Search results with tag "Drag coefficient"
Ball Trajectories - University of Sydney School of Physics
www.physics.usyd.edu.aud is the drag coefficient. The only factor here that can be influenced by the player is the ball velocity. If the ball was a flat, circular disk, the drag coefficient would be 1.0. But a ball has a rounded nose which streamlines the air flow and reduces the drag. For a relatively new tennis ball, C d is about 0.55. A used ball experiences
6. Airfoils and Wings - Virginia Tech
www.dept.aoe.vt.eduHere we see that the drag coefficient is nearly constant at subsonic speeds and tends to rise just before Mach = 1. The biggest variation is in the neighborhood of Mach 1, called the transonic region. Above that region, say about Mach 1.2, the 2-D drag coefficient tends to be constant or it could increase or decrease slightly.
Topic 1 | Projectile Motion with Air Resistance
web.physics.wustl.eduFigure T1.2 shows the trajectory of a baseball with and without air drag. The radius of the baseball is r = 0.0366 m, and A = pr2. The mass is m = 0.145 kg, and we have chosen the drag coefficient to be C = 0.5 (appropriate for a batted ball or pitched fastball) and the density of air to be = 1.2 kg/m3 (appropriate for a ball-park at sea level).
Drag on Spheres - Pennsylvania State University
www.me.psu.eduDrag on Spheres Prepared by Professor J. M. Cimbala, Penn State University Latest revision: 11 January 2012 Nomenclature a speed of sound A projected frontal area (for a sphere, A = d2/4) CD drag coefficient: CD = 2FD/( V 2A) CL lift coefficient: CL = 2FL/( V 2A) d diameter of a cylinder, sphere, or other object FD drag force FL lift force g gravitational constant (9.81 m/s2)
DRAG COEFFICIENT OF A CYLINDER
sv.20file.orgThe cylinder tested is smooth and the flow remains defined by the Reynolds number. The boundary layer over the test section walls were assumed to be small relative to the width of the test section and are taken into account in the analysis. Turbulent effects are not considered in calculations, but are considered in the