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Article
Time-frequency analysis of internal waves generated by a towed and self-propelled submerged body model
The spectrogram, based on a short-time Fourier transform, can visualize the time-dependent frequency spectrum of waves and is easy to compute. This time-frequency analysis method provides crucial information a...
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Article
A Prediction Method of Internal Solitary Wave Loads on the Semi- Submersible Platform
An investigation into the prediction method for internal solitary waves (ISWs) loads on the columns and caissons of the semi-submersible platform found on three kinds of internal solitary wave theories and the...
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Article
Experimental Investigation and Prediction Model of the Loads Exerted by Oblique Internal Solitary Waves on FPSO
By using a 30-meter-long wave flume equipped with a double-plate wave maker, a series of depression ISWs were generated in a density stratified two-layer fluid and the forces exerted by oblique internal solita...
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Article
A high precision computing method for heat transfer in the process of oil-water displacement
The process of oil-water displacement is one of the key technologies in offshore underwater tank. When hot oil is contacting the normal-temperature water, the interfacial heat transfer should be investigated a...
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Article
Applications of An Eddy-Viscosity Eliminator Based on Sigmoid Functions in Reynolds-Averaged Navier-Stokes Simulations of Sloshing Flow
Reynolds-averaged Navier-Stokes (RANS) turbulence modeling can lead to the excessive turbulence level around the interface in two-phase flow, which causes the unphysical motion of the interface in sloshing sim...
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Article
Modelling of the Vortex-Induced Motion of A Single-Column Platform with Non-Linear Mooring Stiffness Using the Coupled Wake Oscillators
A phenomenological model for predicting the vortex-induced motion (VIM) of a single-column platform with nonlinear stiffness has been proposed. The VIM model is based on the couple of the Duffing-van der Pol o...
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Article
Experimental investigation of combined vibrations for a hydrofoil-rod system at low Reynold numbers
A hydrodynamic tunnel experimental investigation and analysis of vibration characteristics for a hydrofoil in a transient regime is considered. Tests are performed for NACA 0017 models with a non-uniform secti...
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Article
Numerical study on variation characteristics of the unsteady bearing forces of a propeller with an external transverse excitation
The unsteady bearing forces of a propeller can be significantly affected by external transverse excitations. This paper numerically studies the unsteady variation characteristics of the bearing forces of a thr...
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Article
Experimental, Numerical and Simplified Theoretical Model Study for Internal Solitary Wave Load on FPSO with Emphasis on Scale Effect
Scale effect of ISWs loads on Floating Production Storage and Offloading (FPSO) is studied in this paper. The application conditions of KdV, eKdV and MCC ISWs theories are used in the numerical method. The dep...
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Article
Experimental and computational investigations on severe slugging in a catenary riser
Severe slugging can occur in a pipeline-riser system at relatively low liquid and gas flow rates during gas-oil transportation, possibly causing unexpected damage to the production facilities. Experiments with...
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Article
The Radiation and Diffraction of Water Waves by a Bottom-Mounted Circular Cylinder in a Two-Layer Fluid
An analytical method was proposed to analyze the radiation and diffraction of water waves by a bottom-mounted circular cylinder in a two-layer fluid. Analytical expressions for added mass and dam** coefficie...
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Article
The wave forces and moments on a floating rectangular box in a two-layer fluid
A comprehensive set of computational formulations is presented for the hydrodynamic forces on a floating rectangular box in a two-layer fluid by matching eigen functions of the interior and exterior problems. ...
