Effects of different blade deflection angles on internal flow-induced noise in a shaftless pump-jet propulsor
Shaftless pump-jet propulsors offer high propulsion efficiency but also generate significant flow-induced noise due to complex internal rotating flows. This study investigates blade deflection angles of ‒2°, 0°, and +2° through unsteady simulations with the RNG k–ε turbulence model, supported by experimental valida...