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IJPR International Journal of Physical Research E-ISSN 2307-9010

Developing a Computer Program for Mathematical Investigation of Stepped Planing Hull Characteristics

Abstract

Few authors have investigated the behavior of stepped planing hulls, so far. However, effects of such hulls on planing craft performance indicate that it can be a great improvement and must be analyzed more precisely. For this purpose, a mathematical model which was previously developed based on Savitsky’s formulation is implemented and the performance of a specific stepped planing hull is studied. Furthermore, a computer program is developed and effects of various parameters on stepped planing hull performance are investigated. Based on the obtained results, it is concluded that different heights of step leads to large variation of required power for the planing hull. Moreover, it can be mentioned that the parametric studies which are conducted in this article can be a good guide for engineering at initial design of a stepped planing hull.


Authors and Affiliations

  • Afshin Loni Amirkabir University of Technology, Iran
  • Parviz Ghadimi Amirkabir University of Technology, Iran
  • Hashem Nowruzi Amirkabir University of Technology, Iran
  • Abbas Dashtimanesh Amirkabir University of Technology, Iran

About this article

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Author Biography

  • Parviz Ghadimi, Amirkabir University of Technology, Iran
    I am an Associate Professor of Hydromechanics and the Associate Chair of Education in the Dept. of Marine Technology at Amirkabir University of Technology.

References

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View more references (6)

[6] Shoemaker, J. M. "Tank Tests Of Flat and V-Bottom Planing Surfaces", Report NACA TN 509, Washington, D.C. (USA), 1934.

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[8] Savitsky, D., "Hydrodynamic Design of Planning Hulls", Marine Technology, Vol. 1, No. 1, pp. 71-95. 1964.

[9] Savitsky, D., Brown, P.W., "Procedures for Hydrodynamic Evaluation of Planning Hulls in Smooth and Rough Water", Marine Technology, Vol. 13, No. 4, pp. 381-400. 1976.

[10] David Svahn, "Performance Prediction Of Hulls With Transverse Steps”, Master Thesis, Marina System Centre for Naval Architecture, KTH University, June 2009.

[11] William R. Garland, Kevin J. Maki, "A Numerical Study of a Two-Dimensional Stepped Planing Surface", Journal of Ship Production and Design, Vol. 28, No. 2, pp. 60-72, May 2012.


How to Cite

Loni, A., Ghadimi, P., Nowruzi, H., & Dashtimanesh, A. (2013). Developing a Computer Program for Mathematical Investigation of Stepped Planing Hull Characteristics. International Journal of Physical Research, 1(2), 34-47. https://doi.org/10.14419/ijpr.v1i2.839