Controlling the Dynamics of Cloud Cavitation Bubbles through Acoustic Feedback

Cloud cavitation causes nontrivial energy concentration and acoustic shielding in liquid its control is a long-standing challenge due to complex dynamics of bubble clouds. We present framework study closed-loop through feedback. While previous approaches have used empirical thresholding, we employ model-based state estimation coherent based on theory high-performance computing. Using pulsed ultrasound setup, demonstrate set-point the pulse-repetition frequency (PRF) modulate near solid target over $O(100)$ s. identify quasiequilibrium correlation between PRF an optimal minimize target. This can be readily scaled up by enhanced sensing computational power.