湍流區域 的英文怎麼說

中文拼音 [liúqūyù]
湍流區域 英文
turbulent region
  • 湍 : [書面語]Ⅰ形容詞（湍急） rapid; rushing; torrential; swiftⅡ名詞（急流的水） rapids; rushing waters
  • 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...
  • 區 : 區名詞（姓氏） a surname
  • 域 : 名詞（在一定疆界內的地方; 疆域） land within certain boundaries; territory; region
  • 湍流 : 1 （急流） swift current; rushing waters; torrent; rapids 2 [物理學] turbulent flow; turbulence; ...
  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. A 3 - d viscosity turbulence model is used to analyze the unsteady around flow field of the thrust - vectoring engine of the jet vane, and results of the area including vane base, vane flake and motor shell are presented

    摘要以推力矢量發動機的燃氣舵為研究對象，採用三維、粘性、湍流流動模型和數值分析的接觸網格技術，在定常流動計算的基礎上，對包含舵基、舵片和發動機殼體的區域進行詳細數值分析。
  3. Results show when velocity of flow remains unchanged in the onflow area and openness of the tube is changed, then resistance coefficient changes obviously

    實驗結果表明：在湍流區域內流速（量）不變時，改變管件開度，阻力系數變化較顯著；改變流量，管件開度不變時，變化不大。
  4. The non - local turbulence parameterization, i. e., transilient theory was used in the host model mm4 to simulate the turbulent activities of the atmosphere

    在中尺度區域模式mm4的基礎上對其中的湍流參數化方法作了改進，嘗試用非局地閉合方法代替局地
  5. The lower boundary of the region above which molecular diffusion dominates is 120 km altitude and is known as the turbopause.

    分子擴散佔主導地位的區域下界約在120公里處稱為湍流層頂。
  6. Because of the large velocities ordinarily involved, there is a region of turbulent flow behind the ball, as shown.

    一般由於高速，在球的後面有湍流區域，如圖中所示。
  7. How often is cat encountered near hong kong

    在香港鄰近區域出現晴空湍流有多少？
  8. Topics discussed included the intensive windshear and turbulence reporting exercises in 2000, experts review of windshear and turbulence warning service, delivery of meteorological information on broadband circuits, weather services under the communication navigation surveillance air traffic management cns atm systems and automated meteorological data relay amdar observation programme, sea breeze induced windshear and world area forecast system wafs transition matters

    討論事項包括二零零零年風切變及湍流報告徵集活動專家對風切變及湍流警報服務的檢討利用寬頻網路傳送氣象資料通訊導航巡測空中交通管理系統下提供的氣象服務及飛機氣象數據自動下傳觀察計劃海風引起的風切變，以及世界航空區域預報系統過渡事宜。
  9. Topics discussed included the intensive windshear and turbulence reporting exercises in 2000, experts review of windshear and turbulence warning service, delivery of meteorological information on broadband circuits, weather services under the communication navigation surveillance air traffic management ( cnsatm ) systems and automated meteorological data relay ( amdar ) observation programme, sea breeze induced windshear and world area forecast system ( wafs ) transition matters

    討論事項包括二零零零年風切變及湍流報告徵集活動、專家對風切變及湍流警報服務的檢討、利用寬頻網路傳送氣象資料、通訊、導航、巡測空中交通管理系統下提供的氣象服務及飛機氣象數據自動下傳觀察計劃、海風引起的風切變，以及世界航空區域預報系統過渡事宜。
  10. Relaxation factors are adopted. a program is produced to simulate swirling air flow in a horizontal straight pipe and compare with experiment data. the simulation prove that the modified k - model can predict the core, annular and wall regions near entrance and axial velocity far from entrance, but it ca n ' t predict tangential velocity well in weak swirling area far from entrance

    編程計算水平圓管內螺旋氣流的流動參數並與實驗數據對比，結果表明修正-湍流模型在近入口處基本上能預測出中心區、環形區和近壁區的流動特性，在遠離入口弱旋流區域對軸向速度的預測符合實際情況，但是出現對周向速度修正過大的現象。
  11. These roof structures are generally in high turbulent regions, then wind loads become important to these structures. however, wind - induced response for most of roof structures has not been considered in the present load code of building structures because of the complexity of the structures and wind loads. so the investigation for characteristics of wind load of large span roofing becomes a critical subject

    這類結構的屋蓋或看臺挑蓬通常具有質量輕、柔性大、阻尼小、自振頻率低等特點，且往往比較低矮，處于大氣邊界層中風速變化大、湍流度高的近地區域，對風荷載十分敏感，風荷載往往是此類結構設計的主要控制荷載。
  12. The method to determine von karman ' s constant with the integral equations was reviewed. the variation of von karman ' s constant in the overlap region was also analysed. a new conclusion was driven, that von karman ' s constant is a function of reynolds number or karman number in the overlap region

    介紹了利用積分方程確定圓管湍流中馮?卡門常數的方法，並詳細分析了重疊區域中馮?卡門常數的變化情況，提出了馮?卡門常數在重疊區域中是雷諾數或卡門數函數的新結論。
  13. The black thick lines with wind barbs indicate the location of jet streams and their maximum speeds, while the dash lines outline possible cat areas

    圖中有風羽的黑色粗線顯示高空急流的位置及最大風速，而虛線則描繪出有可能出現晴空湍流的區域。
  14. The resonant three - wave model and laminar - turbulent velocity profile composed are used as a model of coherent structures in. turbulent flow. the forming and variation of turbulent coherent structures in the channel are simulated by the compact differential method with high accuracy and resolution derived in this paper

    以共振三波和層-湍復合速度剖面作為湍流相干結構模型，採用文中所導出的高精度、高解析度的緊致差分方法，模擬了槽道流動在近壁區域湍流相干結構的形成和變化。
  15. It also issues significant weather information on thunderstorms, tropical cyclones, turbulence, icing, and other hazardous weather which may affect aviation safety in the area within which hong kong is responsible for the provision of air traffic services

    此外，氣象所亦發出有關雷暴、熱帶氣旋、湍流、結冰及其他可能對香港航空交通服務區域內的飛行安全構成影響的重要天氣資料。
  16. The two - dimensional body - fitted grid was created by method of partial differential equation and zonal method. the k - equation subgrid - scale model was used to simulate the turbulent viscosity, the chemical reaction rate was determined by the subgrid ebu combustion model and the heat flux model was employed for the heat flux

    運用偏微分方程和區域法生成二維貼體網格，湍流模型採用k方程亞網格尺度模型，燃燒模型採用亞網格ebu燃燒模型，採用熱通量輻射模型估算輻射通量。
  17. The fourth - order explicit upwind - biased compact difference schemes are used in the spatial discretization of the nonlinear convection terms. these difference schemes can be used in all computational region including the boundary neighborhood, and can overcome the difficulty not adapting simultaneously in the boundary neighborhood for general three - dimensional fourth - order central difference schemes, and improve computational stability a nd resolution. the compact difference equations with high accuracy and resolution for solving the incompressible n - s equations and perturbation equations are composed of these compact difference schemes, and provides an effective numerical method for the investigations of the turbulent spots and coherent structures

    文中發展了四階時間分裂法用於navier - stokes方程及其擾動方程的時間離散；對分裂得出的關于壓力的poisson方程和關于速度的helmholtz方程，建立三維耦合四階緊致迎風差分格式；這些格式適用於包括鄰近邊界點在內的計算區域，克服了三維各自用四階中心差分格式離散不適用於邊界鄰域的困難，並提高了穩定性和解析度，用這些格式分別組成了數值求解navier - stokes方程及其擾動方程的高精度、高解析度的緊致差分方程組，為湍斑及湍流相干結構的研究提供了有效的數值方法。
  18. The numerical results under different methods, especially the simulation of recirculation region and reattachment length were carefully checked and compared. it indicated that the " variable c ? " model could effectively increase the dissipation near the wall and, more over improve the simulation of the reattachment length to close to the experimental results. 4

    比較不同修正方法下的圓管湍流計算結果，尤其是迴流區域和再附著長度的模擬結果表明：變模型常數的-模型有效地的增加了近壁區域的湍能耗散率，使再附著長度的計算結果更接近於實驗結果。
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