flow cascade 中文意思是什麼

flow cascade 解釋
梯級跌水
  • flow : vi 1 流，流動。2 （血液等）流通，循環。3 流過；川流不息；（時間）飛逝；（言語等）流暢。4 （衣服、...
  • cascade : n 1 （陡巖落下的）瀑布；【園藝】人工瀑布。2 瀑布狀物；波形花邊。3 【物理學】級；級聯，串聯；【無...
  1. Numerical simulations of compressible flow in cascade

    葉柵可壓縮流場的數值分析
  2. As we know, inverse techniques make blade ' s profile well compatible with its surface velocity distribution, however, they give designers big challenges that the ideal velocity distribution is hard to obtained and sometimes the non - physical solution, such as double covering of flow field or unclosed profiles, would come out. the proposed design procedure in the paper has avoided the disadvantage mentioned above. in this paper, a quasi - irrotational equation is used to describe the flow in cascade instead of the generally used irrotational equation

    眾所周知，一般的反問題和混合問題的最大特點，是在給定的壓力面和吸力面上的壓力分佈或速度分佈條件下，直接得到葉片的幾何形狀，它可以使葉型型面與表面氣流參數有機結起來；其不足之處在於，對設計者而言，很難給定理想的葉片表面壓力分佈或速度分佈，並且有時會得到一個非物理解，如：得出的初始葉型可能會出現前緣、尾緣不封閉的現象。
  3. Effect of reynolds number on turbine cascade flow

    雷諾數對渦輪葉柵流動的影響
  4. Also be sure to cascade your headings. a main heading, for example, would be larger than subheadings. this effect creates a sense of emphasis and flow to the information

    標題要有層次感。比如說，主標題的字號要比副標題大，這樣會創造強調效果，引導讀者繼續閱讀文章。
  5. Influences of swept and curved blade on the flow near compressor cascade endwall

    掠對壓氣機端壁流動的影響
  6. Both numerical and experimental investigations were carried out to study the effect of aerodynamic sweeping - curving on the endwall flow field of compressor cascade

    摘要利用數值和實驗方法對氣動彎掠在壓氣機葉柵中的作用機理進行了研究。
  7. These measurements are complemented by measurements of the flow field downstream of the cascade. the integrated losses and locations of secondary flow features with and without endwall film - cooling are determined for variations of both coolant supply pressure and injection location

    以無端壁氣膜冷卻和有端壁氣膜冷卻兩種情況進行研究，對比地獲得了兩者的綜合損耗和二次流特徵區域隨冷卻氣體供給壓力和注射位置的變化規律。
  8. The numerical flutter analysis system was formed by the three - dimensional numerical simulation of the vibrating cascade flow combined with the structural dynamics analysis of vibrating blade

    將振動葉柵三維流動數值模擬與振動葉片結構動力學分析相結合，建立了葉片顫振數值分析系統。
  9. 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。
  10. Numerical simulation of 3d flow in a turbine cascade at large incidence

    透平葉柵大攻角流動特性的三維數值模擬
  11. Numerical analysis of the behavior of two - dimensional separation flow of a turbine last stage rotor cascade at large negative incidence

    大負攻角下汽輪機末級動葉柵二維分離流特性的數值分析
  12. Direct numerical flow simulation in a two - dimensional turbine cascade

    二維渦輪葉柵流場的直接數值模擬
  13. Numerical simulation of unsteady vortex in the wake of cascade flow

    葉柵流場尾跡中非定常渦系的數值模擬
  14. The effect of turbine blade positive curving on the flow field of a turbine transonic cascade

    葉片彎曲對跨音速渦輪葉柵流場的影響
  15. In this thesis, adopting compressible navier - stokes equations and compressible k - - e turbulence double model, studied 2d viscous flow field in wet turbine ' s separate - stage. coordinate transformation is made for the navier - stokes equations by using body fitted coordinate system, moreover, the flow field in 2d cascade is calculated by using the well - established simple method

    本文採用可壓縮氣體的n - s方程，並採用可壓縮的-湍流雙方程模型，研究了飽和汽輪機分離級內二維粘性葉柵流場，採用貼體坐標系對n - s方程進行了坐標變化，並利用成熟的simple演算法對二維葉柵內的流場進行了計算。
  16. Numerical simulation of shocked flow within cascade

    葉柵激波流場的數值模擬
  17. Abstract : this paper uses the topology theory to analyze the surface flow spectrums of straight, positively curved and negatively curved cascades with relative tip clearances of 0. 023 and 0. 036, finds apparent differences of topology and vortex structures in the blade tip and the suction side wall corner of single type of cascade with this two clearances, and studies the mechanism of the difference formation as well as their effects on the energy loss

    文摘:應用拓撲原理分析了葉頂相對間隙為0 . 023和0 . 036的渦輪直葉柵和正、反彎葉柵的壁面流譜，發現在兩種間隙下同類葉柵的拓撲與旋渦結構在葉頂和吸力面壁角明顯不同，探討了差別形成的機理及其對能量損失的影響
  18. Due to the possible change of flow and the redistribution of water resources, the project will have a certain impact on the operations of the cascade hydropower stations in the main stem of the huijiang river

    此為東水西調工程。該工程實施后使受水地區受益的同時，也對渾江幹流上已建的梯級水電站的效用造成一定的損失。
  19. Numerical simulation of the three - dimensional turbulent flow in a turbine stage cascade

    渦輪級葉柵三維湍流流動的數值模擬
  20. Numerical simulation of wet steam flow with spont - aneous condensation in turbine cascade

    平面葉柵中的濕蒸汽兩相結流動數值模擬
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