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The flow near the bow of a steadily turning ship

Published online by Cambridge University Press:  29 March 2006

Miguel Hiroo Hirata
Miguel Hiroo Hirata
Affiliation:
COPPE, Universidade Federal do Rio de Janeiro, C.P. 1191-ZC-00, Rio de Janeiro 20.000, Brazil
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Abstract

The flow near the bow of a steadily turning ship is analysed using a modified slender-body theory. The rate of change of flow quantities in the longitudinal (x) direction is assumed to be greater than that implied by ‘conventional’ slender-body theory. As a consequence some features of high Froude number flow are apparent which cannot be predicted by the ‘conventional’ theory. The modified slender-body theory proposed requires the solution of a two-dimensional Laplace equation (in y and z) but its free-surface condition still involves an x derivative. A Fourier-transform method is used to solve this problem. A simple bow configuration of constant draft is analysed and numerical results for the free-surface elevation are presented.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 71 , Issue 2 , 23 September 1975 , pp. 283 - 291
Copyright
© 1975 Cambridge University Press

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