a) Calculate the drag (lbs) on the first and second bicyclists in racing posture (the trailing rider is drafting the lea
Posted: Thu Apr 28, 2022 8:40 pm
- A Calculate The Drag Lbs On The First And Second Bicyclists In Racing Posture The Trailing Rider Is Drafting The Lea 1 (138.23 KiB) Viewed 29 times
a) Calculate the drag (lbs) on the first and second bicyclists in racing posture (the trailing rider is drafting the lead rider). The cyclists are riding at 30 MPH in standard air. b) A horizontal cylinder rotates as shown. A uniform horizontal air velocity (U) approaches the cylinder. What uniform air velocity (U) results in the desired lift force? Use standard air conditions. 3 2 Diameter, D = Length, L = Rotational Speed = Desired Lift Force = 2.0 m 5.0 m 400 RPM 2.0 KN UO UO Сі = -0.295 + 1.909 CE) - 0.549 C) Lift Force The equation above is the lift coefficient, Cl, as a function of the spin parameter (U/U) for a smooth rotating cylinder in Magnus effect. Ug is the tangential speed of the cylinder surface and U is the uniform velocity of the approach air (Reid 1924). The reference area for this lift coefficient is the frontal cross section (the area the wind "sees"). © U U?