... effect cover area floating production storage and offloading discretization fpso time-history heave motion equation motion response arrangement semi-submersible platform dike Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5...

... derivation demonstrates that, unlike the finite volume technique, which requires additional equations to ensure conservation, this method naturally meets the geometric conservation law (GCL). However, due to the error of numerical discretization, Persson et al. (2009) transformed the grid into a fixed...

.... We employed a fractional-split (pressure projection) method for the pur- HIRAC VALIDATION pose of temporal discretization. This commences by computing the in- A number of metrics were used to determine the performance of a VoF termediate velocity u from: advection scheme. The shape or geometric...

... upstream oil & gas computational domain constant slope wave propagation flow in porous media simulation morphological simulation beach reservoir characterization discretization ripple wave period leftheriotis numerical result numerical model morphological evolution sediment...

... numerical simulation renewable energy wave-induced load discretization experimental study wind velocity wave tank input parameter simulation numerical model wind energy surface elevation tank shear force direct effect giovanangeli maximum envelope line force Preliminary Numerical Study...

... ABSTRACT For the assessment of experimental measurements of focused wave groups impacting a surface-piecing fixed structure, we present a new Fully Nonlinear Potential Flow (FNPF) model for simulation of unsteady water waves. The FNPF model is discretized in three spatial dimensions (3D) using...

... both spatial finite element and time finite difference discretization. Dynamic equilibrium of wind-force induced rotational moment onto the rotor system and electromagnetic rotational moment from the generator nacelle assembly is described and consistently introduced into the 3D beam dynamics approach...

... is the Coriolis coefficient, and C f is the friction coefficient. gerris equation mesh run adaptive mesh refinement adaptive mesh run tsunami runup modeling resolution performance indicator discretization strategic planning and management water level coefficient nonadaptive run...

... compatibility condition vector discretization multiple node solver boundary condition geometry continuity condition simulation application grilli equation A hybrid solver based on efficient BEM-potential and LBM-NS models: recent BEM developments and applications to naval hydrodynamics Amin...

... surface conditions, written in semi-Lagrangian form. The hull is represented as a three dimensional rigid body subjected to the action of gravity and hydrodynamic forces. The spatial discretization of the ?uid dynamic problem is carried out by means of an iso-parametric collocation Boundary Element...

... of using solitary wave paradigm as well. In Fig. 1 the records of the 2011 Japan Tohoku tsunami clearly show that solitary wave is not long enough when compared to the observed leading tsunami wave with the same amplitude. tsunami bottom motion dutykh discretization wave generation solitary...

... are applied to discrete the governing equation, and Level Set method is adopted to track the top level of mud column during mud falling and seawater refilling. Also, a whole fluid column model is introduced as a contrast. Case calculation shows variations of flow velocity, acceleration, fluid pressure...

...) and the forcing term f. The kinematic viscosity is The Navier-Stokes equations (Eq. 1) are discretized on an Arakawa C- grid. The second-order finite-volume discretization of the continuity equation at th n + 1) is given by M0uh(n+1) = - M uh(n+1), (2) where M0 acts on the interior of the domain and M...

... of each sample points. Third, we discretize the simulation data and perform attribute reduction using rough set theory. Finally, design sub-spaces where the optimal solutions belong are derived using rough set theory. The results show that: the proposed method can significantly improve hull form...

..., the simulation is repeated in such a way, that undesired wave reflections at both the domain boundaries and the wave-maker are minimized. From the comparison, it is possible to separately assess the influence of wave reflections at the wave-maker as well as at the wave tank boundaries. discretization...

... Abstract We present a model for ship hydrodynamics simulations currently under development at SISSA. The model employs potential flow theory and fully nonlinear free surface boundary conditions. The spatial discretization of the equations is performed by means of a collocation BEM. This gives...

... is described by nodal coordinates in a local Lagrangian coordinate system. The nodal coordinates are accordingly used for the representation of the flow field within the pipe along its complete suspended length. The flow field is discretized by applying an appropriate Finite Volume Scheme while a Realizable k...

... This paper describes CFD of incompressible air-water flows by solving Euler equations with a two phases flow model leading to an hyperbolic system of conservation laws solved with a finite volume discretization on unstructured grids. An artificial compressibility approach allows a fully explicit...

... simulation tools are extended to allow for simulation including those structures and subsequently they are comprehensively tested. wind turbine load case 5 platform design renewable energy discretization offshore projects planning and execution calculation simulation approach owt artificial...

... The development of a periodic boundary layer and time discretization in a sloshing flow is examined using a CFD model. The boundary layer is found to vary significantly throughout the simulation and depth of penetration is an indication for required grid resolution. Time step size is varied...