Ferry Wake Wash Analysis in San Francisco Bay
Publication: Ports 2007: 30 Years of Sharing Ideas: 1977-2007
Abstract
The present paper describes the analysis of ferry wake wash along a proposed route between San Francisco and a new ferry terminal at Hercules. The steady wave field generated by a candidate catamaran ferry was calculated for a range of vessel speeds and water depths, using established computational fluid dynamics (CFD) techniques. The matrix of cases analyzed span the range of vessel speeds (5 to 35 knots) and water depths (3 to 32 m) anticipated for ferry service along the proposed route. The free-wave spectra which fully characterize the ship-generated wave system in the far field are also calculated and presented, including for shallow-water cases. The calculated ferry wakes and the free-wave spectra enable the propagation and transformation of the wave system into the far field over varying bathymetry, so that the impact of ferry wakes on the shoreline may be studied. The analysis is part of a broader "shoreline and biological response" approach to wake wash impact analysis. The approach contains site-specific elements, but the process may also be applied to evaluate wake wash impact of specific, yet-to-be-built ferries on other future routes.
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Copyright
© 2007 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Analysis (by type)
- Bays
- Coastal engineering
- Coasts, oceans, ports, and waterways engineering
- Computational fluid dynamics technique
- Engineering fundamentals
- Ferries
- Fluid dynamics
- Fluid mechanics
- Frequency analysis
- Hydraulic engineering
- Hydraulic structures
- Hydrologic engineering
- Ports and harbors
- Ships
- Shoreline protection
- Shores
- Water and water resources
- Water management
- Water supply
- Water use
- Wave generation
- Wave spectrum
- Waves (fluid mechanics)
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