渦流角 的英文怎麼說

中文拼音 [guōliújiǎo]
渦流角 英文
swirl angle
  • 渦 : 渦名詞1. （漩渦） eddy; whirlpool; vortex 2. （酒窩） dimple
  • 流 : 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...
  • 角 : 角Ⅰ名詞1 （牛、羊、 鹿等頭上長出的堅硬的東西） horn 2 （古時軍中吹的樂器） bugle; horn 3 （形狀像...
  1. Three kinds of trapezoid, delta and airfoil shaped vortex generators are designed based on traditional, sub boundary layer and micro - vortex generators conceptual design, to study the influence of the shape, height, aspect ratio, chordwise position, spanwise position and direction angles of vortex generators on boundary layer separation control

    （ 5 ）綜合分析研究了渦流發生器的工作原理和設計原則。根據國內外資料，研究了渦流發生器形狀、高度、展弦比、尖削比、弦向位置、展向位置和方位角等因素對附面層分離控制效果的影響。
  2. In the boundary, velocity and reynolds stress was distorted greatly by the vortex that leaded to an upwash domain and a downwash domain

    射流傾斜角度和速度的變化將引起渦旋對邊界層影響范圍的變化。
  3. Through the special studies on impacts to atomizing and humidifying effect from such factors as the firing pin type, centrifugal structure, higher spraying pressure, less aperture, initial water temperature and original state of the air, some conclusions are obtained, such as : the centrifugal nozzle with firing pin type, high pressure and little aperture has bigger air eddy and atomizing angle. the spaying liquid has high velocity. the droplet is small, and the heat and mass transfer velocity is high

    通過對撞針型結構、離心式結構、較高的噴水壓力、較小的噴嘴孔徑、噴水初溫及待加濕空氣初狀態對霧化加濕效果的作用原理的重點分析，得到：撞針型高壓小孔徑離心式噴嘴具有較大的空氣渦與霧化角，噴出的液體流速高、液滴小、水與空氣傳熱傳質速率高，撞針型結構提高了霧化加濕效率，高壓小孔徑的特點為霧化加濕提供了較大的能量，而噴水初溫的升高會減小水的粘性力和表面張力，從而優化加濕效果。
  4. By using harika algorithm, the characteristic of a high - pressure compressor is calculated at different installation angle of the inlet guide vane and the stator vanes ; the characteristics of a high - pressure turbine and a low - pressure turbine are simulated at different installation angles of the guide vane based on ainley method

    本文用harika演算法計算了導流葉片和靜子葉片安裝角度可調的變幾何高壓壓氣機特性；用ainley法計算了渦輪導向器面積可調的高壓渦輪和低壓渦輪的特性。
  5. Proceed from the angle of energy and taking considerations on interference factor and drag of airfoil profile, a kind of new typed calculation method on the design of vane air foil was put forward according to the vortex aerodynamics model of the rotor of wind turbines with horizontal axis

    摘要根據水平軸風力機轉子的渦流氣動模型，從能量的角度入手，考慮干涉因子和翼型阻力，提出了葉片翼型設計的一種新型計算方法。
  6. The effects of trailing edge jets on the vortex breakdown of a delta wing

    后緣噴流對三角翼前緣渦的影響
  7. The effects of vectored jet on leading edge vortex breakdown of 65 176 ; delta wing

    矢量噴流對65 176 ;三角翼前緣渦破裂的影響
  8. Through the analyzes of electromagnetic system of a axial symmetry by the method of electromagnetic vector potential, an eddy current field math model is build by triangle cell, this article has researched the effect of power frequency to eddy current density, penetration depth and the skin effect

    本文以電磁場矢量位有限元法為基礎對二維軸對稱場的磁場強度、渦流密度進行了計算求解，採用三角形單元和六面體單元建立了渦流場數學模型，研究了電源頻率對渦流密度、透入深度及集膚效應等場量的作用影響。
  9. For shelters, the results show : 1 ) to reduce the raining drops entering into the inlet and to decrease the influence of the vortex, the declining angle of 45 is recommended for the shelters ; 2 ) it is better to choose those shelters which are longer 100 mm ~ 200 mm than the height of the inlets, as they may protect the room from rain

    對于單側百葉風口的擋雨板，計算表明: 1 ）為了防止雨水隨空氣流入自然進風口，並且使風口盡量少受渦流區的影響，建議選用傾斜角度為45 「的擋雨板; 2 ）建議選用長度比風口高度長100mm - - 200 「的擋雨板，可以較好的避免擋雨板過短將雨水帶入室內和過長影響風口進風的情況。
  10. Based on the fundamental theory of eddy current, chip ring transformer was proposed to be used to reduce the eddy current loss for noncontacting synchro

    摘要從渦流產生的基本理論出發，介紹了採用片式環形變壓器結構來減少無接觸式自整角機的渦流損耗。
  11. Through the analyses of electromagnetic system of configuration of hollow metal cylinder by electromagnetic vector potential, an eddy current field math model is built by triangle cell, this article has researched power frequency to eddy current density, permeation depth and the effect of skin effect

    文中通過對一個空心金屬圓筒結構的電磁系統進行分析，以電磁場矢量位有限元法為基礎對磁場強度、渦流密度進行了計算求解，採用三角形單元建立了渦流場數學模型，研究了電源頻率對渦流密度、透入深度及集膚效應等場量的作用影響。
  12. A novel strip - coil - baffle structure used to enhance heat transfer and support the tube bundle for a tube - shell heat exchanger is proposed. the new structure can sleeve the tubes in bundle alternatively to create a vortex flow in a heat exchanger. the numerical simulation on the flow and heat transfer characteristics for this new structure heat exchanger is conducted. the computational domain consists of two strip - coil sleeved tubes and two bare tubes oppositely placed at each corner of a square. the velocity and temperature fields in such strip - coil - baffled channel are simulated using fluent software. the effects of the strip - coil - baffles on heat transfer enhancement and flow resistance in relation to the reynolds number are analyzed. the results show that this new structure bundle can enhance the heat transfer coefficient up to a range of 40 ? to 55 ? in comparison with a bare tube bundle ; meanwhile, higher flow resistance is also accompanied. it is believe that the strip - coil - baffled heat exchanger should have promising applications in many industry fields

    介紹了一種用於強化管殼式換熱器殼側傳熱和支撐管束的螺旋折流片新型結構，該結構是對換熱器管子相間地套上螺旋折流片以產生旋渦流動.研究模型是在正方形布置的4個管子中的2個對角管子套上螺旋折流片后形成的通道，利用fluent軟體對該上述四管通道模型的流場和溫度分佈情況進行了數值模擬;分析了四管通道模型中螺旋折流片對強化傳熱和流動阻力隨雷諾數的變化關系的影響.算例結果顯示該新型結構可比相同尺寸的光管通道中的情形傳熱系數提高約40 ? 55 ? ，同時也將伴隨較高的流動阻力.可以相信螺旋折流片式換熱器將會在許多工業領域有良好的應用前景
  13. Abstract : a novel strip - coil - baffle structure used to enhance heat transfer and support the tube bundle for a tube - shell heat exchanger is proposed. the new structure can sleeve the tubes in bundle alternatively to create a vortex flow in a heat exchanger. the numerical simulation on the flow and heat transfer characteristics for this new structure heat exchanger is conducted. the computational domain consists of two strip - coil sleeved tubes and two bare tubes oppositely placed at each corner of a square. the velocity and temperature fields in such strip - coil - baffled channel are simulated using fluent software. the effects of the strip - coil - baffles on heat transfer enhancement and flow resistance in relation to the reynolds number are analyzed. the results show that this new structure bundle can enhance the heat transfer coefficient up to a range of 40 ? to 55 ? in comparison with a bare tube bundle ; meanwhile, higher flow resistance is also accompanied. it is believe that the strip - coil - baffled heat exchanger should have promising applications in many industry fields

    文摘:介紹了一種用於強化管殼式換熱器殼側傳熱和支撐管束的螺旋折流片新型結構，該結構是對換熱器管子相間地套上螺旋折流片以產生旋渦流動.研究模型是在正方形布置的4個管子中的2個對角管子套上螺旋折流片后形成的通道，利用fluent軟體對該上述四管通道模型的流場和溫度分佈情況進行了數值模擬;分析了四管通道模型中螺旋折流片對強化傳熱和流動阻力隨雷諾數的變化關系的影響.算例結果顯示該新型結構可比相同尺寸的光管通道中的情形傳熱系數提高約40 ? 55 ? ，同時也將伴隨較高的流動阻力.可以相信螺旋折流片式換熱器將會在許多工業領域有良好的應用前景
  14. For shutters, the results show : 1 ) according to the formula p =, the theoretical value of is calculated by the effective velocity of the flow, and its engineering value is calculated by the arriving velocity of the flow, the relationship between the theoretical value of and its engineering value is 2 ) the smaller value of declining angle will result in the smaller pressure loss and smaller outlet velocities. as a result, the declining angle of 30 擄 or less is recommended in some places which need small wind velocity, such as broadcasting studio and library, and the declining angle of 45 擄 or less is recommended in places which need big wind velocity, such as cinema and office ; 3 ) the larger value of ratio between the wide of the shutter b and the space between two boards h ( b / h ) will result in the larger pressure loss and smaller outlet velocities. the range of b / h from 0. 8 to 2. 0 and the optimum value 1. 2 is recommended ; 4 ) the range of b from 10 mm to 50 nun and the optimum value 40 mm is recommended ; 5 ) the proper thickness of the boards 8 of the shutters is 1. 5 mm ; 6 ) cuneiform boards should replace the rectangle inlet boards of the shutters in order to obtain better ventilation

    數值模擬採用fluent軟體，計算結果用excel進行處理，通過對大量數值工況進行數值模擬計算，結果表明：對于單側百葉風口，計算表明： 1 ）對于公式p = （ ~ 2 ） 2 ，的理論計算值中定義為流體流經百葉風口內部時的速度，即有效速度，而工程上常使用流體的來流速度來計算，計算表明，的理論計算值與工程應用值的關系為（ _ （理論） ） （ _ （工程） ） = 0 . 813 ； 2 ）當來流速度一定時，擋板傾斜角度越小，壓力損失越小、出口速度越小；因此在要求進口風速比較小的場所，如播音室、圖書館等，宜採用擋板角度30的百葉風口；在要求進口風速比較大的場所，如電影院、辦公室等，百葉擋板的角度應選45 ； 3 ）當來流速度一定時，百葉擋板的擋板寬度b與擋板間距h的比值b h越大，壓力損失越大，出口速度越小，計算表明，鑒于壓力損失、出口風速、板間形成渦流區的大小，百葉擋板的b h值取0 . 8到2 . 0之間， b h = 1 . 2為最佳值； 4 ）當來流速度一定時，在計算的條件下，當百葉擋板寬度b = 40mm時，百葉擋板的阻力系數最小，考慮到渦流區等的影響，建議選用10mm b 50mm的百葉擋板；西安建築科技大學碩士學位論文5 ）百葉擋板的厚度取為1 . sinln為好; 6 ）百葉擋板的入口側可選用具有傾斜度的楔形擋板來代替矩形擋板，利用其較好的導流作用，可得到更好的出流效果。
  15. In this paper, the boundary layer characteristics of a supercritical airfoil is researched in wind tunnel. from the start to control boundary layer separation and to improve aerodynamics characteristics of this airfoil, three kinds of trapezoid, delta and airfoil shaped vortex generators are designed based on traditional, sub boundary layer and micro - vortex generators conceptual design. it include as follows : 1

    研究工作中，從控制該翼型附面層分離、提高大迎角氣動性能的角度出發，通過風洞實驗研究，研究了該翼型的附面層特性和氣動性能，針對其附面層特性，給出了梯形、三角形和翼型式三種渦流發生器設計方案，為下一步研究工作奠定了堅實基礎。
  16. Tests have been carried on a swirl - chamber diesel engine fueled with diesel oil - methanol - water composite fuels. the effects of using different diesel oil - methanol - water composite fuels are shown. angles of injection and proportion of water in methanol which have influence on the effect of using diesel oil - methanol - water composite fuels are investigated

    在渦流室式柴油機上進行了燃用柴油-甲醇-水三元乳化液的試驗研究，得出了各種柴油-甲醇-水三元乳化燃料的使用效果，並探討了供油角、甲醇中的含水量對發動機性能的影響。
  17. I setted up the physical modele and calculation - domain for the conviction heat transfer enchancement by the longitudinal vortex, and did the numerical value simulation for the chang of the velocity filed and temperature filed which influnced by lvg. at the same time, i studied the generation develepment of the longitudinal and its mechanism for the heat transfer enchancement. by the analycise of the result, i got the pricipium rule of how the size, ratio corner and distence of the lvg have influence on the generation and develepment of longitudinal vortex, and gave out the relative construct parameter scope

    通過對phoenics軟體進行應用開發，本文建立了渦旋強化換熱的物理模型和計算域，對擾流元作用下的流動速度場和溫度場的變化進行了數值模擬，研究了縱向渦旋發生發展及其強化對流換熱的機理。初步得出了擾流元的有關結構參數如總體尺寸、寬高比、攻角、間距等因素對渦流發生發展的影響規律，並給出了有關結構參數的取值范圍。
  18. In chapter 2, eddy - current test theory is analyzed from several aspects. though analyzed the equivalent circuit of eddy - current test, the reliability of eddy - current test technology on aluminum foil thickness test on line is given and the eddy - current sensor design method and the eddy - current sensor parameters selecting are discussed

    論文第二章從多個角度分析了電渦流檢測的原理，在對電渦流檢測等效電路分析的基礎上，提出了電渦流檢測技術在鋁箔厚度在線檢測系統中應用的可行性，文中還詳細討論了電渦流傳感器的設計方法及課題中電渦流傳感器參數地選擇。
  19. The principal contributions of this dissertation are : 1. a high fidelity and real - time rotor wake inflow model was built up. based on peters - he finite states wake theory, a new influence coefficient matrix for high speed flight was derived, the modified wake model is better suitable for the flight state with a large wake skew angle

    本模型以peters - he有限狀態尾跡理論為基礎，修正了大尾跡傾斜角時的誘導速度影響系數矩陣，並結合了王氏渦流理論，導出了旋翼誘導速度垂向分量和旋轉分量的表達式，可計算平尾、尾槳和垂尾氣動中心處誘導速度各分量。
  20. Finally, numerical analysis of delta wing ' s fluid field was performed by cfd software for the purpose to verify the control ability of microactuator array and the feasibility of the scheme

    最後，為了驗證微致動器陣列對三角翼渦流的操縱能力和控制方案的可行性，本文利用計算流體力學軟體對微致動器陣列作用下的三角翼的流場進行了數值模擬計算。
分享友人
分享到 Line

分享到臉書