Simply put, the coefficient of drag (Cd) is a way to quantify the various factors that affect, and result in, drag on an aerodynamic object. See the link below for an excellent discussion of drag coefficient on the NASA website. An airplane has 4 forces acting upon it and one of them is Drag, a force in the opposite direction of flight. Aeronautical engineers study the forces on a wing but found it easier to use non-dimensional measuresments. Drag is measure in Force (lbs). But Drag Coefficient is a value of force/force. This allows the engineer to produce charts for the numerous airfoil wing designs and have a Drag Coeffecient Chart that can be used for various sizes of wing applications.
The drag coefficient for a rock can vary based on its shape, size, and surface texture. Generally, rocks have a drag coefficient ranging from 1.0 to 3.0, depending on these factors. Smoother, more streamlined rocks will have a lower drag coefficient compared to rough, irregularly shaped rocks.
The drag coefficient of a skydiver can vary depending on their body position during free fall. Generally, the drag coefficient can range from 0.5 to 1.3 for a skydiver in free fall. This coefficient represents the drag force experienced by the skydiver due to the air resistance during descent.
The drag coefficient varies for different shapes. It is a measure of how aerodynamic an object is. For example, a streamlined shape like a teardrop has a lower drag coefficient compared to a flat plate. The drag coefficient is important in determining how much air resistance an object experiences when moving through a fluid, such as air or water.
Drag coefficient is a measurement of an object's ability to move through a fluid environment without resistance. It quantifies the drag force experienced by an object as it moves through the fluid. A lower drag coefficient indicates that the object is more streamlined and experiences less resistance.
The zero lift drag coefficient of a Boeing 747 is approximately 0.022. This value represents the drag force experienced by the aircraft when it is not generating lift.
Force on moving object by air friction: velocity2 * objects drag coefficient > Force on stationary object by wind: wind speed2 * objects drag coefficient
The 2012 Nissan GT-R has a drag coefficient of 0.26 Cd.
For cylinders coefficient of lift is approximately half of coefficient of drag while they are equal for Aerofoils.
coefficient of drag in 0 lift
drag coefficient of the 2017 Kia Forte sedan
The 2007 Volkswagen Jetta has a drag coefficient of 0.31 Cd.
The 2007 Lexus IS-250 has a drag coefficient of 0.28 Cd.
The 2006 Chevrolet Corvette has a drag coefficient of .28 Cd.
The 2009 Scion xD has a drag coefficient of .32 Cd.
The 2013 Audi A6 has a drag coefficient of 0.26 Cd.
The 2008 Audi TT has a drag coefficient of 0.30 Cd.
The 2009 Porsche Cayenne has a drag coefficient of 0.35 Cd.