69 항공 기술 영어 날개 골의 종류 및 항공기에 작용하는힘의 종류를 영문으로 작성하시오

69 항공 기술 영어 날개 골의 종류 및 항공기에 작용하는힘의 종류를 영문으로 작성하시오

69. 항공 기술 영어 날개 골의 종류 및 항공기에 작용하는 힘의 종류를 영문으로 작성하시오.hwp

목차 1.에어포일의 정의 2.에어포일의 종류 3.항공기에 작용하는 힘의 종류 본문 An airfoil or aerofoil is the shape of a wing, blade (of a propeller, rotor, or turbine), or sail (as seen in cross-section). An airfoil-shaped body moved through a fluid produces an aerodynamic force. The component of this force perpendicular to the direction of motion is called lift. The component parallel to the direction of motion is called drag. Subsonic flight airfoils have a characteristic shape with a rounded leading edge, followed by a sharp trailing edge, often with a symmetric curvature of upper and lower surfaces. Foils of similar function designed with water as the working fluid are called hydrofoils. The lift on an airfoil is primarily the result of its angle of attack and shape. When oriented at a suitable angle, the airfoil deflects the oncoming air (for fixed-wing aircraft, a downward force), resulting in a force on the airfoil in the direction opposite to the deflection. This force is known as aerodynamic force and can be resolved into two components: lift and drag. Most foil shapes require a positive angle of attack to generate lift, but cambered airfoils can generate lift at zero angle of attack. 키워드 항공, 기술, 날개, 종류, 기, 항공기