flow passage 中文意思是什麼
flow passage
解釋
流通孔道-
In the model the film thickness in the passage was obtained at first using two phase flow theory ; then, similar analysis solution of concentration distribution of the pollutant in liquid phase and biofilm was obtained through mass component equation of pollutant in gas - liquid phases combined with the biochemical kinetic equation of mass transfer in biofilm and dismission of oxygen limited ; at last, the distribution of pollutant along the filter height and the waste gas purification efficiency were obtained
該模型首先運用兩相流理論獲得了通道內液膜厚度，然後通過污染物在氣相、液相的質量組分方程，結合生物膜內的傳質與不?慮氧限制的生化反應動力學方程，獲得了污染物在液相和生物膜中濃度分佈的近似分析解，最終得到污染物在氣相中沿塔高的濃度分佈及廢氣凈化效率。 -
It is concluded that the combustion chamber passage area, passage direction, passage shape and passage position have a strong effect on in - cylinder current motion and flow speed
計算結果表明，燃燒室通道截面積、通道傾角、通道形狀、通道布置對氣流運動的形式及氣流速度均有較大的影響。 -
Reynolds numbers ( based on average velocity at passage inlet and hydraulic diameter of the passage ) are changing from 20000 to 80000 and the extraction ratios ( suction ratios, sr ) are changing from 0. 30 to 0. 60 for each test model. so the influences of reynolds numbers, suction ratios and etc. on the discharge coefficients and pressure loss characterist ics are also presented. flow fields of typical passages are visualized with the flow visualization techniques and measured with hot - wire anemometer
對每一種通道結構，實驗在不同通道進口雷諾數（ re = 20000 、 40000 、 60000 、 80000 ）和不同通道總出流比（ sr = 0 . 30 、 0 . 45 、 0 . 60 ）下進行，以研究這兩個流動參數及其它相應變化的參數（氣膜孔的雷諾數re _ h 、氣膜孔與通道的動量比i等）對出流特性和流阻特性的影響規律。 -
The vortex simulated in this article include the shedding vortex induced by the vane trailing edge boundary layer, the endwall vortex generated by the endwall boundary layer interaction, the passage vortex generated by the rotor rotation, and the leakage vortex generated by the tip clearance flow
渦輪級內的渦運動包括：導向器葉片尾緣附而層引起的脫落渦；轉子通道內轉子的旋轉運動產生的通道渦；根腳區兩個端壁附面層干涉，形成的根腳渦；存在葉尖漏流時，出現的漏流渦。 -
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發動機高壓渦輪內流場的數值模擬，研究了干涉的周期性的問題，以及渦輪級內常見的非定常現象：激波、尾跡、脫落渦、根腳渦、通道渦、漏流渦。導向器尾緣會出現兩道激波，在吸力面的激波可稱為「運動」激波，壓力面的激波可稱為「定常」激波。 -
The 3 - d flow field is changed completely in a forward - swept compressor cascade, which makes the low energy fluid redistribute in the flow passage
葉片前掠改變了葉柵的三維壓力場，使得低能流體重新分配。 -
The effect of leakage flow due to the upstream hub axial gap on the rotor performance and the mechanism of interaction between the hub leakage flow and the rotor blade passage flow were studied based on the numerical simulations of the flow fields of a transonic compressor rotor with upstream hub leakage
摘要為研究壓氣機轉子上游葉根軸向間隙泄漏流對轉子性能的影響程度以及泄漏流與轉子流場之間的相互作用機制，對帶有葉根泄漏流的跨聲壓氣機轉子流場進行了數值模擬。 -
Comparing tow methods of efficency pre - estimation, it finds out the new method fit for super - low specific - speed pump. acoording to the study and comparison on efficency and reliability, the thesis points out merits and faults of the 5 types of impeller, and draws a conclusion that the complex impeller and partly blocked - flow - passage impeller are fit for the impellers of super - low specific - speed centrifugal pump
比較了泵效率預估的方法，提出了適合於極低比轉數泵效率預估的新方法，並對其性能要求的效率和可靠性兩方面進行了研究比較，指出了五種形式葉輪各自的優缺點，得到結論：復合葉輪和部分堵塞流道的一般葉輪適合作極低比轉數泵葉輪。 -
Research on the designing method of double - flow - passage impeller
雙流道葉輪設計方法研究 -
( 3 ) quadrature experiment consisted of four experimental factors including dental angle, space between dental structure, dental height and the depth of flow passage of dentate, any one of which has four different values. how these dental structural parameters affected hydraulic performance of dentate emitters was studied
（ 3 ）以齒形流道結構中齒角度、齒間距、齒高、流道深度為實驗因素，每個因素選用4個水平，進行正交實驗，研究了齒形流道結構參數對滴頭水力性能的影響。 -
Numerical simulation of the steady cavitating turbulent flow in the whole flow passage of a kaplan turbine has been carried out by using a full cavitation model and a mixture two - phase flow model
摘要採用一種完整空化模型和一種混合流體兩相流模型，對軸流式水輪機全流道內的定常空化湍流流動進行了數值模擬。 -
First super - low specific - speed centrifugal pump has a long and narrow flow passage for its high head and low capacity, and the power absorbed by disc friction is too high, so the efficiency is very low ; secondly the diffusion of flow passage is so high, that the reserved flow often emerges at the inlet and outlet of impeller. therefore the h ~ q characteristic curve is often hump - shaped, and at the low - capacity operating condition the instability often occurs ; thirdly the centrifugal pump at high - capacity operating condition is easy to overload because the n ~ q curve appears a rising trend
首先由於它的揚程較高、流量較小，所以它的流道狹長，圓盤摩擦損失較大，效率相對較低；其次由於它的流道擴散較嚴重，易在葉片進口產生迴流和在出口產生脫流，揚程流量特性曲線易出現駝峰，在小流量工況下易產生不穩定現象；第三，由於其功率流量曲線呈現上升趨勢，在大流量區運行時電機易過載。 -
The flow passage of high - and low - pressure cylinders of turbine no. 7 in guodin jianbi power plant had been retrofitted in 1999 with cooperation of pasonce company in england, and better result being obtained
摘要國電諫壁發電廠於1999年與英國帕森斯公司合作，對7號汽輪機高低壓缸通流部分進行了改造，取得了較好的效果。 -
The flow passage of intermediate - pressure cylinder, as well as the condenser and the vacuum extraction system had also been retrofitted in 2004, the safety and economic behavior of said unit being further enhanced
2004年又對7號機中壓缸通流部分及凝汽器、真空抽氣系統進行了改造，機組的安全性及經濟性均有了進一步提高。 -
The results show that the hydrodynamic vibration points with a same intensity and frequency but 180 phase shift are existed within a limited region of the flow passage
結果表明:在有限的流道區域內，存在強度相近，頻率相同，而相位相差180的流體振動點。 -
Furthermore, the relationship among flow passage width, flow rate of emitters and anti - clogging ability of dentate emitters was analyzed
此外，還分析了流道寬度、滴頭流量與齒形滴頭抗堵塞性能之間的內在關系。 -
( 2 ) hydraulic performance of seven typical emitters forms were studied under different flow passage length respectively through experiments. the exponent of flow state of these emitters was compared
（ 2 ）對7種典型流道結構形式的滴頭分別在不同流道長度下的水力性能進行了研究。 -
The optimal combination among structural factors was obtained through experimental results. in addition, which experimental factor has significant influence on the exponent of flow state and flow rate of these emitters was analyzed. finally, several regression models describing the relationship between flow rate and structural parameters of flow passage were set up under the condition of certain flow passage length and 10m working pressure
根據實驗結果分析了各因素之間的最優組合，分析了各因素對滴頭流態指數、滴頭流量的影響顯著性，並在流道長度一定的情況下，建立了10m工作水頭下滴頭流量與流道結構參數之間的模型。 -
Under the same working pressure and flow rate, the flow passage length and cross - section area of the seven different emitters were compared. according to those results, the anti - clogging ability of emitters was analyzed and several good structural form of flow passage were obtained. in addition, regression model describing the relationship among flow rate, the length of flow passage and work pressure was set up
比較了不同結構形式滴頭的流態指數和相同工作壓力和流量下的流道長度與流道截面積，分析了其抗堵塞性能，得出了較佳的幾種流道結構，並建立了描述滴頭流量與工作壓力及流道長度之間關系的函數模型。 -
The vortex type fluid oscillatory flowmeter based on measurement of vortex hydrodynamic vibration generated by specific flow passage, and the frequency of fluid oscillations is in direct proportion to flow rate
旋渦型流體振動流量計是利用流體在特定流道條件下流動時產生的旋渦振蕩，而且其振蕩頻率與流速成比例這種規律來測量流量的流量計。
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