The total drag coefficient for a supersonic airfoil represents the sum of two main components of drag: pressure drag (also known as wave drag) represented by c and skin friction drag represented by . This is a common concept in aerodynamics and is used to evaluate the overall drag characteristics of an airfoil operating at supersonic speeds. Pressure Drag (Wave Drag, c): Pressure drag is a type of drag that arises from the shockwaves generated by an airfoil as it moves through the air at supersonic speeds. Skin Friction Drag (): Skin friction drag is the drag that results from the friction between the air and the surface of the airfoil.
- Total drag coefficient
- Wave drag coefficient (cd)
- Skin friction drag coefficient (Cf)