Fluid-Solid Coupling-Based Vibration Generation Mechanism of the Multiphase Vortex

Multiphase vortices are widely present in the metallurgical pouring processes, chemical material extraction, hydroelectric power plant energy conversion, and other engineering fields. Its critical state detection is of great significance improving product yield resource utilization. However, multiphase vortex a complex dynamics problem with highly nonlinear features, its fluid-induced vibration-generation mechanism faces significant challenges. A fluid-solid coupling-based modeling method proposed to explore mass transfer process vorticity distribution mechanism. vibration-processing utilized discuss four flow-state transition features. vibration experiment platform established verify numerical results. It found that can better reveal vibration-evolution regularities coupling process. The flow field has maximum value water–oil–gas coupled process, induces pressure pulsation phenomenon, frequency amplitude much larger than water phase water–oil two-phase states. In generation state, increasing step structure high-frequency bands (45 Hz~50 Hz) random pulse components be used for online multiphase-coupling