渦跡 的英文怎麼說

中文拼音 [guōjī]
渦跡 英文
vortex trail
  • 渦 : 渦名詞1. （漩渦） eddy; whirlpool; vortex 2. （酒窩） dimple
  • 跡 : 名詞1 （留下的印子; 痕跡） mark; trace 2 （前人遺留的建築或器物等） remains; ruins; vestige 3 （...
  1. Several regression models, with an independent variable of sea surface geostrophic current, were set up to simulate the real trajectories of drifters

    對南海中伴隨渦旋運動的2個浮標模擬試驗顯示，諸多模型中以海表地轉流、風海流及背景流為自變量的回歸模型模擬浮標漂流軌跡效果較好。
  2. In chapter 2, a simplified analytical model is presented for the analysis of the bvi mechanism, adopting the beddoes " prescribed wake model. by this model, the azimuthal location and miss - distance of the bvi and the radiation directivity of the bvi noise are calculated and discussed, and some conclusions are obtained

    在第二章，使用beddoes預定尾跡模型，建立了一個用於旋翼槳-渦干擾特性機理分析的簡化數學模型，分別對旋翼槳-渦干擾位置、槳-渦干擾距離和聲輻射方向性等進行了計算和分析，得出了有意義的結果。
  3. Based on an engineering background, through numerical simulation of the flow field in the hp turbine of the energy efficient engine ( e3 ), the article research the unsteady flow in a transonic turbine stage, the unsteady phenomena in the stage include the shockwave, wake, shedding vortex, endwall vortex, passage vortex and leakage vortex, etc. there are two shockwaves generated on the vane the tailing edge, one on suction side is named moving shockwave, and name another on pressure side steady shockwave

    本文首先對于研究的意義和國內外研究的現狀做了簡要的介紹，再從某工程背景出發，通過對e3發動機高壓渦輪內流場的數值模擬，研究了干涉的周期性的問題，以及渦輪級內常見的非定常現象：激波、尾跡、脫落渦、根腳渦、通道渦、漏流渦。導向器尾緣會出現兩道激波，在吸力面的激波可稱為「運動」激波，壓力面的激波可稱為「定常」激波。
  4. The results indicated that the generation of trailing - vortex of downstream adjacent vanes could be restrained effectively by upstream wake when the passing frequency and the amplitude of wake defect satisfy some conditions, associated with a significant enhancement of time - averaged aerodynamic performances : loss coefficient reducing 40. 2 % and the ratio of loading coefficient and loss coefficient increasing 93 %

    研究表明：滿足一定通過頻率和虧損幅值條件的尾跡能夠有效抑制下游相鄰葉排尾緣渦的生成，達到控制或是推遲附面層非定常分離的目的，從而使得流場時均性能大幅度的提高，損失系數降低了40 . 2 % ，功損比增加93 % 。
  5. Numerical simulation of unsteady vortex in the wake of cascade flow

    葉柵流場尾跡中非定常渦系的數值模擬
  6. Check no damage for fan blades and turbine blades

    檢查風扇葉片和渦輪葉片無損壞跡象。
  7. Eventually mode a and b coexist in the wake, which confirms the previous studies. besides, the present paper finds that downstream the streamwise

    從圓柱表面到旋渦形成區、到近尾跡再到下游尾跡流向渦結構從模式a轉換到模式b 、雙渦對模式、再恢復為模式a 。
  8. Large eddy simulation of gas - particle two phase turbulence was carried out, such as simulation of two - dimensional gas - particle two phase wake, two - dimensional gas - particle two phase jet and three - dimensional gas - particle two phase rectangular jet. in these works, les was adopted to simulate gas phase flow and lagrangian approach was utilized to simulate the particles " motion. a series of significant and interesting results were obtained

    文中對二維氣粒兩相平面尾跡流場、二維氣粒兩相平面射流流場以及三維氣粒兩相矩形射流流場中的氣相流場進行了大渦模擬、對顆粒運動擴散採用lagrangian模擬研究后，取得了一系列具有重要的理論意義和實際意義的研究成果。
  9. At the point of co = g > c, it is the hopf bifurcation that the rotor orbit of shaft centerline is the periodic whirl of small amplitude. the method is suitable for the multi - freedom system

    數值求解系統動力學方程，在_ c處，轉子軸心軌跡為極小幅值的周期渦動，此為hopf分岔，分叉后，系統運動為擬周期運動。
  10. In the pseudo - time region, high efficient lu - sgs scheme was used in time - marching. cases with uniform or non - uniform inlet stagnation pressure and with or without tip - gap flow were studied. computed results showed that complex structure vortex appeared and secondary flow occurred in the flow of cascade with tip - gap

    對進口總壓均勻或總壓周向虧損（模擬上游尾跡） 、葉尖無間隙或有間隙等三種不同情況的流場計算結果，進行對比分析發現，流場中廣泛存在流動分離、分離渦以及二次流，這是引發非定常擾動的根源。
  11. This paper studied the wake improvement by stern fin and vortex generator numerically

    本文中利用數值計算討論使用艉導流翼與渦流導流翼來改善艉跡流特性的可能性。
  12. 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.

    在對上述兩種流動形態的二維大渦模擬研究中，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脈動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旋渦擬序結構，全面和逼真地反映了近壁處旋渦的生成、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動旋渦擬序結構，從整個流場的角度反映旋渦的生成、發展、運動以及旋渦之間相互配對、合併的作用規律等。
  13. Furthermore, the horseshoe shape vortex system occurred to the upstream of the jet exit and the layer structure of vortexes occurred to the wake of the reverse flow region downstream of the jet are also investigated

    另外，觀測到射流噴口上流的馬蹄渦系以及射流逆流區下游尾跡區旋渦的層狀結構形式。
  14. When the well of eternity collapsed, it created a raging magical wortex, enormous in size, that still exists today

    永恆之井崩塌的時候，產生了一個巨大無比的魔法漩渦，而這個漩渦至今仍然在怒號著，沒有一點消散的跡象。
  15. At first, the generating mechanisms of four kinds of wake features are studied in the thesis. we have simulated the features of ocean surface waves, kelvin wake, narrow v wake, turbulent wake, vortex wake, and internal wake. the kinetic equation of kelvin wake have been analyzed and improved, which can be used to calculate the kelvin wake of a submerged moving body

    論文首先研究了四種常見尾跡特徵的產生機理，模擬得到了海面、 kelvin尾跡、窄v尾跡、湍流和渦流尾跡以及內波尾跡特徵；改進了kelvin尾跡的動力學模型，使之能夠計算運動物體下潛后的kelvin尾跡波高分佈。
  16. The pattern on the hologram can project hundreds or thousands of beams that can be moved forward, back, sideways, up or down or can twist the light in a corkscrew trajectory that creates a vortex

    雷射全像術的圖案可以投射出成千上百道光束，並且能夠讓光束前後左右上下任意移動，甚至扭曲成螺旋形軌跡，製造出漩渦。
  17. Abstract : a modified droplets trajectories analysis model is established for the efficiency estimation of liquid - liquid hydrocyclones based on the single vortex field theory

    文摘:在單渦流場理論基礎上建立了一種改進的油粒軌跡模型，用以預測油水旋流器粒級分離效率。
  18. Work is done to find out the relationship between scroll wraps profile and the track of machining tool. a general equation about the relationship is recommended

    摘要對渦旋型線加工的刀具中心軌跡程序進行了分析，提出了通用刀具中心軌跡方程並簡單介紹了其應用情況。
  19. The spanwise characteristic length determines the transition features and global properties of the wake. especially for the specific spanwise characteristic length linear stable mode can dominate the wake in place of mode a and determine the spanwise phase difference of the primary vortices shedding

    尤其值得注意的是發現在特定的展向特徵長度下線性穩定的展向模態會取代模式a而在尾跡中占優並決定卡門渦脫落的展向相位差。
  20. In hong kong, however, this is less likely to happen. the deflationary pressures are mainly externally driven, and the economy is small and open in nature. any signs of external economic recovery should reverse the deflationary trend

    但香港的通縮未必會發展成為漩渦，因為本港的通縮壓力主要是外圍帶動，加上香港是一個細小而開放的經濟體系，任何外圍經濟復甦的跡象都會刺激香港經濟，並且結束通縮的趨勢。
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