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Numerical Study of a Semi-Displacement Ship at High Speed

[+] Author Affiliations
Hui Sun, Odd M. Faltinsen

Norwegian University of Science & Technology, Trondheim, Norway

Paper No. OMAE2010-20565, pp. 703-709; 7 pages
  • ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering
  • 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 3
  • Shanghai, China, June 6–11, 2010
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4911-8 | eISBN: 978-0-7918-3873-0
  • Copyright © 2010 by ASME


A numerical analysis of a semi-displacement ship at high forward speed is performed by using a 2D+t theory. Time dependent two-dimensional (2D) boundary value problems are solved in space-fixed vertical planes by a Boundary Element Method (BEM). The steady advancing of the ship in the calm water is simulated, although the theory is also capable of solving the unsteady problem with forced oscillations in heave and/or pitch. The numerical results for the steady motions are compared with Keuning’s experiments [1]. The sectional vertical forces along the ship and the wave elevation around the ship hull are presented. The effects of non-viscous flow separation and the three-dimensional effects at the transom stern are discussed.

Copyright © 2010 by ASME
Topics: Displacement , Ships



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