Numerical Simulation Research on the Anchor Last Deployment of Marine Submersible Buoy System Based on VOF Method

Marine submersible buoy systems are widely-used equipment for ocean resource development. The marine system studied in this paper consists of the buoy, battery compartment, anchor block, mooring line, and power supply cable. To study mechanical behavior obtain speed variation each component during last deployment, establishes free surface computational fluid dynamics model based on VOF method. This includes incompressible Navier–Stokes equations, Renormalization-Group turbulence model, fractional areas/volume obstacle representation is tracked using lumped mass method used to simulate line results showed that tension forces increase when lines were straightened. Subsequently, gradually decrease with oscillations. After block sinks sea floor, positive buoyancy compartment will cause large