Showing papers in "Journal of Ocean Engineering and Science in 2020"

TL;DR: In this article, the sine-Gordon equation method is modified to deal with variable-coefficient systems containing imaginary parts, such as nonlinear Schrodinger systems, which are of considerable importance in many fields of research including ocean engineering and optics.

TL;DR: In this paper, the generalized (G'/G)-expansion method was used to construct exact solutions for conformable fractional nonlinear partial differential equations (PDEs) using generalized expansion.

TL;DR: In this paper, an approximate analytical solution for the system of three fractional differential equations describing the lakes pollution using q-homotopy analysis transform method (q-HATM) was proposed.

TL;DR: In this paper, an oil spill occurred in the Al Khafji region by applying Sentinel 1 SAR-C images, which is on the borderline between Saudi Arabia and Kuwait in the Persian Gulf and it is detected as an unbiased zone.

TL;DR: In this paper, the authors presented a novel multi-single/dual-phase-lag model to investigate the thermo-elastic diffusion behavior of the medium in an isotropic half-space.

TL;DR: In this article, a double (G′/G, 1/G) -expansion method was used to derive abundant closed-form wave solutions of the generalized shallow water wave equation.

TL;DR: In this article, the exact solutions of nonlinear water wave equations (NLWWEs) in oceans through the invariant subspace scheme (ISS) were derived, and the stability analysis for the NLWWE was investigated through the linear stability scheme.

TL;DR: In this article, the wave model SWAN is implemented for the Canadian Beaufort Sea and storm generated waves are investigated through comparisons between in situ buoy observations and numerical simulations, using SWAN's non-stationary and two-dimensional modes in a fine resolution nested domain within a coarse resolution domain.

TL;DR: In this article, the effect of fifth order dispersion on soliton propagation was investigated in the variable coefficient nonlinear Schrodinger equation with variable coefficient GVD and fifth-order dispersion in the inhomogeneous optical fiber.

TL;DR: The efficiency of PSO algorithm to improve the ANFIS model accuracy is indicated and gathered data sets by National Data Buoy Center at Lake Michigan are used to evaluate the developed models for prediction of wave parameters.

TL;DR: In this article, the weak-form integral equation method (WFIEM) and special functions are combined to solve the TPBVP problem with integral terms, and a robust and applicable numerical scheme is presented.

TL;DR: Key parameters held a stronger influence in the overall state of the components and proved in most cases strong correlations amongst sensor data from the same equipment, which showed a great potential to serve as inputs for developing a predictive model.

TL;DR: In this paper, the results from numerical analyses with focus on structural performance accounting for seabed topology, and investigation of energy formulae for application in calculation of grounding damage are presented.

TL;DR: In this paper, the performance of a Tidal Current Turbine (TCT) is modelled in using Computational Fluid Dynamic (CFD) and coupled Fluid Structure Interaction (FSI) simulations to compare the predictions of both models.

TL;DR: In this paper, the flow structure at the wake of the bluff body with altered blockage ratio (BR) keeping the fixed aspect ratio (AR) was studied by a finite volume technique using commercial software Ansys-Fluent.

TL;DR: It is observed that under certain condition, the flexible pontoon-type WEC with lesser connection joints is more effective in generating energy as compared to its rigid counterpart with higher connection joints.

TL;DR: In this article, the effect of electromagnetic field on general model of the equations of the generalized thermoelasticity reinforcement of the deformation of a micropolar generalized thermelastic medium was studied.

TL;DR: In this article, a symmetric conformable differential operator (SCDO) was proposed for a class of water wave dynamical equation type time-space fractional complex Ginzburg-Landau equation.

TL;DR: In this paper, the authors report a gauge of the all-out number of plastic particles and their weight gliding on the planet's seas from 24 endeavours (2007-2013) over every one of the five subtropical gyres, coastal Australia, Bay of Bengal and the Mediterranean Sea directing surface net tows (N = 1,680) and visual review transects of huge plastic flotsam and debris (N= 1,891).

TL;DR: In this article, the authors study an experiment using a horizontal gravity separator by previous researchers and perform computational fluid dynamics (CFD) simulations on the same geometry under similar conditions, and the simulation results show qualitative agreement with the experiments of previous researchers.

TL;DR: The method is shown to be reliable and practical for identifying steady state parts of time series data, and can serve as a practical preprocessing tool for time seriesData analysis.

TL;DR: In this paper, the authors proposed a mathematical model to investigate how to compute and analyze the tsunami wave parameters and the retrieval of its early warning using remote sensing technique to improve the detection rate.

TL;DR: In this article, the role of open boundary conditions, tidal forcing and tide filtering techniques in a coastal ocean model using a split-explicit time marching scheme with horizontal resolutions of O(1km) and its effect in coastal sea level dynamics and ocean currents was assessed.

TL;DR: In this paper, a new source function of turbulence kinetic energy is proposed at the interface based on flow condition and the results of simulation have a good agreement with experimental data and turbulence characteristic can be captured near the free surface.

TL;DR: In this paper, a numerical simulation of air-ventilated water flows was carried out for the previously tested simplified hull form with an air cavity formed behind a step, and it was established that a sufficiently fine numerical mesh needed to be generated at the cavity re-attachment to the hull and the sharpening treatment of the air-water interface must be included.

TL;DR: In this article, the two dimensional problem of water wave scattering past a thick rectangular barrier in the presence of thin ice cover is investigated and the numerical solutions of reflection and transmission coefficients are obtained for different parametric values.

TL;DR: Options for a more intuitive physical modality of ROV's interface are explored, and a trade-off analysis was conducted by developing a weighted ranking system based on the supporting and opposing arguments and the design's intuitiveness.

TL;DR: In this article, an unstructured mesh has been developed to simulate both steady and unsteady flow conditions over a spillway, where different hydraulic parameters such as water depth profile, velocity, Froude number, shear stress were calculated and presented in detail for both scenarios.

TL;DR: In this article, a design methodology of permanent magnet generators used for fixed-pitch tidal turbines in a marine renewable energy context is presented to optimize the generator design taking into account the turbine power limitation for high tidal currents velocities.

TL;DR: A system has been proposed which can be used underwater as remotely operated underwater vehicle for submerged survey for different purposes and structure and advancement of the vehicle comprised of actualizing a mechanical and electrical framework, just as the reconciliation of subsystems.