Drag Coefficient Calculator

Formula

The formula to calculate the Drag Coefficient (Cd) is:

\[ Cd = \frac{Fd}{0.5 \times p \times V^2 \times A} \]

Where:

\( Cd \) is the drag coefficient.
\( Fd \) is the force due to drag.
\( p \) is the density of the fluid.
\( V \) is the velocity.
\( A \) is the frontal area.

What is Drag Coefficient?

A drag coefficient is a unitless measure of the resistance to movement through a fluid an object has due to its shape. It is used in aerodynamics and fluid dynamics to quantify the drag or resistance of an object in a fluid environment, such as air or water.

Example Calculation

Consider an example where:

Force Due to Drag (Fd): 100 N
Density of Fluid (p): 1.225 kg/m³
Velocity (V): 30 m/s
Frontal Area (A): 2 m²

Using the formula to calculate the Drag Coefficient:

\[ Cd = \frac{100}{0.5 \times 1.225 \times 30^2 \times 2} = 0.0907 \]

This means that the drag coefficient for this example is 0.0907.