二維翼切面空氣動力特性研析

Study on Aerodynamic Characteristics of a Two-Dimensional Airfoil

楊安石(An-Shik Yang) ； 黃聰欽(Tsung-Chin Huang) ； 洪振義(Chin-Yih Hong) ； 高永福(Yung-Fu Kao)

《中國航空太空學會學刊》 35卷4期 (2003/12) Pp. 387-391

https://doi.org/10.6124/TAASRC.200312_35(4).10

摘要

本研究旨在探討二維翼切面空氣動力特性，解析數學模型係基於連續、動量、能量守恆方程式，配合SIMPLEC數值方法，計算翼切面在不同馬赫數與攻角條件下之昇力係數、阻力係數、以及1/4翼旋力矩係數。模擬中以NACA0012二維對稱翼爲例，當0.6馬赫數與失速攻角評估範圍內，程式均能合理預測其氣動力參數值，並進而能轉化爲機翼氣彈分析之輸入負荷條件。

關鍵字

轉子葉片 ； 氣動力特性 ； 氣彈穩定性

並列摘要

The aerodynamic characteristics of a two-dimensional airfoil have been determined in this study. The governing equations, consisting of conservation of mass, momentum, and energy, are solved numerically using the SIMPLEC scheme. Adopting a NACA0012 symmetrical airfoil as an illustration case, main aerodynamic properties are resolved under broad ranges of Mach number and angle of attack. Under the situation of reaching stall state with Mach number value below 0.6, the calculated lift coefficient, drag coefficient, and 1/4-chord moment coefficient are discovered to be in reasonable agreement with the associated measured data. Predictions can be used as input loading conditions for further aeroelastic analysis.

並列關鍵字

Rotor blade ； Aerodynamic characteristics ； Aeroelastic stability