The drag equation calculates the force of drag experienced by an object moving through a fluid, such as air or water. The drag force depends on various factors, including the object’s shape, size, speed, and the properties of the fluid. The general form of the drag equation is:
- is the drag force.
- (rho) is the density of the fluid.
- is the velocity of the object relative to the fluid.
- (drag coefficient) is a dimensionless coefficient that depends on the object’s shape and the flow conditions.
- is the reference area, which is typically the cross-sectional area of the object perpendicular to the flow