The “angle of the forward Mach line,” often denoted as , refers to the angle formed between the Mach line (a type of shock wave) and the direction of the incoming flow in compressible fluid dynamics. This angle is crucial in understanding the behavior of shock waves and their interactions with supersonic flows.
- is the angle of the forward Mach line before deflection.
- is the angle of the rearward Mach line.
- is the deflection angle.