Abstract
Surface waves generated by a moving ship in water of finite depth are affected by the rheological properties of the movable bottom. The aim of this work is to evaluate the wave resistance exerted on a hovercraft modeled as a two-dimensional pressure distribution moving on the free surface of water with nonrigid bottom. Analysis of three-dimensional flows in two-fluid layers of finite depths is performed by assuming an inviscid upper layer (water) and a viscous lower layer (nonrigid bottom). Numerical calculations show that the maximum wave resistance occurs in the vicinity of the critical Froude number F=1. This maximum value decreases as the muddy bottom becomes less rigid.
Original language | English |
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Pages (from-to) | 1461-1478 |
Number of pages | 18 |
Journal | Ocean Engineering |
Volume | 28 |
Issue number | 11 |
DOIs | |
State | Published - 15 Jun 2001 |
Keywords
- Muddy bottom
- Viscous flows
- Wave resistance