Physics of Fluids, Год журнала: 2025, Номер 37(5)
Опубликована: Май 1, 2025
The investigation of nonlinear characteristics cylindrical bubbles plays an important role in engineering fields such as underwater explosions and ship propeller cavitation. In the present paper, behaviors primary resonance excited by square wave are investigated compressible liquids using multi-scale method Lyapunov stability theory. influences excitation intensity, equilibrium bubble radius, polytropic exponent, detuning parameters on explored. findings encapsulated follows: (1) amplitude phase response demonstrate multivalued solutions, jumps, hysteresis phenomena. (2) As intensity radius increase, frequency peak shifts along backbone curve toward smaller parameters, unstable region expands, threshold for chaos is reduced. (3) Compared to results obtained under sinusoidal excitation, demonstrates values, a narrower range regions, higher threshold.
Язык: Английский