blade cascade 中文意思是什麼

blade cascade 解釋
葉柵
  • blade : n 1 （殼、草等的）葉片，葉身，葉。2 刀片；（安全）剃刀刀片 （＝ razor blade）; 刀口，刃；刀，劍；...
  • 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. 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。
  2. 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
  3. 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。
  4. 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
  5. A new model for film cooling effectiveness computation on blade surface in a turbine cascade

    渦輪葉片型面氣膜冷卻效率的計算模型
  6. 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
  7. Air cooled cascade blade

    氣冷葉柵槳
  8. The outlet flowfield and static pressure on blade surfaces of the classical turbine stator cascades with straight and - 10 、 - 20 bowed blades were measured in the linear cascade wind tunnel

    摘要在平面透平葉柵風洞中，測量了一種典型透平靜葉型直葉片葉柵和葉片彎曲角分別為- 10 、 - 20的反彎曲葉片葉柵的出口流場和葉片表面靜壓。
  9. Development of rotating linear cascade facility for simulating blade tip clearance flow

    模擬葉尖間隙流的轉動平面葉柵實驗方案
  10. With this program, the blade suit for flow parameters that was obtained from the meridional - flow program is designed. finally, the flow field of the cascade of the counter - turbine is simulated using the cfd program. the cfd program is based on the jameson cell - centered finite volume method

    最後對所設計出的對轉渦輪平面葉柵內部流場進行了初步數值計算，採用的計算格式為jamescn的具有二階精度的runge ? kutta四步顯式有限體積法，結合時間推進求解euler方程。
  11. Then a laplace equation can be deduced and through computation, the blade profile coordinates and geometry of the cascade result from an analytical solution. next, an optimization method, taking the geometry parameters of the unclosed profile as its objective functions, is used to obtain an optimized blade profile. and last, the optimized profile is refined with round arcs added in the leading and trailing edges

    本文採用的勢、流函數解析法法中，將無旋方程用新的類無旋方程替代，這樣在計算域上得出速度場的解析關系式，計算得出初始葉型；然後以此初始葉型的幾何參數，例如前尾緣的封閉程度和葉型彎角等為目標函數，通過優化程序對初始速度進行自動調節直到目標函數值最小為止。
  12. There were some intensively nonlinear features in the vibrating cascade flow. the frequency of the separated vortex ' s propagation was not equal to the vibrating frequency of the blade

    二維分析中發現振動葉柵非定常粘性流動具有較強的非線性特徵，振動誘發的分離渦傳播頻率與葉片的振動頻率不一致。
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