Comprehensive vessel hydrodynamics model for prediction of sinkage mooring forces, bank hydrodynamic effects and coastal impacts
Fenical, S.W.; Carter, J.D. (2009). Comprehensive vessel hydrodynamics model for prediction of sinkage mooring forces, bank hydrodynamic effects and coastal impacts, in: Eloot, K. et al. (Ed.) International Conference on Ship Manoeuvring in Shallow and Confined Water: Bank Effects. pp. 23-29 In: Eloot, K.; Vantorre, M. (Ed.) (2009). International Conference on Ship Manoeuvring in Shallow and Confined Water: Bank Effects. Flanders Hydraulics Research/Ghent University/The Royal Institution of Naval Architects: London. ISBN 978-1-905040-46-9. IX, 152 pp., more |
| Available in | Authors | | Document type: Conference paper
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| Authors | | Top | - Fenical, S.W.
- Carter, J.D.
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| Abstract | Extension of waterways and larger, faster-moving deep-draft vessels have created difficult maneuvering conditions and have increased impacts to moored vessels as well as structures and shorelines along port areas. Modern port facilities require application of advanced numerical modeling tools to aid in the effective planning of maneuvering, mooring systems, and shoreline protection to mitigate or minimize impacts to navigation, other vessels, or the environment. The Vessel Hydrodynamics Longwave Unsteady (VH-LU) numerical model system was developed to analyze these complex vessel hydrodynamic problems. The VH-LU model’s theoretical and computational bases were previously described in Fenical (2006).
The VH-LU model is based on a finite-volume approach for solving the time-domain nonlinear shallow water equations (NSWE) and Boussinesq equations on either structured or fully unstructured grids. Both moving and stationary vessels are incorporated into the simulations using hull forms input as finite-difference grids, allowing any vessel or object shape to be incorporated into the simulation. The vessels are either stationary or move through the domain by user-prescribed temporally and spatially variable routes, speeds and accelerations. Developed as part of a coastal engineering hydrodynamic system, the VH-LU model also includes structured or fully unstructured simulation of ambient flows, water level fluctuations, ambient waves, sediment transport, bottom morphology, and water quality using a suite of stateof- the-art algorithms.
Previous publications have described the VH-LU system validation of water level and velocity fluctuations generated by pressure fields with field measurements as well as berthed vessel loading verification exercises performed using physical model data. The present paper provides a summary of these validations and modeling system improvements for predicting sinkage of passing vessels (validated using empirical formulations), validation of hydrodynamic effects on shallow banks and preliminary non-dimensional predictions of maneuvering force effects from laboratory studies. |
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