airfoil theory 中文意思是什麼
airfoil theory
解釋
機翼理論-
Using method of oil - flow visualization techniques and measuring pressure distribution along airfoil chordwise and spanwise studies have been down for sidewall boundary - layer displacement effect in two - dimensional wind tunnel. three different chord models were tested in two different wind tunnel. in order to clarify the sidewall effects and study method of sidewall suction theory and sidewall interference correction method to remove effects of sidewall on model. the results of oil - flow test show that selection rational suction wary can obtain better testing results. by investigations on effects of the sidewall boundary layer suction and application of a sidewall interference correction method
為了很好地解決多機場航班隊列的擁塞問題，在將進場容量、離場容量與機場容量作為統一整體的情況下，充分考慮了機場間的網路效應，詳細研究了多機場航班隊列的優化問題，建立了多機場開放式非實時流量管理的數學模型，通過選取適當的決策變量，使其為線性0 - 1整數規劃模型，實現了中心流量集中管理.與其它演算法不同，本文提出的啟發式隱枚舉演算法能很好地解決此類問題，對某機場網路系統的模擬結果證明了所建模型、優化演算法及相應軟體的有效性和可靠性 -
Firstly, the paper analyzes the basic airfoil profile in theory. its forepart adopts ellipse column shape and its back - end adopts plane shape. simultaneously, the 3d parametrizing model is set up
首先，本文是從理論上對基準翼型進行了分析，前段曲線部分採用橢圓柱結構，后緣部分採用平面結構，建立了飛機機翼的三維參數化模型。 -
Thin airfoil theory
薄翼理論 -
Thin - airfoil theory
薄翼理論 -
In this thesis, a system planning of assembly sequence planning module in virtual assembly system is proposed which is based on analyzing the characteristic of airfoil assembly and assembly design. the core techniques of assembly sequence planning which based on genetic algorithm and fuzzy set theory are investigated in detail. main research work and achievements are as follows : 1
本文在分析飛機機翼裝配特點的基礎上，完成了虛擬裝配系統中裝配順序規劃模塊的設計與實現，並對基於遺傳演算法及模糊集理論的裝配序列規劃技術進行了深入研究，主要研究內容包括： 1 -
We generated its grid surface on the fuselage or missile body according to the geometry projection relation between aerodynamic components and the bilinear interpolation approach. finally, we successfully developed a new algebra grid generation technique in virtue of the improved four - boundary interpolation. in this thesis, we put emphasis on the researches of aerodynamic inverse design and drag reduction questions for airfoil and wing using euler equations and control theory proposed by jameson
（ 2 ）進行了應用控制理論和二維歐拉方程的翼型氣動反設計，以及有升力約束情形下翼型跨音速減阻問題研究，分別推導了相應的共軛方程及邊界條件的數學形式，並給出了相應的梯度求解公式形式，研究發展了共軛方程及梯度的數值求解方法，成功進行了多個翼型的反設計和減阻問題研究。 -
In this paper based on the optimization design method using control theory for airfoils, a design method for multi - element airfoils is developed with the chimera grids. and optimization computation for reducing drag of shockwave of single airfoil in transonic flow is also successful
本文的主要工作是：以在控制理論進行單段翼型優化設計的基礎上，利用嵌套網格技術將其發展為適用於帶襟翼多段翼型的優化設計。
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