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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.
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What does drag coefficient mean?
Drag coefficient can be defined as the ratio of the drag on a body moving through air to the prioduct of the velocity and the surface area of the body.
What are formulas to calculate drag coefficient when you don't have drag force?
Using empirical correlations such as the Dallavalle equation or a chart which plots Drag coefficient vs. Reynolds Number.
What is the coefficient of drag of a Boeing 747?
0.0331
What is the Drag coefficient of a skydiver?
About 1.0 to 1.4
What force exert by parachutes?
Drop any object from a plane and the downward force due to the mass will eventually be matched by an upward force due to air resistance (terminal velocity). This terminal velocity depends on the objects drag coefficient, what the parachute does is present a drag coefficient sufficient to give the required terminal velocity for landing . > You need no more than say 6 metres / second landing velocity, effectively this is the terminal velocity with the chute open. Using body mass of 80 kg and acceleration due to gravity of 10 (m/s)/s, this gives a downward force of ( 80 * 10 ) 800 newtons. To balance this at landing velocity, you need a drag coefficient calculated from: 800 = velocity2 * drag coefficient , so: drag coefficient = 800 / velocity2 = 22.22 > Compare this to the pre chute deployment velocity of around 80 metres / second, giving a drag coefficient of: drag coefficient = 800 / 6400 = 0.125
What is the definition of the push of air force?
Force on moving object by air friction: velocity2 * objects drag coefficient > Force on stationary object by wind: wind speed2 * objects drag coefficient
What is the drag coefficient of the 2015 Nissan GT-R?
The 2012 Nissan GT-R has a drag coefficient of 0.26 Cd.
Relationship between coefficient lift and coefficient drag?
For cylinders coefficient of lift is approximately half of coefficient of drag while they are equal for Aerofoils.
What is the Drag coefficient of 2017 KIA Forte?
drag coefficient of the 2017 Kia Forte sedan
What is the zero lift drag coefficient of Airbus A330-200?
coefficient of drag in 0 lift
What is the drag coefficient of the 2006 Chevrolet Corvette?
The 2006 Chevrolet Corvette has a drag coefficient of .28 Cd.
What is the drag coefficient of the 2009 Scion xD?
The 2009 Scion xD has a drag coefficient of .32 Cd.
What is the drag coefficient of the 2006 Toyota Prius?
The 2006 Toyota Prius has a drag coefficient of .26 Cd.
What is the drag coefficient of the 2013 Volvo XC70?
The 2013 Volvo XC70 has a drag coefficient of 0.35 Cd.
What is the drag coefficient of the 2007 Volvo XC90?
The 2007 Volvo XC90 has a drag coefficient of 0.36 Cd.
What is the drag coefficient of the 2005 Subaru Impreza?
The 2005 Subaru Impreza has a drag coefficient of 0.33 Cd.
What is the drag coefficient of the 2010 MINI Cooper?
The 2010 MINI Cooper has a drag coefficient of 0.35 Cd.
