明渠流動 的英文怎麼說

中文拼音 [míngqúliúdòng]
明渠流動 英文
channel flow
  • 明 : Ⅰ形容詞1 （明亮） bright; brilliant; light 2 （明白;清楚） clear; distinct 3 （公開;顯露在外;不隱...
  • 渠 : Ⅰ名詞1 （人工開鑿的水道） canal; ditch; channel 2 [書面語] （車輪外圈）outer wheel3 [書面語]（盾...
  • 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...
  • 明渠 : open canal; open channel; open trench; open-cut drain明渠排水 drainage by open canal
  • 流動 : 1. （液體或氣體移動） flow; run; circulate 2. （經常變換位置） going from place to place; on the move; mobile
  1. A test analysis of open canal bottom coefficient of roughness anticlimax on turbulent velocity of flow and intensity of turbulence influence

    明渠渠底糙率突減對紊流流速及紊動強度影響的試驗分析
  2. In recent years, plentiful and substantial fruits achieved by the lb method in simulations of hydraulics, multiphase flows, flows in porous media and heat transfer as well as magnetohydrodynamics, have revealed a broad perspective of application of this method, it will become a powerful competitor to the conventional approaches. in order to absorb the recent achievement in theory and application of the lb method, explore new ways in hydraulic computation to promote the development of practice, some work is car ried out in this thesis, as following : advances in the theory research and application, deductive process of the d2q9 model and some other commonly used models of the lb method are summarized. based on the hydrodynamic and general boundary conditions, a new joint boundary condition is presented, it integrates advantage of the two conditions above and obtains very good results in dealing with all kinds of boundaries of flow fields

    為了消化和吸收近年來lb方法在理論和應用方面的新成果，探索在水力計算方面的新途徑以促進lb方法實用化的發展，本文進行了下列研究工作：綜述了lb方法在理論研究和實際應用方面的新進展，以及d2q9模型的推導過程和其他一些常用的模型；在水動力邊界條件和通用邊界條件的基礎上提出了一種新的聯合邊界條件方法，它綜合了上述兩種邊界條件的優點，在流場的各種邊界處理中取得了非常好的效果，經過模塊化的處理以後這種邊界條件具有更好的實用性；針對均勻網格的lb方法計算效率較低的不足，提出了雙重網格的latticeboltzmann方法，通過二維poiseulle流動、后臺階流動和渠道方槽流動三個算例的模擬，證明這種方法能夠明顯地提高流場模擬的計算效率；此外，根據復雜區域流場的特徵提出了latticeboltzmann方法的分塊-耦合演算法，利用lb方法的計算特性實現塊與塊之間的數據交換，充分利用計算資源提高計算效率，通過對「 t 」型、 「十」型和「 x 」型分岔管道流場的模擬，展示了這種演算法的特徵和優點，以及它所具有的應用前景。
  3. Numerical simulation of compound open channel flow

    復式明渠水流運動的數值模擬
  4. " the chinese have a lot of liquidity and nowhere to go, " said benjamin wey, president of new york global group, an investment and consulting firm that specializes in china

    「目前中國的流動性很充足並且沒有好的投資渠道， 」本傑明.衛，紐約國際集團，一家專注于中國的華爾街投資銀行總裁評論到。
  5. Various sewerage works were outlined in the east kowloon and north south kowloon sewerage master plans drawn up for the area, and these began to be carried out in the 1990s. they included construction of a number of dry weather flow interceptors along the nullah to intercept polluted storm flow, along with the replacement of worn - out and often overloaded sewerage facilities

    東九和九北部及南部污水收集整體計劃為該區規劃了多項污水工程，這些工程在九十年代陸續動工，當中包括沿啟德明渠建造旱季截流設備以截止污染雨水，以及更換負荷過重又殘舊的污水設施。
  6. Open - channel, fabricated - metal slide gates and open - channel, fabricated - metal weir gates

    明渠預制金屬滑動閘門和明渠預制金屬溢流堰閘門
  7. Velocity profile of open - channel flows in the transitional roughness region on mobile beds

    過渡區動床明渠流的流速分佈
  8. The turbulent flow in open channel is tested with laser - doppler anemometer, in which the longitudinal time average velocity and fluctuating velocity of turbulent flow in open channel under the conditions of the sudden changes of roughnesses at different water depths are measured

    摘要通過激光測速儀，對壁面糙率突變時的明渠紊流進行試驗，測量了糙率突變不同水深情況下明渠紊流的縱向時均流速和脈動流速。
  9. A variety of mathematical models based on continuous equation and the momentum equation and many solutions partial differential equation value computational method in the open canal turbulent flow solution, still could widely apply and yield the satisfactory result

    但是，非穩態的navier - stokes方程對于明渠水流的瞬時運動還是適用的，以連續方程和動量方程為基礎，建立的各種數學模型和許多求解偏微分方程的數值計算方法在明渠紊流的求解中仍能廣泛應用。
  10. In the turbulent flow, the fluid ’ s physical parameters has the stochastic change along with the time and the space, it is very difficult to carries on its rate process ’ s precise computation and the simulation with mathematics method, but unstable condition navier - stokes equation regarding open canal current of water transient motion suitable

    閘后水流經過加糙的海漫段時，其水流狀態屬明渠紊流。流體中的各種物理參數，都隨時間與空間發生隨機的變化，很難用數學的方法對其運動過程進行精確計算和模擬。
  11. And the relation between these velocity was analyzed at last. this is the conclusion : ( 1 ) the distribution of the velocity and concentration are get in the open channel flow and as the sewage flow is gravity flow, the equations is fit for this too. ( 2 ) generally speaking, the self - cleaning velocity should be the starting velocity, and it could fit for the self - cleaning target in limited sense theoretically, but when facing some higher requirement, it is not large enough

    最後結合污水流動的最小設計流速與顆粒起動流速、臨界不淤流速的關系進行了分析，結論如下: （ 1 ）文中所得出的速度分佈與濃度分佈是在明渠兩相流動情況下推得的，由於污水管道流動多為重力流，是明渠流中的一種，所以文中的分析在認識污水流動特性方面具有一定的參考價值。
  12. The open - channel flow - measuring system described in this paper is used for the measurement of the waste discharge in the city or from the factories

    本文所描述的明渠流量測量系統是用於對屬于明渠流動范疇的城市和工礦企業的污水排放進行流量計量的。
  13. Now, most of the design of the sewage is according to gravity flow and we looks on the flow as water flow

    目前的污水管道設計大多按重力流考慮，認為其流動狀態為均勻流，與清水在明渠中的流動類似。
  14. Open channel flow exists widely and its numerical simulation is of reality

    明渠水流運動在實際工程中廣泛存在，其數值模擬研究有現實意義。
  15. The direct numerical simulation methods for turbulent spots in the channel, open - channel and boundary layer flows are built respectively. effective algorithms composed of time - advancing, over - relax iteration and multiple grid methods are planned to raise computational efficiency

    分別建立了適用於在槽道、明渠和平板邊界層流動中直接模擬湍斑的數值方法，並精心設計了時間推進、超鬆弛迭代和多重網格等高效演算法，以提高計算效率。
  16. The extent of attenuation is proportional to the parameter under some assumptions in open channel flow. the lack of a sound theoretical basis for predicting the behavior of coarse particles means that experiments play a critical role

    在明渠二維恆定均勻流條件下，經過適當簡化和假定得到的結果表明，懸移質運動起到減弱流體紊動強度的作用，制紊作用隨參數的加大而增強。
  17. Measurement of liquid flow in open channels - stream flow measurement - moving - boat method

    明渠流量測量.第3部分:河川流量測量.第3d節:動船法
  18. Abstract : the 2 - d unsteady flow field calculating program has been developed. with this program, the flow processes have been calculated in pool

    文摘:開發了二維非穩定態流場計算軟體，應用該軟體計算了明渠中蓄水池內的非穩定態流動過程
  19. During the research of the practice of the faculty appointment in colleges and universities, the dissertation that paid on two aspects the steps and the methods included the following steps : ( 1 ) arrangement of positions for appointment ; ( 2 ) definition of methods of appointment ; ( 3 ) establishment of the system for assessment ; ( 4 ) formulation of system of payment ; ( 5 ) arrangement of the person who is out of work or looking for a job. the measurements and stratagems were : ( 1 ) to definite the roles of government and colleges or universities ; ( 2 ) to establish the reasonable mechanism of encouragement, competition and elimination ; ( 3 ) to expand the flowing channel of talents ; ( 4 ) to formulate the system of beginner " s qualification of a faculty

    具體的實踐環節包括： （一）設置聘任崗位； （二）確定聘任方式； （三）建立考核體系； （四）制訂薪酬制度； （五）安排落聘、待聘事務；具體的對策措施包括： （一）明確政府和高校在教師職務聘任制中的作用； （二）建立合理的激勵、競爭和淘汰機制； （三）開拓高校人才流動渠道； （四）制訂社會化的高校教師起點資格認證制度； （五）健全教師職務聘任制度的社會保障體系； （六）設立人事仲裁機構，依法實施聘任制。
  20. In this thesis a numerical model to solve the planear 2 - d depth - integrated flow ( dif ) has been established with irregular body - fitted mesh finite volume method and explicit maccormack predictor - corrector method and applied to the study of damming caused by a bridge pier under 14 working conditions varied with the combination of different pier shape. flow rate and contraction ratio

    本論文採用非規則貼體網格有限體積法和顯式maccormack預測-校正法求解平面二維水深積分方程，對明渠水流運動的數值模擬方法進行了研究，並且應用該數值模型計算了14種不同的橋墩體型、來流、收縮比的組合工況下的橋墩壅水問題。
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