Flexible CFD meshing strategy for prediction of ship resistance and propulsion performance
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초록
In the present study, we conducted resistance test, propeller open water test and self-propulsion test for a ship’s resistance and propulsion performance, using computational fluid dynamics techniques, where a Reynolds-averaged Navier-Stokes equations solver was employed. For convenience of mesh generation, unstructured meshes were used in the bow and stern region of a ship, where the hull shape is formed of delicate curved surfaces. On the other hand, structured meshes were generated for the middle part of the hull and the rest of the domain, i.e., the region of relatively simple geometry. To facilitate the rotating propeller for propeller open water test and self-propulsion test, a sliding mesh technique was adopted. Free-surface effects were included by employing the volume of fluid method for multi-phase flows. The computational results were validated by comparing with the existing experimental data.
Abstract
In the present study, we conducted resistance test, propeller open water test and self-propulsion test for a ship’s resistance and propulsion performance, using computational fluid dynamics techniques, where a Reynolds-averaged Navier-Stokes equations solver was employed. For convenience of mesh generation, unstructured meshes were used in the bow and stern region of a ship, where the hull shape is formed of delicate curved surfaces. On the other hand, structured meshes were generated for the middle part of the hull and the rest of the domain, i.e., the region of relatively simple geometry. To facilitate the rotating propeller for propeller open water test and self-propulsion test, a sliding mesh technique was adopted. Free-surface effects were included by employing the volume of fluid method for multi-phase flows. The computational results were validated by comparing with the existing experimental data.
참고문헌 (9)
- Chao, Y, "Numeric Propulsion Simulation for the KCS Container Ship", Proceedings of CFD workshop Tokyo 2005, pp.539~545 (2005)
- Hrvoje Jasak, "OpenFOAM : Open source CFD in research and industry", International Journal of Naval Architecture and Ocean Engineering, 1(2), pp.89~94 (2009), 대한조선학회
- 김문찬, "Comparative study on the performance of pod type waterjet by experiment and computation", International Journal of Naval Architecture and Ocean Engineering, 2(1), pp.1~13 (2010), 대한조선학회
- Kim, J, "RANS Computations for KRISO Container Ship and VLCC Tanker using the WAVIS code", Proceedings of CFD workshop Tokyo 2005, pp.598~603 (2005)
- Lee, J.H, "Hybrid Meshing Approach for Resistance Performance Prediction of a POD Propulsion Cruise Ship", Proc. of ASCHT09, 2nd Asian Sympo. on Computational Heat Transfer and Fluid Flow (2009)
- Lübke,L., "Numerical simulation of the Flow around the propelled KCS", Proceedings of CFD workshop Tokyo 2005, pp.587~592 (2005)
- 서대원, "A Numerical study for the efficacy of flow injection on the diminution of rudder cavitation", International Journal of Naval Architecture and Ocean Engineering, 2(2), pp.104~111 (2010), 대한조선학회
- Tahara, Y, "Comparison of Free-Surface Capturing and Tracking Approaches in Application to Modern Container Ship and Prognosis for Extension to Self-Propulsion Simulator", Proceedings of CFD workshop Tokyo 2005, pp.604~611 (2005)
- Yang, J, "Propulsive Performance of a Tanker Hull Form in Damaged Conditions", Ocean Engineering, 36(2), pp.133~144 (2009)