Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
권호 표지
DOI QR코드

DOI QR Code

COMPUTATION OF FLOW AROUND A SHIP USING A SURFACE INTERPOLATED FROM STATION LINES

선체 횡단면 곡선 보간에 의한 표면 생성 및 유동 계산

  • Kim, Hyun-Sik (Department of Naval Architecture and Marine Systems Engineering, Pukyong National University) ;
  • Shin, Sangmook (Department of Naval Architecture and Marine Systems Engineering, Pukyong National University)
  • 김현식 (부경대학교 조선해양시스템공학과) ;
  • 신상묵 (부경대학교 조선해양시스템공학과)
  • Received : 2015.09.09
  • Accepted : 2015.11.30
  • Published : 2015.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

Flow field around the KRISO 3600TEU container ship is computed using a surface generated based on interpolations of station lines, which are given in a body plan of the ship, without using any CAD program. An interpolation method is suggested based on inscribed circles to generate curves between two neighboring station lines. The interpolated surface is saved in a STL format to use the snappyHexMesh utility of the openfoam. Computed resistance of the ship is compared with experimental and other computational results and the effects of the interpolation of neighboring station lines on the computed resistance are investigated. The suggested method is applied to calculate the flow field around a submarine with appendages. The surface triangulations for the hull and the appendages are generated without consideration of each other, then those surface triangulations are simply combined to provide a grid generator with the body boundary. The junctures of the hull and the appendages are identified automatically during the grid generation procedure. Tip vortex is captured, which travels downstream from the tip of the appendages.

Keywords

References

  1. 2006, Patel, P.S., Marcum, D.L. and Remotigue, M.G., "Automatic CAD model topology generation," International Journal for Numerical Methods in Fluids, Vol.52(8), pp.823-841. https://doi.org/10.1002/fld.1166
  2. 2009, Nanduri, J.R., Pino-Romainville, F.A. and Celik, I., "CFD mesh generation for biological flows: Geometry reconstruction using diagnostic images," Computers & Fluids, Vol.38(5), pp.1026-1032. https://doi.org/10.1016/j.compfluid.2008.01.027
  3. 2002, Wang, Z.J. and Srinivasan, K., "An adaptive Cartesian grid generation method for 'Dirty' geometry," International Journal for Numerical Methods in Fluids, Vol.39(8), pp.703-717. https://doi.org/10.1002/fld.344
  4. 2012, Marchandise, E., Piret, C. and Remacle, J.F., "CAD and mesh repair with Radial Basis Functions," Journal of Computational Physics, Vol.231(5), pp.2376-2387. https://doi.org/10.1016/j.jcp.2011.11.033
  5. 2015, Park, I.R., "A Volume of Fluid Method for Free Surface Flows around Ship Hulls," Journal of Computational Fluids Engineering, Vol.20, No.1, pp.57-64. https://doi.org/10.6112/kscfe.2015.20.1.057
  6. 2012, Park, S., Park, S.W., Rhee, S.H., Lee, S.B., Choi, J.E. and Kang, S.H., "CFD Code Development for the Prediction of the Ship Resistance using Open Source Libraries," Journal of Computational Fluids Engineering, Vol.17, No.2, pp.21-27. https://doi.org/10.6112/kscfe.2012.17.2.021
  7. 2007, Kim, B.N., Park, J.H. and Kim, W.J., "Calculation of Flows around Container Ship Models with Different Reynolds Numbers," Journal of the Society of Naval Architects of Korea, Vol.44, No.3, pp.285-266. https://doi.org/10.3744/SNAK.2007.44.3.285
  8. 2012, Moctar, O., Shigunov, V. and Zorn, T., "Duisburg Test Case: Post-Panamax Container Ship for Benchmarking," Ship Technology Research, Vol.59, No.3, pp.50-64.
  9. 2013, Kinaci, O.K., Kukner, A. and Bal, S., "On Propeller Performance of DTC Post-Panamax Container Ship," International Journal of Ocean System Engineering, Vol.3, No.2, pp.77-89. https://doi.org/10.5574/IJOSE.2012.3.2.077
  10. 2001, Kim, W.J., Van, S.H. and Kim, D.H., "Measurement of flows around modern commercial ship models," Experiments in Fluids, Vol.31, No.5, pp.567-578. https://doi.org/10.1007/s003480100332