Aerodynamic Drag
Found 8 free book(s)
Trajectory Calculation - MIT OpenCourseWare
ocw.mit.eduD aerodynamic drag A drag reference area ()˙ time derivative ( = d()/dt ) i time index Trajectory equations The vertical trajectory of a rocket is described by the altitude and velocity, h(t), V (t), which are functions of time. These are called state variables of the rocket.
Golf Ball Flight Dynamics - Union College
www.math.union.eduplotted to show the e ects of angular acceleration and aerodynamic drag. One system is used to model a smooth ball while another is used model a dimpled ball. Throughout the models the initial velocity and angle of attack a ect the trajectories. Initial velocity is …
Study on Drag Coefficient for the Flow Past a Cylinder
www.ripublication.comDrag is the heart of aerodynamic design. The accurate assessment of drag results in economic design of automobiles, chimneys, towers, buildings, hydraulic structures etc. The present work is the result of extensive experimentation on cylindrical bodies …
LIFT, DRAG AND MOMENT OF A NACA 0015 AIRFOIL
smiller.sbyers.comdrag and moment coefficients. The following equation relates the coefficient of lift to the angle of attack for thin symmetrical airfoils5. CL=2 By this theory, the coefficient of the moment about the aerodynamic center of a thin symmetrical airfoil is zero and that the aerodynamic center is located at the quarter chord or x/c = 0.25.
List of Symbols - University of Texas at Austin
www.ae.utexas.eduCLα lift curve slope CLmax maximum lift coefficient Cmac pitching moment about the aerodynamic center CT nondimensional thrust CT m nondimensional thrust moment CW nondimensional weight d diameter det determinant D drag e Oswald’s efficiency factor E origin of ground axes system E aerodynamic efficiency or lift to drag ratio
General Dynamics F-16 Fighting Falcon - Virginia Tech
www.dept.aoe.vt.edu4/21/04 6 Aerodynamic Configuration • Relaxed Static Stability – Increases lift-to-drag ratios at subsonic and supersonic speeds – Reduces down-load on the horizontal tail required to trim at high lift coefficients and at supersonic speeds • Increases total lift available at sustained-turn conditions (2% at subsonic cruise, 4-8% at M = 0.9, and 8-15% at M = 1.2)
Roll and Yaw Moments and Stability Yaw Moment Equation (1)
www.dept.aoe.vt.eduwhere is the vertical tail length, the distance from the cg to the aerodynamic center of the vertical tail, are the lift and drag of the vertical tail, and is the angle of attack of the vertical tail measured positive so as to create a positive side force. If we make the usual assumptions such as that is a small angle, and that , we can reduce Eq.
Chapter 2 Aircraft Structure - University of Florida
mae.ufl.edubasic aerodynamic concepts. This chapter brie!y introduces aerodynamics; a more detailed explanation can be found in Chapter 4, Aerodynamics of Flight. Four forces act upon an aircraft in relation to straight-and-level, unaccelerated !ight. These …