Advances in the Multiphase Vortex-Induced Vibration Detection Method and Its Vital Technology for Sustainable Industrial Production

Abstract

Fluid-induced vibration detection technology for the multiphase sink vortex can help achieve efficient, safe, and low-carbon sustainable industrial production in various areas such as the marine, aerospace, and metallurgy industries. This paper systematically describes the basic principles and research status in light of the important issues related to this technology in recent years. The primary issues that occur in practical application are highlighted. The vital technologies involved, such as the vortex-formation mechanism, interface dynamic evolution, the shock vibration response of thin-walled shells, and vortex-induced vibration signal processing algorithms, are analyzed. Based on in-depth knowledge of the technology, some significant scientific challenges are investigated, and further research prospects are suggested. The research results show that this technology can achieve the real-time detection of vortex-induced vibration states. Two future research directions are those of exploring multiphysical field coupling under harsh conditions and more accurate modeling methods for multiphase coupling interfaces. Regarding vortex-induced vibration, forced-vibration characters with various restriction conditions, the forced-vibration displacement response of liquid-filled shells, intrinsic properties influenced by random excitation forces, and highly effective distortion-detection algorithms will continue to attract more attention. The associated results could give technical support to various fields, including energy-efficiency improvement in manufacturing processes, tidal power generation condition monitoring, and the performance optimization of low-carbon energy components.

Fluid–Solid Mixing Transfer Mechanism and Flow Patterns of the Double-Layered Impeller Stirring Tank by the CFD-DEM Method

“…where ρp, vp, and dp represent the density, velocity, and diameter. Cd and Rep denote the drag coefficient and Reynolds number [44][45][46], with their expressions as follows: During the chemical reaction course, the density of the liquid is lower than the density of the particles, and the virtual mass force and Basset force are deleted. Thus, the equation can be expressed as follows:…”

“…where ρ p , v p , and d p represent the density, velocity, and diameter. C d and Re p denote the drag coefficient and Reynolds number [44][45][46], with their expressions as follows:…”

Multi-physical Modeling and Adjusting for Ultrasonic Assisted Soft Abrasive Flow Processing

“…The soft abrasive flow is a typical incompressible viscous fluid and keeps the continuity in the processing [30]. Therefore, it accords with the continuity equation and Navier-Stokes (N-S) equation [31,32] where μ i , μ j (i, j=1, 2, 3) represent the components of velocity vector μ in three coordinate directions; x i , x j represent the direction vector in three coordinate directions, p is the fluid pressure; ρ is the fluid density; μ is the kinetic viscosity; K i is the gravity component; t is the time, and τ is the turbulent Reynolds stress: where μ i ', μ j ' are the fluctuation velocity values, and η is the turbulent viscosity.…”

Study on the Hydrodynamic Evolution Mechanism and Drift Flow Patterns of Pipeline Gas–Liquid Flow

“…In response to these issues, scholars have conducted in-depth studies on slug flows, including the macroscopic laws of averaged parameters like slug length, long bubbles, and liquid holdup [21][22][23]. Due to the complexity of slug flow and limitations in experimental technology and measurement methods, there remains substantial research potential in the natural evolution of slug formation, merging, and disappearance.…”