shedding from the wall of the vortices in the near wall region ; the coherent structure of vortices in the whole field was also studied, such as the forming, developing, moving, pairing and merging of the eddies etc.

    在對上述兩種流形態的二維大模擬研究中,首先全面地分析了氣相時均流場的速度、湍流強度的分佈規律以及氣相速度的規律等並就部分數值模擬結果與實驗結果進行了對比研究;分析了平面尾跡流場中近壁處擬序結構,全面和逼真地反映了近壁處的生成、發展和脫落的規律;描述分析了平面尾跡流和平面射流的全場流擬序結構,從整個流場的角度反映的生成、發展、運以及之間相互配對、合併的作用規律等。
  5. When the pulsating jet was introduced in the heat exchanger, pulsating flow leads to the formation of an amount of vortices near the tube wall. the boundary layer was destroyed and the mixing of liquid was improved, so heat transfer enhancement was achieved

    將自激振蕩沖射流引入換熱器后,流體的導致了壁面處的大量生成,增加了流體的摻混,實現強化換熱的目的。
  6. An experimental study of the dynamic characteristics of swirlmeter in oscillatory flow

    流場中流量計流體振特性的實驗研究
  7. Under some conditions, vortices are alternately shed from each side of the cylinder, which induces the fluctuating forces acting on the cylinder. it decreases the operating time of the equipment. for the purpose of the long - term reliability and the safety designing of the industrial component and the theory of gas - liquid two - phase vortex street, gas - liquid two - phase vortex street is simulated by commercial software phoenics for the first

    工業領域內存在著大量的氣液兩相繞流柱體的現象,一定工況下形成交替脫落的,誘發柱體受到升力的作用,由此產生的疲勞損傷大大縮短了工業設備的使用壽命,為了促進氣液兩相街理論的發展和給工業設備的設計和安全運行提供充分的科學依據。
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