wing thickness 中文意思是什麼
wing thickness
解釋
機翼厚度-
Abstract : the effects of airfoil geometric parameters on wing " s spacial and polarized scattering characteristics have been systematically revealed. the results of the study indicated that the calculating value of diffraction from trailing edge by using the formula of the straight wedge is very far from experimental results for vertical polarization, and the contribution of thickness of the trailing edge to scattering must be considered in the calculation. the scattering peak of leading edge depends only on radius of airfoil for horizontal polarization. but for vertical polarization, it depends on maximum thickness and the location of maximum thickness. engineering formulas for evaluating all scattering peaks were given in the paper. it is important for the design of low - rcs wing
文摘:系統地揭示了翼形幾何參數對機翼的空間散射特性、極化散射特性的影響規律.研究發現，在垂直極化狀態下用理論尖劈公式計算機翼后緣繞射的計算結果與實驗結果相差甚遠.提出在垂直極化狀態下機翼后緣繞射的計算必須將后緣厚度考慮在內的見解.對於水平極化，前緣散射波峰只與前緣半徑有關；而對於垂直極化，前緣散射波峰與翼形最大厚度以及最大厚度位置有關.給出前後緣散射波峰的工程估算公式，為低雷達散射截面（ rcs ）機翼設計提供依據 -
Her appearance belongs to the fire type, has sharp type of face, there are more black than white in the pupils of her eyes, both eyes are wide apart, the ears are lower than the eyebrows, her earlobes are thick and broad, protruding internal earbone, short nose, wing of the nose is frail and a little protruding, her mouth forms a line when it is closed, the sides of her mouth is slightly turn downwards, the thickness of the upper and lower lips is even, her cheekbones are not high, and the law grain is profound
面相屬火，尖形臉，額頭高且突，下巴尖，眼珠黑多白少，兩眼間的距離開闊，眉陵骨凸，耳低於眉，耳珠厚和寬，內耳骨凸出，鼻短、鼻翼單薄和有點外仰，人中平滿欠缺凸下溝紋，嘴巴緊閉時成一線，嘴邊兩角微微向上彎，上下唇的厚度均勻，顴骨位置不高也不大但法令紋深長。 -
The horizontal and vertical momentum loss caused by the shock of heavy rain in low - level wind shear of thunderstorms on the airframe and wing are analyzed, the water film thickness on the airframe and wings estimated, and the flight resistance resulted from raindrops - striking caused by the roughness of airplane when the heavy rain shocks the airplane is discussed
摘要分析了雷暴低空風切變中大雨滴沖擊飛機的機身和機翼而引起的水平和垂直動量損失，估算了大雨累計在機身和機翼上的水膜厚度，並討論了因遇到大雨雨滴沖撞而粗糙化的機體所產生的阻力。 -
In order to predict hydrodynamic characteristics a computational system is developed including determination of the pressure distribution on a wing section by use of the conformal mapping method and panel method respectively and of the flow in boundary layer according to the thin shear layer approximation ( tsl ) for navier - stokes equation approach. the wing sections of naca4412 and naca0012 are applied to test the computational system. the numerical inspection shows that the panel method with better precision and the momentum and the displacement thickness of boundary layer can be used to complete this calculation
本文分別用守屋的保角變換法和基於源匯渦分佈的面元法，建立了計算槳葉表面壓力分佈的數學模型；應用納維-斯托克方程的薄層近似理論模式和有限差分數值方法，建立了計算機翼表面邊界層內部流動的數學模型；應用槳葉表面邊界層內部粘性流動和外部勢流流動在邊界上的匹配演算法，建立了槳葉表面二相流流動的計算方法和相應的計算機程序。
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