Lift

The four forces of flight are the main reason why planes fly and how they are able to glide through the air majestically. Each force of flight helps to guide the airplane to its destination by helping it withstand gravity and pressure. Lift is one of the four forces, lift is an upward force that is created by the movement of air above and below an airplane wing. Lift helps balance out the weight of the plane for it to be able to withstand gravity. Lift's air flows faster above the wing and slower below the wing, which creates a difference in pressure that keeps the airplane flying. A second force is weight, which is pressure or gravity that pulls the airplane back to earth. Weight helps the plane control itself, such as going up or going down…

In this laboratory session, the pressure distribution over a NACA 2415 aerofoil for a range of angle of attack was measured. The lift coefficient for the aerofoil was calculated and compared with the published NACA data, the effect of the leading-edge slat is determined using the wind tunnel experiment. Also understand the aerofoil characteristic in terms of fundamental fluid dynamics. The coefficient of pressure (C_p) is calculated by the ratio of static pressure (P-P_∞) over the dynamic…

I joined Professor Dr. Md. Mashud’s CFD group and started developing my skill on the application of ANSYS Fluent and OpenFOAM as simulation tools. Finally, I decided to use ANSYS Fluent for my research work on “Numerical Study of Flow Past a Marine Rudder”. During my research, I faced the problem with the stall angle at around 16 degree angle of attack of the flow. At this angle of attack of the flow, the increase of lift force on NACA 0012 airfoil section stopped suddenly and after that, lift…

model that is typically used for sizing by traditional methods. The wing box odel mainly consists of Shell and Beam elements representing skin and stringers/stiffeners, respectively. The whole wing model with its major substructures (centre, inner and outer wing) is given in Fig. 4. Combining wing box with fuselage and empennage FE models results in a WAM of approximately 250,000 degrees of freedom. A finite element model common to the stress, aero elastics and the MDO group is used. This FE…

Assessment Task 1 A. IMPLEMENTATION PLAN Goal: lift distribution capacity by 20% Current resources: 30 employees - 1 business manager - 15 employees in picking and packing team - 10 in distribution team - 4 in checkout team Operating hours: 5am to 5pm Products for distribution: dry food products, chemical cleaners, refrigerated foods, fresh and frozen produces, cigarettes and alcohol. Strategic direction: • Increased efficiency in distribution • Minimise wastage in resources • Improved…

Chapter 1 Introduction 1.1 What is aerofoil? Aerofoil is a large stucture which is attached to the airplane. It has curved surfaces designed to give required ratio of lift and drag. It helps to create different aeodynamic forces. The force perpendicular to the motion of aeofoil is lift force. The force parallel to the motion of aerofoil is drag force. 1.2 How it works? Aerofoil consists of following components: • Suction surface • Pressure surface • Leading edge • Tailing edge •…

This is achieved by placing the wing at an angle of yaw which such that the component Mach number normal to its long axis be subsonic. M⊥ = M∞ cos β Where β is angle of sweep. Let us assume that the critical “drag divergence” mach number of the wing section is 0.7, then the angle of yaw must be such as to reduce the component Mach number to this value. For M-1.0 the angle of yaw required is then 45 deg. 2.3.2 Increased extension of the wing in the flight direction One of the major advantage…

In flight there are four basic components; thrust, drag, lift, and weight. Newton’s laws and The Bernoulli Principle are the explanation of how everything works. Balance of force is a very important part of it. If the upward force is greater than the gravitational force imposed on an object, the object will go up. If the gravitational force is greater, then the object will go down or remain on the ground. World War I was the first time that airplanes were used on a large scale. At the start of…

Background Knowledge The question for this experiment is, Does the angle of an airplane wing affect the average rate of descent of the plane while gliding? So, the thing that is being tested is if the angle of an airplane wing, which determines the average rate of descent. In this experiment, the average rate of descent will be found by dividing the distance the plane traveled by the time it took the plane to land. First, how planes fly needs to be understood. Airplanes fly because the wings…

number of 4.28 x 105 and Mach number of 0.07. The pressure distribution over the aerofoil was recorded and used to derive the coefficient of lift, pressure drag and pitching moment. Variations of these parameters with incidence and flap deflection were investigated. Thin aerofoil theoretical prediction of a 2π/radian lift curve, aerodynamic hysteresis and theoretical aerodynamic centre at 0.25C were examined. 1 Introduction The experiment investigates the characteristics of an aerofoil in a 2D…