Abstract
The objective of this paper is to study the physics of flow around the JBC (Japan Bulk Carrier) using different CFD methods and the open source toolkit (OpenFOAM). The computations were performed for a one-phase flow with a doubled body model using URANS k-ω SST, hybrid IDDES, and hybrid LeMoS turbulence models. A verification and validation procedure was performed for integral time-averaged forces acting on the ship and rotating propeller. The main point of this paper is the prediction of turbulent parameters in the wake. The turbulence kinetic energy was compared with measurements in different cross sections along the hull. Hybrid URANS/LES simulations have demonstrated superiority over URANS ones for the computation of the turbulence kinetic energy. The flow physics in the wake of full block ships, which can be reproduced only by scale resolving techniques, is discussed. Finally, the unsteady forces on a rotating propeller MP.687 working behind the JBC hull are determined.
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The support of the authors by the German Research Foundation (Deutsche Forschungsgemeinschaft) under the Grants AB 112/10-1 and INST 264/113-1 FUGG is gratefully acknowledged.
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Kornev, N., Abbas, N. Vorticity structures and turbulence in the wake of full block ships. J Mar Sci Technol 23, 567–579 (2018). https://doi.org/10.1007/s00773-017-0493-3
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DOI: https://doi.org/10.1007/s00773-017-0493-3