CFD modeling of 2D asymmetric entry impact along with horizontal velocity

Authors

  • Roberto Algarín Department of Mechanical Engineering. Universidad del Norte. Barranquilla, Colombia.
  • Antonio Bula Department of Mechanical Engineering. Universidad del Norte, Barranquilla, Colombia.
  • Oscar Tascón Research, Development and Innovation Direction. Science and Technology Corporation for the Development of the Naval, Maritime and Riverine Industry in Colombia. Km 9, Via Mamonal. Cartagena D. T., Colombia.

DOI:

https://doi.org/10.25043/19098642.54

Keywords:

2D Impact, CFD modeling, asymmetric entry, keel flow separation

Abstract

The 2D impact phenomenon in calm water, considering asymmetric entry and asymmetric entry withhorizontal velocity is studied. The analysis was performed by using a commercial CFD software (STARCCM+©). The results obtained from the simulations are: pressure distribution, force and roll moment.The study was carried out for typical planing boat sections. Furthermore, the critical conditions requiredfor flow separation from the keel are also determined. The results are compared with models and resultsobtained from some authors and they present very good agreement.

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References

ALGARIN, R. "Modelamiento del impacto en dos dimensiones de secciones asimétricas con velocidad horizontal con aplicaciones en el diseño de botes de Planeo". [M.Sc. thesis]. Barranquilla: Universidad del Norte. Programa de ingeniería Mecánica, 2010. 120p.

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XU, L., TROESCH, A., AND VORUS, W. "Asymmetric Vessel Impact and Planing Hydrodynamics". Journal of Ship Research, No. 3, Vol. 42, September 1998, p. 187-198.

CD-ADAPCO. ‘Star-CCM+ Version 3.06.006 User Guide’, 2008.

JUDGE C. AND TROESCH A. "Asymmetry and horizontal velocity during water impact", [on-line]. Available at: http://www.eng. t au. a c . i l /~g r e g /ABST.pd f /jud g e .pd f / judgeWWWFB2.pdf, 2000.

TOYAMA Y. "Two-dimensional water impact of unsymmetrical bodies". Journal of Soc. Naval Arch. Japan. Vol. 173, 1993, p. 285-291.

XU, G.D. "Numerical simulation of oblique water entry of an asymmetrical wedge". Journal of Ocean Engineering. Vol. 35, August 2008, p. 1597-1603.

YOON, B.S. Flow Separation At The Initial Stage Of The Oblique Water Entry Of a [on- line]. Available at: http://www.iwwwfb. org/Abstracts/iwwwfb24/iwwwfb24_53.pdf, 2009.

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Published

2011-07-23

How to Cite

Algarín, R., Bula, A., & Tascón, O. (2011). CFD modeling of 2D asymmetric entry impact along with horizontal velocity. Ship Science & Technology, 5(9), 99–106. https://doi.org/10.25043/19098642.54

Issue

Vol. 5 No. 9

Section

Scientific and Technological Research Articles

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