The work simulates the transport pipeline movement of the marine dynamic environment based on the computational fluid dynamics research method. The present work also studies the influence of the marine dynamic environment on the solid-liquid two-phase flow field in the pipeline. An experimental study on the hydraulic transport flow law of natural gas hydrate pipeline is performed on the experimental platform of deep-sea mining metallogenic system fluctuation. Results show a large disturbance of the transverse swing convection field of pipelines and a small influence of axial vibration. The flow field distribution characteristics in the conveyor pipeline are consistent with the steadystate working conditions when the amplitude of transverse oscillation is less than 0.5 m. When the oscillation amplitude is larger than 2 m, the vibration has a considerable influence on the solid-phase distribution, solid-liquid two-phase velocity, dynamic and static pressure, and pressure loss of the flow field in the conveying system. The flow field distribution is chaotic when the transverse oscillation period of the pipeline is small. This condition becomes highly evident when the oscillation amplitude is large.
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