渦流壓力 的英文怎麼說

中文拼音 [guōliú]
渦流壓力 英文
eddy stress
  • : 渦名詞1. (漩渦) eddy; whirlpool; vortex 2. (酒窩) dimple
  • : 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...
  • : 壓構詞成分。
  • : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
  1. Orifice's pressure losses are attributed to entrainment and eddy formation.

    孔板的被認為是由卷吸和造成的。
  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、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:撞針型高小孔徑離心式噴嘴具有較大的空氣與霧化角,噴出的液體速高、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和表面張,從而優化加濕效果。
  3. We can use the mm5 model in definite time, definite area weather forecasting. we conclude that : : the moving route of this necw in its developing progress was direct - south along latitude, the cold air is rough, and just this made the rough vertical velocity ; the necw southern moving and conflicting with the west pacification sub - tropical high makes rough jet steam. the plenty south - west warm and wet air made by the jet stream gave the rainstorm demanded vapor ;. the rough vertical velocity by jet stream is a main reason in this rainstorm ; the mm5 model uses four - direction analysis data as its input, this avoids some errors occurred in observe and transfer, thus made the result more useful

    綜合分析認為: ( 1 ) 、這次冷在其發生發展過程中,其移動路徑是沿經圈直線南,攜帶的冷空氣勢較強,形成槽后較強的垂直運動; ( 2 ) 、西太平洋副熱帶高偏北位置與東北冷形成的急軸,把源源不斷的西南暖濕氣輸送到遼西地區,也就是急軸的左前方位置,為這次暴雨的產生提供了充足的水汽來源; ( 3 ) 、低空急不但為暴雨輸送水汽,其造成的較強的垂直環也是產生強降水的一個主要原因; ( 4 ) 、 mm5模式以四維同化資料作為初始場,最大限度地避免了觀測誤差可能造成的積分不穩定,提高了模擬結果的參考價值。
  4. Vortex tube utilizes certain pressure gas as working medium producing the effect of separating, which makes the gas separating into cold and hot parts. the cold gas among them can be used refrigeration

    管製冷是利用一定氣體作為工質經過管產生分離效應,使氣分離成冷熱兩個部分,其中的冷氣可用來製冷。
  5. The basic parameters, such as temperature, pressure, turbulence kinetic energy and the turbulent kinetic energy dissipation rate, are also analyzed

    繪制了和溫度曲線,以及、溫度、動能、動能擴散率等值線圖。
  6. 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發動機高輪內場的數值模擬,研究了干涉的周期性的問題,以及輪級內常見的非定常現象:激波、尾跡、脫落、根腳、通道、漏。導向器尾緣會出現兩道激波,在吸面的激波可稱為「運動」激波,面的激波可稱為「定常」激波。
  7. Based on the green ' s formula and the assumption of the propeller blade ' s thin sections, a lifting - surface method of propellers with the vortex lattice and equal source panel distributions on the mean camber surface has been introduced for the prediction of steady propeller ' s hydrodynamics in this paper. an approximate kurta condition was applied

    基於creen公式和薄翼理論假設導出的升面方法,採用在螺旋槳拱弧面上分佈離散、源布置方法預報均勻場中的螺旋槳的定常性能,螺旋槳尾面上連續性條件採用近似的kutta條件處理。
  8. In light of the limitation of fast fourier transform ( fft ) for the method of traditional spectrum analysis to analyze the unsteady signal, wavelet and wavelet analysis are made for the typical unsteady process signal of starting up and shut down with the good characteristic of simultaneous localization in both the time and the frequency domains based on the field test on the vibration of two - row placed units in lijiaxia hydropower station, in which the signal is decomposed into different frequency band, and then the weak signal is caught and the dominant frequency is picked up for the analysis of the vibration source

    摘要基於李家峽水電站雙排機組振動的現場試驗研究,並且針對傳統頻譜分析方法傅立葉變換( fft )對于非平穩信號已不從心這一缺陷,利用小波分析方法在時域和頻域上同時具有良好的局部化性質,通過對開停機這一典型非平穩過程信號進行小波及小波包分析,將其分解到不同頻帶內,獲取微弱信息和提取優勢頻率,並對其作振源分析,得出開停機初始時刻因水不穩均出現強烈的振動現象,且低頻段信號能量最大,開停機過程水脈動和尾水帶擺動是引起定子基礎振動的主要原因。
  9. At some situation, this secondary flow causes the upper plate to have a suck - down force phenomenon

    而橫向會造成上沖噴泉、壁與停滯線等場結構的改變,進而影響上平板之分佈。
  10. And then, the cavity flow is simulated, and the streamline and pressure contour at different reynolds number are plotted, the stream function and location of vortex centers are agree well with the previous results, which indicate the incompressible lattice bgk model is reliable

    進而對方腔的速度場和場進行了計算,繪制了不同雷諾數下的線圖及等高線圖,得到的迴的位置和函數的值和現有的數據十分吻合,表明本文不可格子模型是可靠的。
  11. 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帶工況下混式水輪機內場進行非定常cfd計算,得到帶工況下葉片表面不同時刻的水載荷,並利用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特性。
  12. The eddy current ring of pressure pipeline that is detected by spot probe is studied firstly in theory

    摘要首先從理論上分析了放置式探頭探測管道時的環模型,然後應用此模型推導出了檢測時的特徵頻率計算公式。
  13. A transparent model is used to make the deflection jet board grounded on the inhere enlarged dimensions. the finished experiments are conducted to catch the flow rate directions and the situation of cavitation using a high - speed video cameras. in this paper, the finite element analysis and visualiation research of servo valve prestage jet flow field are carried out, which establish the theoretical foundation for mathematical model of servo valve prestage and the whole mathematical model of hydraulic servo valve

    在對射前置級驅動的伺服閥射場數值模擬的基礎上,用有機玻璃在偏導射板原始尺寸的基礎上進行了擴大,製作了透明的偏導射板,運用高速攝像機、液泵站等組成了可視化實驗系統,對射場的速方向、、氣穴等現象進行了多方位的觀測,並通過對接收管接收的測試,對場分析結果進行了驗證。
  14. After simulating the model of water hydraulic valves, the velocity distribution, pressure distribution, energy distribution can be obtained and relations between the valve channel and the energy loss, the negative pressure distribution can be analyzed, which offers the theory foundation for designing water hydraulic valves with the high efficiency, low energy loss and low noise

    通過對水閥模型的cfd穩態和瞬態解析,可以得到水閥內場的速度分佈、分佈及能量分佈,據此定性分析道結構(速度、動的分離與再附壁,旋的產生與消失等)與能量損失、負分佈等的關系,從而為設計出高效率、低能耗、低噪聲的水閥提供理論依據。
  15. Abstract : the flow field mesurement and visualization of the reduced sp ace shuttle model are introduced briefly. that includes the vortex field mesureme nt 、 body pressure distribution mesurement and oil flow visualization. the testing mach nos and angles of attack are 0. 4, 0. 6, 0. 8, 1. 5, = 0 ?

    文摘:敘述航天飛機簡化模型場測量與觀察,進行了旋場測量,機身分佈測量和組合體的油觀察。
  16. There are five parameters need to be measured. there are five channels for input : the displacement of casting - roller, the rotate speed of casting - roller, the pressure of casting and rolling, the casting temperature and the water - speed of cooling water. they are measured by raster, photoelectric coder, strain pressure sensor, thermocouple and turboflowmeter

    系統需要進行監測的參數有五個,即有五路輸入信號:鑄輥位移、鑄輥轉速、鑄軋、澆鑄溫度、冷卻水速,分別採用光柵、光電編碼器、應變式傳感器、熱電偶和量計作為檢測元件。
  17. The shearing layer is carried by the jet and the eddy is formed because of the instability and selective amplification of shearing layer which will propagate to the downstream. as the eddy impacts the impinging wall, a wave of pressure disturbance with certain frequency is induced. this wave then propagates to the upstream with high speed, and results in the overlap and amplification of the waves when the frequencies of them are close with each other

    當前噴嘴束中的不穩定擾動波在穿過腔內的剪切層時,剪切層對其有選擇放大作用,形成環結構,剪切動中環與碰撞壁撞擊,在碰撞區域產生擾動波並向上游反射,在上游剪切層分離處誘發新的擾動的產生,當新擾動與原擾動匹配時,射上游就被不斷地受到周期性激勵,腔內就產生體自激振蕩並在後噴嘴出口形成脈沖射
  18. 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分佈的面元法,建立了計算槳葉表面分佈的數學模型;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動的數學模型;應用槳葉表面邊界層內部粘性動和外部勢動在邊界上的匹配演算法,建立了槳葉表面二相動的計算方法和相應的計算機程序。
  19. The intelligence vortex flowmeter system is consisted of vortex sensor, temperature sensor, pressure sensor, lcd module and master controller, etc. the master controller uses a single - chip computer to collect, analyze, compute and compensate the signals of all sensors, and gets the needed data, then displays all data via the lcd

    智能量計系統由街傳感器、溫度傳感器、傳感器、液晶顯示模塊、主控制器等幾個部分組成。主控制器使用單片機對各個傳感器的信號進行採集、分析、計算,並進行補償,得到所需數據,再將各種數據送到液晶顯示器顯示。
  20. ( 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場在導液管下端形成一個倒錐,在二維空間上呈軸對稱的雙峰分佈,負形成於這個倒錐內; ( 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率比( gmr )的大小、霧化氣體量和倒錐范圍,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。
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