104 research outputs found

    CFD Simulation of PMM Motion in Shallow Water for the DTC Container Ship

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    International audienceThis paper is devoted to the validation exercises with the ISIS-CFD code conducted for the test cases proposed for the MASHCON conference. CFD simulations have been performed for the 4 different pure yaw and pure sway test cases under shallow water condition. Predicted results are compared with the measurement data provided by FHR

    Numerical study of VIV over a flexible riser

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    This study is based on the simulation of the fluid-structure interaction on risers. We aim to quantify the structural response of these long flexible pipes, used for the extraction of offshore petroleum when they are subjected to marine currents. Toe occurring phenomenon is known as VIV (Vortex induced VIbration). These problems are a relevant challenge for several offshore companies, which are associated with K-Epsilon in a Citeph project. Toe project's goal is to use the FSI simulation tool developed by K-Epsilon and initially used for the simulation offlexible membranes such as sails, to model these VIV phenomena. Toe problem of VIV in the case of a riser is a strongly coupled problem, meaning that the added mass is not negligible compared to the mass of the structure. This can be challenging for most fluid-structure interaction software. A strongly coupled algorithm is presented [6]. First, numerical results of fluid around cylinders are presented and compared to experimental results ([l], [10]) with several turbulence models, and time step sizes. Toen, Chaplin's benchmark is presented with experimental / numerical comparison [3]

    Numerical Prediction of response Characteristics of a Vortex-Excited Cylinder

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    Numerical simulation of flow around a simplified car body

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    Numerical Simulation with DES Approach for Automotive Flows

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    Numerical Simulation with DES Approach

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    Numerical Simulation of Flow around a Generic Pickup Truck with ISIS-CFD

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    Numerical and experimental analysis of unsteady separated flow behind an oscillating car model

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    A numerical simulation of the response of a vortex-excited cylinder

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