China Ocean Engineering
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Experimental Study on Conversion Characteristics of Dual-Mode OWC Models Appropriate for Voyaging
China Ocean Engineering - Tập 37 - Trang 247-257 - 2023
Freely movable wave energy converters (WECs) will greatly improve their
adaptability to the marine environment. In this paper, a dual-mode oscillating
water column (OWC) WEC with potential sailing capability is proposed. By opening
and closing a gate on the side facing the waves, the WEC converts wave energy in
the vertical duct (called VD mode) with low sailing resistance or in the
backward bend ...
Effect of under connected plates on the hydrodynamic efficiency of the floating breakwater
China Ocean Engineering - Tập 28 - Trang 349-362 - 2014
In this paper, the hydrodynamic efficiency of a floating breakwater system is
experimentally studied by use of physical models. Regular waves with wide ranges
of wave heights and periods are tested. The efficiency of the breakwater is
presented as a function of the wave transmission, reflection, and energy
dissipation coefficients. Different parameters affecting the breakwater
efficiency are inves...
Penetration Depth of Torpedo Anchor in Two-Layered Cohesive Soil Bed by Free Fall
China Ocean Engineering - Tập 32 - Trang 706-717 - 2018
The penetration depth of torpedo anchor in two-layered soil bed was
experimentally investigated. A total of 177 experimental data were obtained in
laboratory by varying the undrained shear strength of the two-layered soil and
the thickness of the top soil layer. The geometric parameters of the anchor and
the soil properties (the liquid limit, plastic limit, specific gravity,
undrained shear streng...
Numerical analysis of hydrodynamic behaviors of two net cages with grid mooring system under wave action
China Ocean Engineering - - 2012
Study on far field wave patterns and their characteristics of Havelock form green function
China Ocean Engineering - Tập 27 - Trang 283-298 - 2013
A new mathematical integral representation including five integrals about the
far field wave shape function of Havelock form translating-pulsating source is
obtained by performing variable substitution. Constant-phase curves and
propagation wave patterns are investigated by applying stationary phase analysis
method to the new representation. Some findings are summarized as follows: (1)
when 0< τ <...
Model of shipping noise in the deep water: Directional density and spatial coherence functions
China Ocean Engineering - Tập 30 - Trang 591-601 - 2016
The shipping noise properties in the deep ocean are studied. Shipping noise
exhibits the strong dual-horned directionality features in the flat-seabed
ocean, and its directional density can be modeled by a Von Mises distribution.
With the explicit expression for the directional density function, the spatial
coherence functions of shipping noise are also derived, and the relative
features are studi...
Coupling Effects of A Deep-Water Drilling Riser and the Platform and the Discharging Fluid Column in An Emergency Disconnect Scenario
China Ocean Engineering - Tập 34 - Trang 21-29 - 2020
As drilling operations move into remote locations and extreme water depths,
recoil analysis requires more careful considerations and the incidence of
emergency disconnect is increased inevitably. To accurately capture the recoil
dynamics of a deep-water riser in an emergency disconnect scenario, researchers
typically focus on modelling the influential subsystems (e.g., the tensioner,
the mud disch...
Study on the high precision acoustic measurement techniques for determining temperature field around seafloor hydrothermal vent
China Ocean Engineering - - 2012
Uncertainty and sensitivity analyses of the simulated seawater-freshwater mixing zones in steady-state coastal aquifers
China Ocean Engineering - Tập 29 Số 4 - Trang 489-502 - 2015
Torsional Response Analysis of Flexible Pipe Based on Theory and Finite Element Method
China Ocean Engineering - Tập 37 - Trang 190-203 - 2023
As key components connecting offshore floating production platforms and subsea
imports, offshore flexible pipes play significant roles in oil, natural gas, and
water injection. It is found that torsional failure is one of the failure modes
of flexible pipes during transportation and laying. In this paper, a theoretical
model (TM) of a flexible pipe section mechanics is established, in which the
ca...
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