The coefficient of drag (cd) for a wedge is a dimensionless parameter that quantifies the aerodynamic drag force experienced by a wedge-shaped object moving through a fluid, such as air or water. The coefficient of drag provides a way to compare the drag characteristics of different shapes and sizes of wedges under various flow conditions.
- cd is the coefficient of drag for the wedge,
- θ is the wedge angle (angle between the wedge surface and the flow direction),
- γ is the specific heat ratio (ratio of specific heats) of the fluid,
- M1 is the Mach number of the upstream,
- (p2/p1) is the static pressure ratio,