profile blade 中文意思是什麼
profile blade
解釋
定型葉片-
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。 -
Blade profile drag coefficient
槳葉剖面阻力系數 -
The pump wheels, turbine wheels, and stators generated by the different blade parameter profiles were compared and the fundamental law of the converter performance versus the blade angle profile was derived
通過對不同參數變化規律生成的泵輪、渦輪、導輪的葉型進行對比分析，總結出液力變矩器葉片角變化對液力變矩器性能影響的基本規律。 -
This new technology changes from the traditional method by which the induced and compressor wheel separately are designed and produced to a new one by which the one - piece compressor is designed. on the basis of this new technology and the optimum blade profile, the performance of both the compressor and the turbocharger is largely improved. through the heating power calculation of the compressor, the analysis of the surge and the block of the compressor, the test - bed performance test of the turbocharger, the matching test of turbocharger and diesel engine, the propulsion test of the turbocharger on plateau condition, it is proved that the newly - designed compressor not only has high efficiency, but also improves the flow distribution in the high efficiency area so that the propulsion line can run through the high efficiency area
主要內容包括：提出一種全新的壓氣機葉輪技術和概念，這種技術將傳統的導風輪和壓氣機分開設計、單獨加工改為整體設計、整體加工的單體葉輪；從增壓器與柴油機配機計算所得出的基本參數出發，通過對壓氣機進行熱力計算，確定壓氣機的基本結構參數；再對葉型以及葉輪輪廓與葉輪罩殼的配合間隙進行優化，對新設計的壓氣機進行喘振和堵塞分析；通過增壓器平臺性能試驗，驗證了新設計的壓氣機的性能水平得到了較大的提高，達到了提高增壓器的整體性能水平的目的；通過增壓器與柴油機配機試驗、以及增壓器用於高原條件下的牽引試驗，驗證了新設計的壓氣機不但具有高效率，還改善了高效率區的流量分佈，使牽引特性線貫穿高效率區。 -
In the data preprocessing step, by removing redundant data, dispersing inlet and outlet circle, offsetting the blade profile, data format is unified. in the case that measured profiles match theory profiles, each error item is attained by using appropriate arithmetic
數據預處理部分經過葉片理論型線的冗餘點剔除，進、出汽邊圓弧離散以及理論型線的偏置等步驟，可實現理論型線與實測型線數據格式的統一;最後通過葉片的理論型線和實測型線重合度匹配等演算法得到實測葉片的各主要誤差項。 -
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。 -
In this thesis, the key technologies of turbine blade modeling cad system are studied based on the deep analysis of the turbine blade modeling. the following are listed works done on this topic : a joining method is given to create the smooth section profile curves of turbine blade
本文以航空發動機渦輪葉片為研究對象，重點研究了渦輪葉片造型cad系統的關鍵技術，完成了如下工作：本文研究了渦輪葉片的外型造型方法。 -
The idea of the design method throws off the reliance on the engineering experience, avoids complicated special transformation, and has the blade profile and impeller optimized
本文的設計思想，減少了對工程經驗的依賴，避免了復雜的空間轉換，可使葉型和葉輪得到優化。 -
As a chinese jian, dragon two handed jian shared the characteristic of having a straight blade that featured very little profile and distal tapering
卷雙手劍作為一枝中國劍，也分享了中國劍一些特性，就是刃厚和刃闊都不會隨著長度而大
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