Reflections on the acoustic wave propagation speed in homogeneous two-phase flow

Any change in the hydraulic attributes of a pressurized flow system triggered at a specific point is communicated to other parts of the system with a finite velocity, a value variously called the acoustic wave speed, wave celerity, or acoustic velocity. A reasonable estimate of the magnitude of the acoustic velocity plays a key role in modeling single phase flow but also has importance for modeling homogenous liquid-gas two-phase flow as the …