...ABSTRACT ABSTRACT The performance of the overset meshing tool implemented in the opensource Computational Fluid Dynamics (CFD) software OpenFOAM© is investigated in this work. The method is validated against experimental results of free decay tests of a freely-floating vertical cylinder...

...-Kutta method was used for time integration of the mooring simulation. Comparing to the fluid and motion simulation, very small time step size (1×105 s) was used for the mooring simulation because of numerical stability. RESULTS AND DISCUSSION To validate the two-way coupled solver, the decay tests...

... vessel also moored with side-by-side configuration, the roll motion characteristic of LNG-BS should be studied to avoid collision between ships. herm test natural period lng test condition time series ship gas monetization excitation device decay test decrement estimation method roll...

... test campaign mooring system simulation jonkman upstream oil & gas wind turbine goupee wind energy decay test orcaflex subsea system validation verification yaw stiffness moordyn test data robertson configuration modeling capability model configuration stiffness modeling...

... heave decay test floater response amplitude operator renewable energy compartment subsea system displacement natural period simulation mooring system rigid body model turbine multibody model Multibody Modelling of Floating Offshore Wind Turbine Foundation for Global Loads Analysis Lucie...

... Abstract The paper presents CFD simulations of a platform encompassing heave plates and which is dedicated to floating wind turbine. Forced oscillating tests and decay tests of the floater, along both heave and pitch degrees of freedom, are performed with the CFD tool OpenFOAM. Simulations aim...

... wind conditions. And this phenomenon may be attributed to the decrease of the jackup's yaw motion stiffness. In addition, several suggestions are proposed for optimizing the mooring system performance. white noise test jackup moored fender decay test force 12 subsea system sea state yaw...

... amplitudes (or A/D). The damping coefficients could be obtained through a decay test. During the decay test, the buoyancy can system is first excited through an external sinusoidal lift force at the specific modal frequency. After a period of time (1,000 seconds in our case), the system vibration...

...) to provide data to calibrate and validate a full-scale simulation model. The data gathered include measurements from static load tests and free-decay tests, as well as a suite of tests with wind and wave forcing. The FAST simulation software developed by NREL is used, and a full-scale FAST model...

... as to corresponding decay tests. The prediction of the hydrodynamic loads is based on CFD solutions of the Navier-Stokes equations by the finite volume approach, neglecting in a first approximation the influence of turbulence modeling. In order to solve the pertinent free-surface problem the method considers only...

... on the preliminary hammering tests and decay tests. model test nonlinear reservoir characterization procedure structural model calculation global hydroelastic ship response comparison backbone equation simulation artificial intelligence conversion matrix torsion numerical model internal section...

... was first assumed to be locked. The two sections were forced to move together as a single rigid body. The locked single-body model was used in a heave decay test that validated the RANS result with the experimental measurement. For the two-body floating-point absorber simulation, the two sections were...

... the riser tensioners that compensate for platform motions - in this instance there is no captured mass, little or no riser mass moves ver- tically with the platform. The model natural period and damping ratio of surge, sway, heave, roll, pitch and yaw identified from decay tests are summarized in Table 2...

... of the floating structure and possible coupling, mostly with heave, roll and pitch motions are likely to occur. Evaluation of the flow in the bay and below is also of major interest for the design and the distribution of the aircans fixed to the upper part of the risers as tensionning floats. Decay tests...

... loading condition roll amplitude anti-roll device subsea system roll natural period fpso radiation roll motion decay test stationary vessel equation amplitude bilge keel reynolds number coefficient natural period ship initial angle dimension swell condition floating...

... good agreement with measurements. decay test catamaran shear force trondheim hull flexible mode investigation wet deck rigid body motion interaction frequency structural response prediction test model wave loading rigid body mode natural period Proceedings of the Eighth (1998...

... Loading System) designed by Ugland Engineering. The OLS is a flexible pipe tensioned by a submerged buoy in a steep S configuration. normal chain table coefficient conclusion decay test tank line tension chain table heave loading tower year storm model test air gap buoy pretension...