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 Fact Sheet
US Army Corps of Engineers
U.S. Army Engineer Research and Development Center
January 2004
Public Affairs Office
3909 Halls Ferry Road
Vicksburg, MS 39180-6199
(601) 634-2504
http://www.wes.army.mil
Improved Numerical Modeling of Vessel Hydrodynamics and Sedimentation
Effects on Waterways
terway easier and faster. The hydrodynamic/sedimentation model will require less setup and
computing time for evaluating navigation and environmental impacts.
Background: The Corps is charged with assessing environmental quality on its navigation pro-
jects. The effects of moving vessels must be quantified and mitigated. Corps investigators pres-
ently calculate the effects of a vessel sailing through a waterway using a numerical program de-
veloped by Berger and Stockstill, HIVEL2D. While this model has proven to be successful in
addressing many vessel effects issues, it is computationally limited
due to longer setup and computing times than are necessary. Also,
the numerical program does not directly include sedimentation
effects. This work will move the concept of a moving pressure field
that currently exists in HIVEL2D into the new modern ADH
(Adaptive Hydraulic) program. Furthermore it will make the vessel
movement algorithm available to all shallow water models. In
short, this work will cut the cost and time of studies for the impact
of vessels in confined waterways.
began the development of a vessel movement library that can track
several vessels within a numerical water body. This has been
completed and is now available. The implementation of this vessel
libary in combination with the ADaptive Hydraulics shallow water
model will allow investigators to automatically produce accurate
grids as these vessels move about in the waterway. This portion of
the study has been completed and is undergoing testing.
The figure shows two views of the same area as a vessel move into a bay from a confined chan-
nel. The top graphic contains the grid while the vessel is above the bay and the second as the
vessel enters the bay. The mesh is automatically refined as is necessary to accurately caputre the
hydrodynamics associated with the vessel.
Points of Contact: For additional information, please contact Dr. R. C. Berger at 601-634-2570
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