Two-Dimensional Numerical Model of the Gulf Intracoastal Waterway near New Orleans
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 138, Issue 3
Abstract
Two-dimensional tidal flows within the Lake Pontchartrain–Lake Borgne area (Louisiana) are simulated to assess the effects of the surge protection structure on the Gulf Intracoastal Waterway (GIWW) on navigation conditions. The region of interest is modeled with a shallow-water, depth-averaged, finite-element model. The water levels and discharge are analyzed at a location in the GIWW to ascertain model behavior. It is shown that the presence of the structure produces infrequent increases in velocities in the GIWW, which can be mitigated by a proposed structure near Lake Pontchartrain.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The experiments described and the results presented were obtained from research sponsored by the USACE Hurricane Protection Office and the U.S. Army ERDC, Coastal and Hydraulics Laboratory. Permission was granted by the Chief of Engineers to publish this information.
The authors would like to specifically acknowledge Maj. Jeremy Chapman, U.S. Army, and Ms. Angela Desoto-Duncan, USACE Hurricane Protection Office, without whose support this work would not have been possible. The authors would also like to gratefully acknowledge Dr. Zeki Demirbilek for his helpful comments.
References
Berger, R. C., Tate, J. N., Brown, G. L., and Savant, G. (2010). Guidelines for solving two dimensional shallow water problems with the ADaptive Hydraulics (ADH) modeling system, U.S. Army Corps of Engineers, Engineering Research and Development Center, Vicksburg, MS.
Demirbilek, Z., Bratos, S. M., and Thompson, E. F. (1993). “Wind products for use in coastal wave and surge models.” Miscellaneous Rep. CERC-93-7, U.S. Army Engineer Waterways Experiment Station, Coastal Engineering Research Center, Vicksburg, MS.
McCuen, R. H., Knight, Z., and Cutter, A. G. (2006). “Evaluation of the Nash-Sutcliffe efficiency.” J. Hydrosci. Hydraul. Eng., 11(6), 597–602.
Pawlowicz, R., Beardsley, B., and Lentz, S. (2002). “Classical tidal harmonic analysis including error estimates in MATLAB using T_TIDE.” Comput. Geosci., 28(8), 929–937.CGEODT
Rodi, W. (1993). “Turbulence models and their application in hydraulics: A state of the art review.” International Association for Hydraulic Research, Delft, Netherlands.
Savant, G., Berger, R. C, McAlpin, T. O., and Tate, J. N. (2010). “Intelligent adaptive time step control for modeling rapidly evolving hydrodynamic flows in adaptive hydraulics.” ERDC TN-SWWRP-10-6, U.S. Army Corps of Engineers, System Wide Water Resources Program, Vicksburg, MS.
Tate, J. N., Berger, R. C., and Stockstill, R. L. (2006). “Refinement indicator for mesh adaption in shallow-water modeling.” J. Hydraul. Eng., 132(8), 854–857JHEND8.
U.S. Army Corps of Engineers New Orleans District. (2008a). “Flood Insurance Study: Southeastern parishes, Louisiana. Intermediate Submission 2: Offshore water levels and waves.” Rep. Prepared for FEMA, Region 6, U.S. Army Corps of Engineers, Vicksburg, MS.
U.S. Army Corps of Engineers New Orleans District. (2008b). Integrated final report to congress and legislative environmental impact statement for the Mississippi River-Gulf Outlet Deep-Draft Deauthorization Study, U.S. Army Corps of Engineers, Vicksburg, MS.
Willmott, C. J., et al. (1985). “Statistics for the evaluation and comparison of models.” J. Geophys. Res.JGREA2, 90(C5), 8995–9005.
Wu, J. (1969). “Wind stress and surface roughness at air-sea interface.” J. Geophys. Res.JGREA2, 74(2), 444–455.
Information & Authors
Information
Published In
Copyright
© 2012. American Society of Civil Engineers.
History
Received: Oct 18, 2010
Accepted: Jul 29, 2011
Published online: Jul 30, 2011
Published in print: May 1, 2012
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.