A CFD study of the behavior of a crew transfer vessel in head seas using OpenFOAM

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Abstract

Crew transfer vessels (CTV) were a fast means of transportation, providing inspection and maintenance services by transferring technicians from shore to offshore structures. These vessels had been designed to be efficient and effective at high speeds, though this means the ship motions were highly sensitive to the sea conditions. Accordingly, it was critical to be able to estimate a ship’s response among different wave conditions in the time domain. In this study, a Computational Fluid Dynamics (CFD) method was used for the analysis of Fluid-Structure interactions with a crew transfer vessel as a case study. The CFD codes were formulated to solve the unsteady Reynolds-Averaged Navier–Stokes equations using the finite-volume method with OpenFOAM, an open-source CFD software program. OpenFOAM offered high accuracy of ship motion predictions and high resolution of infield flow phenomena, taking into consideration both viscous and rotational effects in the flow and free surface waves. A comprehensive uncertainty analysis was presented, including verification and validation studies. The cases performed demonstrate that the results were found to be in good agreement with the available experimental results and showed the importance of a seakeeping analysis for such vessels.
Original languageEnglish
Number of pages13
Publication statusPublished - 16 Sep 2021
Event2nd International Conference on Ship and Marine Technology - Istanbul, Turkey
Duration: 16 Sep 202117 Sep 2021

Conference

Conference2nd International Conference on Ship and Marine Technology
Abbreviated titleGMO-SHIPMAR 2021
Country/TerritoryTurkey
CityIstanbul
Period16/09/2117/09/21

Keywords

  • CFD (computational fluid dynamics)
  • Crew Transfer Vessel (CTV)
  • ship motion
  • turbulence

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