Pressure drag, also known as form drag or profile drag, is a component of drag force experienced by an object moving through a fluid (such as air or water) due to the pressure differential between the front and rear surfaces of the object.
Where:
- is the pressure drag force.
- is the density of the fluid.
- is the velocity of the object relative to the fluid.
- is the drag coefficient, which depends on the shape of the object and the Reynolds number.
- is the reference area perpendicular to the flow direction.