open channel 中文意思是什麼

open channel 解釋
明渠。

  • open : adj 1 開著的，開放的；可進入的，可分享的 （to）; 無蓋的，敞口的；敞開的；展開的；開的；開闊的，開...
  • channel : n 1 水路，水道，渠，溝；海峽；河床，河底。2 （柱等的）槽，凹縫；【機械工程】槽鐵，凹形鐵。3 〈比...
  1. These meters find wide use in open channel measurement and are usually a type of weir or flume.

    這些流量計在明渠測量中得到廣泛地應用，通常是以水槽或堰的形式出現。
  2. A land drain is usually a pipe buried in farm land but it may also be an open channel.

    農田的排水系統通常是埋在農田中的管子，但也可以是明渠。
  3. Numerical simulation of compound open channel flow

    復式明渠水流運動的數值模擬
  4. Standard test method for open channel flow measurement of water with broad - crested weirs

    用寬口堰測量明渠水流量的標準試驗方法
  5. Therefore, under the certain condition of the profile of open channel, the size of long and narrow plate and installation, the flux can be achieved from the equal flux curve if the opening angle of the plate and water depth in front of the plate are accurately determined

    在確定渠斷面、細長板尺寸以及安裝布置條件下，只要準確測得細長板開啟角與板前水深，便可利用等流量線圖得知此時的流量。
  6. In consideration of the fact that there lacks a reasonable method suitable for wide application in flux measurement for considerable lateral canals and ditches, a new method based on the relationship between the opening angle of long and narrow plate and flux of open channel is put forward

    摘要針對灌區目前缺少適用於面廣量大的斗、農渠，以及適合大面積推廣應用的量水方法等問題，提出一種基於細長板開啟角與明渠流量關系的量水方法。
  7. The verification of the algorithm is performed using a gauss - distributed concentration ball and a stock wave at steady flow in an open channel. the comparison with an analytical problem solution shows that the precision and the stability of quasi - consistence hexahedral element method is as good as that of consistence hexahedral element method, better than that of the linear interpolating function method

    6 、比較分析了網格布置形式對圓管流動和臺階突擴流動計算結果的影響后表明，應在物理量梯度變化較大的區域適當加密網格，才能較好地模擬這些區域的流動特性以及壁面對整個流動的影響。
  8. Instrument for sediment measurement and particle size analysis in open channel

    河流泥沙測驗及顆粒分析儀器
  9. 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
  10. Standard test method for open - channel measurement of time of travel using dye tracers

    使用染料示蹤劑明渠測量行程時間標準試驗方法
  11. 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
  12. Subcritical open channel flow

    摸亞臨界流
  13. 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。
  14. In pattern, the concentration rises from the surface to the bottom ( in open channel flows ). as for

    型是指濃度從水面到底壁呈上小下大（明渠流） 。
  15. Fluid physical properties, pressure measurement, forces due to static fluids, bernoulli ' s equation, general energy equation, energy losses due to friction, pipe line systems, pump selection and application, open channel flow

    本課程含流體物理性質、壓力測量、沉體平面和曲面所受作用力、柏努利方程式、一般能量方程式、摩擦形成的能量損失、管線系統、明渠流、泵的選擇與應用。
  16. 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。
  17. 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。
  18. Development of communications software for ultrasonic open - channel flowmeter monitor system

    超聲波明渠流量計監控系統通信軟體的開發
  19. Development of communication software for lmc ultrasonic open - channel flowmeter monitor system

    型超聲波明渠流量計監控系統通信軟體的開發
  20. In order to measure water usage in the plain irrigation region, economic and flexible flow measure method should be chosen at the prerequisite of making good use of exiting water works. considering the reality that the irrigation devices are usually various and the exiting open - channel flow meters are costly and inflexible, the chosen field unit should be general and worth

    考慮到平原灌區中的灌溉形式和量水設施的多樣化，現有的明渠流量計通用性、靈活性差，所選擇的現場單元應具備通用、測控一體、性價比高的特點，既實現不同測流方案的流量計算，又達到控制水量的目的。
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