The “angle of the rearward Mach line,” often denoted as , represents the angle formed between the Mach line (a type of shock wave) and the direction of the flow after it has been deflected by a certain angle . This concept is commonly encountered in the study of compressible fluid dynamics, especially when analyzing the behavior of flows around curved surfaces or obstacles.
- is the angle of the rearward Mach line.
- is the angle of the forward Mach line before deflection.
- is the deflection angle.