表面渦流 的英文怎麼說

中文拼音 [biǎomiànguōliú]
表面渦流 英文
surface eddy
  • 表 : Ⅰ名詞1 （外面;外表） outside; surface; external 2 （中表親戚） the relationship between the child...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 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...
  • 表面 : surface; superficies; boundary; face; rind; sheet; skin; outside; appearance
  1. By comparing the dry plate pressures drop and distributions of velocities simulated on single valve with those of double valves, it was found that there was intense turbulence in the flow fields around fixed - valve, there were eddy areas between valve side orifices and tray wall, there were eddies above the valves too, these led to the complex behaviors of gas perforating valve, these had a great effect on the gas - liquid mass transfer process. at the same time, in order to prevent the disadvantageous effect of gas between one valve with another on the gas - liquid mass transfer, it was very effective to change the fields of gas perforating valve by folding the edges of valve

    通過對數值模擬得出的單閥和雙閥塔板的干板壓降及流場速度分佈分析對比后發現，固定閥周圍流場存在較強的湍動，閥側孔與塔板壁面區域以及閥體的上方空間存在明顯的渦流區，使氣體穿閥后的行為變得復雜，並對氣液傳質過程產生重大影響；模擬結果表明，為防止和削弱固定閥間的對沖造成的「死區」對傳質帶來的不利影響，通過折邊來改變氣體的氣路是非常有效的，模擬值與實驗值基本得到吻合。
  2. 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。
  3. Induction heated oil tempered spring wire is a kind of new technical material which has been developed since 1980s. it can be heated by means of eddy induced into itself through electromagnetic coil and this method is mainly used in surface quenching. with correct designing and reasonable current frequency, induction coil and heat treatment process selected, as well as plc controlling applied, the wire can be uniform heated along cross - sectional and longitudinal direction and can be quenched and tempered continuously

    應加熱油淬火-回火彈簧鋼絲，是二十世紀八十年代發展起來的新技術材料，在國外稱為itw induction heat oil tempered spring wire 。是通過線圈電磁感應鋼絲本身產生的渦流進行加熱，通常主要用於表面淬火。經正確設計，選擇電流頻率，合理的感應線圈及熱處理工藝，並實施plc控制，可使鋼絲整個截面及長度上得到均勻加熱，進行連續整體淬火和回火。
  4. The methods reported by g. s. young in 2000, are applied on sea surface sar images featured by three dimensional convective cells. then the following parameters are retrieved from sar images : the characteristic wave length of three dimensional convective cell, the mabl depth, the vertical convective scale velocity, the surface buoyancy flux, obukhov length and the stability correction factor for sar derived sea surface wind speed

    針對海洋大氣邊界層中三維對流渦旋sar圖像，用g . s . young在2000年發表的方法，反演三維對流渦旋的特徵長度、海洋大氣邊界層高度、以及海洋大氣邊界層垂直對流尺度速度、表面浮力通量、海面風速穩定性校正因子和obukhov長度。
  5. One cooling method that has gained increasing importance is endwall film - cooling, where coolant air is discharged though discrete holes in the inner and outer endwalls of a turbine blade passage. after leaving the holes, the coolant forms a protective layer between the hot mainstream gas and the surface that is to be protected

    目前廣泛採用的一種重要冷卻方法是渦輪葉柵端壁氣膜冷卻，該方法中冷空氣穿過渦輪葉片上內外端壁離散冷卻孔進行交換，且冷空氣流經冷卻孔后在主流熱空氣與被保護表面之間形成保護層。
  6. The result shows the volume transport in the four sections have the maximum in summer and the minimum in winter, especially in the two sections of 140 band 170 e. the eddy structure in both sides of the kuroshio extension is another distinct character

    結果表明:穿過這四個斷面的流量均呈現夏大冬小的季節變化趨勢，其中140 「 e和170 「 e兩個斷面的季節變化比較明顯。黑潮延續體另一顯著特徵是主軸南北兩側的多渦結構。
  7. The transient cfd simulation including the spiral case, stay vane, guide vane, runner vane and draft tube at different operation points is studied fitly, then the result of the pressure distribution on runner blade is provided for the runner transient structural simulation by fluid - structure interaction ( fsi ) method

    文中首先對高水頭小負荷的渦帶工況下混流式水輪機內流場進行非定常cfd計算，得到渦帶工況下葉片表面不同時刻的水壓力載荷，並利用流固耦合方法對轉輪進行結構場瞬態特性計算，分析轉輪葉片的動應力特性。
  8. Numerical simulation of hardened - depth on eddy signal

    渦流場量評價材料表面硬化層深度的數值模擬
  9. In addition to normal ndt methods, some advanced techniques such as x - ray real - time imaging and eddy current inspection are also introduced

    採用的方法除常規的無損檢測方法外，還包括x射線實時成像檢測和電磁渦流表面裂紋檢測等方法。
  10. 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 。
  11. In order to predict hydrodynamic characteristics a computational system is developed including determination of the pressure distribution on a wing section by use of the conformal mapping method and panel method respectively and of the flow in boundary layer according to the thin shear layer approximation ( tsl ) for navier - stokes equation approach. the wing sections of naca4412 and naca0012 are applied to test the computational system. the numerical inspection shows that the panel method with better precision and the momentum and the displacement thickness of boundary layer can be used to complete this calculation

    本文分別用守屋的保角變換法和基於源匯渦分佈的面元法，建立了計算槳葉表面壓力分佈的數學模型；應用納維-斯托克方程的薄層近似理論模式和有限差分數值方法，建立了計算機翼表面邊界層內部流動的數學模型；應用槳葉表面邊界層內部粘性流動和外部勢流流動在邊界上的匹配演算法，建立了槳葉表面二相流流動的計算方法和相應的計算機程序。
  12. ( 3 ) the most principal factors that influence the supersonic atomization process include the flow ratio of the gas - liquid metal ( gmr ) value, the flow of atomizing of gas and the range of the inverse vortex taper. the more of the value of three factors, the more advantage they are for the atomization and the more fine the powders are. ( 4 ) the produced powders are the best in efficient atomization efficiency, particle diameter, particle shape and dispersion when the solder alloy is zhl63a, atomizing medium is n2, the protrusion h = 6. 0mm, atomizing gas pressure p = 100mpa, over - heat temperature t = 167 ( t = 350 )

    研究結果表明： （ 1 ）超音速霧化器的氣體流場在導液管下端形成一個倒渦流錐，在二維空間上呈軸對稱的雙峰分佈，負壓形成於這個倒渦流錐內； （ 2 ）修正後的霧化氣體速度公式可以滿足超音速霧化的要求； （ 3 ）影響超音速霧化工藝最根本的因素有氣液質量流率比（ gmr ）的大小、霧化氣體流量和倒渦流錐范圍，三個因素的值越大，對形成細粉越有利； （ 4 ）在焊錫合金為zhl63a ，霧化介質微n _ 2 ，導液管突出高度取h = 6 . 0mm ，霧化氣體壓力取p = 1 . 0mpa ，合金過熱度取t = 167 （ t = 350 ）時，所制得的粉末在有效霧化率、顆粒球形度、粒度及其離散度三個方面綜合性能最好。
  13. Eddy current testing is a method suitable for testing changes occurred in the surface or subsurface of specimen. when using this method to test carburized components, the variable of eddy current signal is depend on the change of constituents " physical property in carburized layer. so it can be used to test carburized components nondestructively

    渦流檢測是一種適用於試件表面和近表面變化的檢測方法，利用渦流方法檢測滲碳件時，渦流檢測信號的變化主要取決于滲碳層組織的物理特性的變化，所以渦流檢測方法可以對金屬表面滲碳層深度進行檢測而不構成任何破壞。
  14. Abstract : a serial connection and complementary eddy current sensor hasbeen designed. the sensor can continually, quickly and accurately measure the thickness of metal fail, whether its surface is plainness or no

    文摘:設計了一種串聯順接互補型電渦流傳感器，能連續、快速、準確地檢測出金屬箔材的厚度，無論其表面是否平整。
  15. The complex vortex system structure and shock wave system structure inside this rotor is obtained. wall flow patterns on the blade surface and hub surface are found out. the complex vortex system structure, such as horseshoe vortex, passage vortex, corner vortex and trailing vortex, and the interaction with shock wave system are researched. especially, the character of the tip clearance flow inside the rotor passage is revealed, and the interaction between shock wave and tip clearance flow near blade tip and the evolution of tip clearance flow are considered

    給出了葉片表面及輪轂面上的壁面流型，分析並揭示了轉子葉道內的馬蹄渦、通道渦、角渦、尾渦等復雜渦系及其與激波的相互干涉；特別是，分析並揭示了轉子葉道內頂隙射流的特點，得到了頂隙附近激波與泄漏流動的干涉形態及泄漏流動的發展，並著重給出了其與激波的干涉形態。
  16. Based on the theory of mfl and a study on the signal characteristics ofac - mfl and ect : on one hand, it expouded the flaw identification model of “ slope ratio ” todetect the defects in panel, rob or pipeline ; on the other hand, the flaw - depth measurementmethod based on the characteristical frequency were used in ac - mfl. the application ofac - mfl was realized, and it showed the accordance of defect detection for these twotechniques

    從其檢測原理出發，在與上述渦流檢測信號特點進行比較的基礎上，一方面，利用「斜率比值」識別模型實現了對板材、管材、棒材等表面缺陷的檢測;另一方面，利用交流信號的信息實現了基於拐點頻率的深度測量方法在該技術中的應用。
  17. A flow induced vibration model based on grid - free surface vorticity method

    一種基於表面渦方法的流體誘導管束振動計算模型
  18. The simulations results show that the spoiler is available to make the fuel and the oxidizer coming from the former to stay in the cavity for a long time, to let the fuel and oxidizer mix and burn completely. since there is a high temperature zone forming by vortex in the middle of the motor, it required a restricted thermal protection. the plate with holes decreased the vortex function in the cavity, which could not promote the combustion efficiency, but to decrease temperature in the cavity and be benefit to thermal protection of the wall

    計算結果分析表明:擾流板可以使燃料和氧化劑在擾流腔內的滯留時間加長，促進燃料與氧化劑的摻混燃燒，提高燃燒效率，但由於渦流在發動機的中間部位形成了高溫燃燒區域，致使局部燃料和絕熱層燒蝕速率增大，加大了熱防護的難度;孔板結構減弱了擾流腔內迴流區的漩流作用，不能增加推進劑燃燒效率，但可以使擾流腔內的溫度降低，給壁面熱防護帶來好處。
  19. Especially, t - test shows that significance of the asia polar vortex, zonal circulation index, the most northern extension edge of subtropical high of northern west pacific and the warm pool of pacific ocean, are at 95 % （ 90 % ）

    特別地，亞洲極渦、緯向環流指數、西太平洋副熱帶高壓北界位置及太平洋暖池的海表面溫度等因子均通過了95 % （ 90 % ）信度水平檢驗。
  20. The relationship between the non - dimensional drag coefficient of sma plate face and time is presented, and the pressure distribution on and around the sma plate surface as well as the karman vortex configuration in the wake at a certain time are given

    給出了形狀記憶合金薄板表面的流體無量綱阻力系數隨時間的變化關系，同時給出了某一時刻薄板表面及其周邊的壓力分佈和薄板尾跡中的卡門渦街形態。
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