等壓渦度 的英文怎麼說

中文拼音 [děngyāguōdù]
等壓渦度 英文
isobaric vorticity
  • 等 : Ⅰ量詞1 （等級） class; grade; rank 2 （種; 類） kind; sort; type Ⅱ形容詞（程度或數量上相同） equa...
  • 壓 : 壓構詞成分。
  • 渦 : 渦名詞1. （漩渦） eddy; whirlpool; vortex 2. （酒窩） dimple
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  1. The basic parameters, such as temperature, pressure, turbulence kinetic energy and the turbulent kinetic energy dissipation rate, are also analyzed

    繪制了壓力和溫度曲線，以及壓力、溫度、渦流動能、渦流動能擴散率等值線圖。
  2. 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

    進而對方腔流的速度場和壓力場進行了計算，繪制了不同雷諾數下的流線圖及壓力等高線圖，得到的迴流渦的位置和流函數的值和現有的數據十分吻合，表明本文不可壓格子模型是可靠的。
  3. To the large - scale atmosphere, we separate the terms of the horizontal vorticity converting into the vertical vorticity, which considered as the baroclinic terms, from the terms that not including horizontal vorticity by the rules of the p coordinate transforming to the z coordinate in the traditional vorticity equation, and carry out the scale analysis, and then conclude that the baroclinic terms are able to reach the same magnitude grade as the partial derivative of the vertical vorticity to time when it takes place the large scale precipitation in the summer monsoon period in china. by analyzing the game reanalysis data from april to august in 1998 in the region of chinese continent, we found that the baroclinic terms is important to the large - scale cyclone developing above the 600hpa, and the magnitude changing of the baroclinic terms is nearly in - phase as the monsoon movement, so which imply exactly that the magnitude changing of the baroclinic terms is the one of the natural characters of the summer monsoon evolution and equivalent to the movement rule of the subtropical high of the western pacific

    在p坐標垂直渦度方程中，利用p坐標向z坐標轉換的公式將水平渦度向垂直渦度轉化的所有項分離出來，這些項具有明顯的斜壓特徵，對其進行尺度分析后，得出在可以忽略潛熱釋放對渦度影響的對流層中、高層，此轉化項是大尺度斜壓渦度發展的重要項。通過對1998年48月的game再分析資料進行實際計算也發現，轉化項在東亞夏季風上升支的600hpa及以上層次對垂直渦度的局地變化貢獻很大，不能忽略。同時發現水平渦度向垂直渦度的轉化在南海季風爆發時和江淮梅雨入梅及發展過程中均有指示性意義，在南海季風爆發以後，在中國東南部地區，轉化項的大小與夏季風的活躍和中斷等活動有著幾乎一致的變化規律，這從側面也指出了，此轉化項的變化是夏季風演變所具有的本質特徵，並且它反映出了西太平洋副高在中國大陸的活動情況。
  4. The distributions of velocity vector, vorticity. turbulent kinetic energy and some other detailed flow information in the field are obtained. the influence of electric field on the flow field is discussed and gives a deep insight on it

    3 、首次採用piv技術對荷電噴霧射流流場進行了測量，獲得了整個流場的瞬時速度、湍能、渦量等信息分布圖，研究了流場特性隨充電電壓的變化情況。
  5. The main relative systems of heavy - hard rainfall in northeast plateau are western pacific subtropical high, south asia high, low latitude systems, upper level jet ( ulj ), low level greater wind speed axes, westerly trough and plateau trough, low level vortex, cold frontal, occluded front in qinghai lake, mesoscale low pressure, heat low - pressure in qinghai, shear line and convergence line, mesoscale cloud cluster, etc. the west subsidiary model of south asia high is the main circulation type of heavy - hard rainfall in this area

    3 、西太平洋副高、南亞高壓、低緯系統、高空急流、低空大風速軸；西風槽和高原槽、低渦、冷鋒、青海湖錮囚鋒以及中尺度低壓、青海熱低壓、切變線與輻合線、中尺度雲團等系統是高原東北部地區大到暴雨的主要相關系統。 100hpa上的南亞高壓中心強度加強，位置東西擺動預示高原地區將有降水產生，中心強度減弱，降水過程結束。南亞高壓西部副型是高原東北部地區大到暴雨的主要流型。
  6. Areas of application : used for temperature monitoring on generators and high - power electric motors, electric systems, turbines, windings, etc

    應用領域：發電機、高壓電動機、電力系統、渦輪機、線圈等的溫度監測。
  7. 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

    通過對水壓閥模型的cfd穩態和瞬態解析，可以得到水壓閥內流場的速度分佈、壓力分佈及能量分佈，據此定性分析流道結構（速度、壓力、流動的分離與再附壁，旋渦的產生與消失等）與能量損失、負壓分佈等的關系，從而為設計出高效率、低能耗、低噪聲的水壓閥提供理論依據。
  8. The precondition of establishing mathematics model of torpedo turbine system in design condition is to fulfill the external conditions ( such as torpedo sailing speed and depth etc. ) and inner conditions ( such as turbine power and efficiency etc. ). after establishing mathematics model of torpedo turbine system in design condition, we compiled simulation program to compute all kinds of inner parameters of turbine engine include engine type, principal layout of turbine, inner structure of turbine and state parameters of gases

    首先分析設計工況時渦輪機動力系統，在滿足魚雷動力系統的各項外部條件（如魚雷航深、航速等）和內部條件（如渦輪機功率、效率，燃燒室壓力、溫度，轉子機械強度等）的前提下，建立起設計工況渦輪發動機的數學模型，編程計算並確定渦輪機內部機械結構和燃氣熱力學狀態各參數。
  9. Turpa - a series of highly refined base oils which possess wccellent demulsibility, anti - foad and air release properties. containing antioxidant and anti - rust additives to impart high resistance to oxidation ant high temperature and to acid formation. turpa is specially recommended for steam, gas and water turbine, turpa fufills the most severe operating conditions imposed by modern heavy duty gas turbine as other general applications, such as vacuum pump, air compressor and hydraulic system, where the qualities of turbine oil are required

    德霸-高度精煉礦物油，具備了優良的抗乳化性、抗泡性及空氣釋放性，配合抗氧化劑及防銹劑，在高溫時不易氧化及產生酸性，推薦應用於蒸汽、烯氣及水輪機，德霸能滿足新式燃氣渦輪機的嚴苛操作環境，也能應用於需要一般透平機油特性的操作，如真空泵、空氣壓縮機及液壓系統等。
  10. Mesoscale low vortex ' s " wandering " at eastern anhui province and stronger development at the stiff moist isentropic surfaces are very important to this heavy rainfall process

    中尺度低渦在安徽東部移動過程中的「打轉」和在等熵面上沿梯度密集等壓線的運動和強烈發展，對這次強降水過程具有重要作用。
  11. 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

    智能渦街流量計系統由渦街傳感器、溫度傳感器、壓力傳感器、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。
  12. The surface panel method has been applied to predict the hydrodynamic performance of highly skewed propeller. the surface of propeller and its trailing vortex are discreted by a number of small hyperboloidal quadrilateral panels with constant source and doublet distribution. for highly skewed propeller, the conventional method generating grid oriented along constant radii will result in a high aspect ratio and a high skewness and a twist panel near the propeller tip on blade surface, which result easily in incorrect calculation results of velovity on blade surface, even in iteration divergence and calculation failure. a “ non - conventional grid ” is developed to acoid these problems. this grid can effectively solve the problem of the calculation and convergence for highly skewed propeller. the non - linear kutta condition of equal pressure on upper and lower at the trailing edge is executed by the iterative procedure. by sample calculating, the obtained results are satisfied the experimental data

    採用面元法預報大側斜螺旋槳水動力性能，螺旋槳表面及尾渦面離散為四邊形雙曲面元，每個面元上布置等強度源匯和偶極子分佈.對于大側斜螺旋槳而言，槳葉表面採用常規的等半徑網格劃分方法在近葉梢處將導致大展弦比、大側斜和扭曲面元，這容易使槳葉表面速度的計算結果不正確，甚至會導致迭代過程發散及計算失敗.文中建立了一種「非常規網格」劃分方法，能有效地解決大側斜螺旋槳的計算和收斂問題.槳葉隨邊處通過迭代實現非線性等壓庫塔條件
  13. 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。
  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. Starting from a two - layer nonlinear quasi - geostrophic baroclinic vorticity equation containing ekman friction, a new generalized energy is proposed to act as lyapunov function and thus a new criterion of nonlinear baroclinic subcritical instability containing two inequalities is obtained

    從含ekman摩擦的二層非線性準地轉斜壓渦度方程出發，提出了一種新的廣義能量作為lyapunov函數，導出了非線性斜壓亞臨界穩定性判據。該判據含有兩個不等式： （ 1 ）
  16. In terms of the ncep reanalysis data, rainfall and temperature data from sixteen stations of china and the tbb data provided by the meteorological research institute of japan, the main features and basic rules of westward extension and withdrawal processes of the northwest pacific subtropical high ( sth ) and its effect on the weather of the east china are investigated in this paper, by composite analysis, theoretical analysis and dynamical diagnosis. based on the relation between the heating and sth, the effects of the distribution of apparent heat source beside the sth on its maintenance and westward extension are also discussed, using the apparent heating to quantitative calculate the complete vorticity equation ( cve ). major results are as follows : ( 1 ) the variation of 500hpa vorticity in the key area ( 115 - 125 e, 20 - 30 n ) is used to indicate the westward extension process of sth

    本文利用ncep再分析資料和國家氣象局提供的160站降水和溫度資料以及日本氣象廳提供的t _ （ bb ）資料，通過合成分析、理論分析、動力診斷等方法，詳細分析了六月份西太平洋副熱帶高壓的西伸過程特徵，以及西太平洋副熱帶高壓西進東退的規律及其對我國東部天氣的影響，並圍繞加熱場與西太平洋副熱帶高壓的相互關系這一主題，重點討論了大氣視熱源分佈對西太平洋副高維持與西伸的影響，並運用全型垂直渦度方程對副高形態變異的可能機理進行了研究，得到了以下主要結論： （ 1 ）本文選取了關鍵區（ 115 ? 125 e ， 20 ? 30 n ）內的渦度值來表示副高的西伸過程。
  17. 2 an f - plane quasi - geostrophic barotropic vorticity equation model of high resolution is designed in this paper in order to investigate the characters of vorticity propagation and the effect of nonlinearity on the propagation within a typhoon circulation, wherein two mesoscale vortices coexist at different radial positions

    2設計了一個高解析度的f平面的準地轉正壓渦度方程模式，用以研究兩個徑向距離不等的中尺度渦旋共存條件下，臺風環流內渦量傳播的特徵，以及非線性在此傳播過程中的作用。
  18. A " saddle " shape appears in the curve of relationship between smd ( sauter mean diameter ) and charging voltage, the droplets " size distribution fluctuates with the change of charging voltage. the influence of electric field on flow field is apparent. the distribution of velocity and turbulent energy, structure and size of vortex appear different changes with the increase of voltage of charging

    索太爾粒徑隨電壓的變化曲線中出現「馬鞍」現象，粒徑的分佈情況隨電壓的升高出現波動性變化；電場對流場的作用明顯，速度與湍能的分佈及渦的結構等流場特性隨電場的改變均有不同規律的變化。
  19. Based on the exhaust heat data of the iurbine ( 6160a - 12 ) and the micro gas turbine produced in japan, parameters of test - bed such as deferent thermal flow temperature and pressure are defined by the calculation of design parameter in method of combined theory and experience data

    以柴油機（ 6160a - 12 ）和日本的微型燃氣渦輪機尾氣參數為設計基礎，通過理論和經驗數據相結合的方法進行設計參數計算，確定了模擬實驗臺熱流量、出口溫度及壓力等參數。
  20. Eddy current nondestructive testing ( ecndt ) is widely used to detect the thinness and defects of the sample, because of its characteristics of non - contact, high sensitivity and ease of detection. the principle of ecndt is that : when a probe coil with the ac exciting source is put near a sample, eddy current will be produced in the sample which will conversely affect the impedance of the coil according to the farad theorem. any un - uniformity in the sample will change the impedance of the coil and the output voltage

    渦流無損檢測技術具有靈敏度高、檢測速度快、非接觸等特點廣泛應用於厚度檢測和缺陷探傷，它的原理是當載有交變電流的檢測線圈靠近金屬導體時在導體中產生渦流，該渦流又影響原磁場，使得線圈的阻抗和感應電壓發生變化，通過分析阻抗或感應電壓的變化來獲得被測導體的信息。
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