BOUSS-2D: A Boussinesq Wave Model for Coastal Regions and Harbors

Nwogu, Okey; Demirbilek, Zeki

doi:10.21236/ada400294

Cited by 46 publications

(46 citation statements)

References 33 publications

(50 reference statements)

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“…Wave breaking and runup were initially implemented in the manner of Chen et al (2000). Robustness of the runup model was improved by making modifications similar to the implementation used in Nwogu & Demirbilek, (2001), where the beach is treated as a porous medium, rather than slots. One of the main differences is the introduction of an increased friction/drag coefficient in the porous medium, which serves to stabilize the flow in the porous region.…”

Section: Resultsmentioning

confidence: 99%

Synoptic Estimates of Waves and Currents via Real-Time Assimilation of In-Situ Observations

Walker¹,

Haller²

2003

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The long-term goal of this effort is to develop a methodology to monitor near-shore waves and currents over large spatial scales using data from in-situ sensors. OBJECTIVESThe proposed program will develop the capability of monitoring nearshore waves and currents over large scales, and will allow the timely use of information from in-situ sensors. The specific objectives to be addressed are to: 1. Develop a near-real-time capability for assimilating single-or multiple-point in-situ observations into a phase-resolving wave model; 2. Test and validate the methodology against both simulated data and archival field data for both simple and complex beach types; and 3. Conduct a full-scale test of the methodology by applying it in near-real time to a comprehensive field experiment on complex topography. APPROACHThe procedure being developed makes use of a variational data assimilation capability for the extended-Boussinesq wave model of Wei et al. (1996). The approach is to use time-series data from instruments in the interior of a region to estimate the time-dependent boundary conditions for the Boussinesq model at the boundaries of the region. These boundary conditions will yield a Boussinesqmodel prediction, which matches the data. WORK COMPLETEDThe work completed during the past fiscal year includes development of the mathematical framework for the assimilation procedure, improvements in the numerical implementation of the extended Boussinesq model and its adjoint, and addition of improved wavemaker and run-up models in the parallel Boussinesq code.

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Section: Resultsmentioning

confidence: 99%

Synoptic Estimates of Waves and Currents via Real-Time Assimilation of In-Situ Observations

Walker¹,

Haller²

2003

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“…Based on the monitoring results of the existing T-groins and the modeling results, Phase II of the erosion control project has been designed to create a transition between the T-groins in Cell 1 and the sand bypass attachment bar at Cell 3 (Figure 9) where the limited sand supply from natural bypassing occurs. Sensitivity analysis of the predicted shoreline response to various breakwater parameters was done using the Boussinesq wave model Bouss2D (Nwogu and Demirbilek, 2001) for detailed wave-structure interaction and the NLINE model for long-term beach response.…”

Section: Performance and Design Of Erosion Control Structuresmentioning

confidence: 99%

Evaluation of Inlet Management Practices at Navigation Inlets in Southwest Florida, Usa

Dabees¹,

Moore²

2011

Int. Conf. Coastal. Eng.

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This paper describes numerical modeling of long-term evolution of inlet systems in southwest and central Florida. The paper discusses a general methodology developed following four case studies and application to the case study of Gordon Pass in southwest Florida. The case study of Gordon Pass demonstrates the importance of considering large temporal and spatial scales in evaluating morphologic response to inlet management practices. The results describe the evolution of Gordon Pass from 1930 to present. The analysis begins with natural conditions that existed before dredging or inlet modifications and investigates how inlet evolution can be influenced by navigation improvements and provides tools to evaluate alternatives.

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“…Examples of these models include MIKE21 (www.dhigroup.com), FUNWAVE (Kirby et al 1998), BOUSS-2D (Nwogu and Demirbilek 2001), and COULWAVE (Lynett and Liu 2002). BOUSS-2D was applied in the present study because it has robust algorithms for calculation of waves in inlets and harbors, and shallowwater nonlinear wave processes in the vicinity of submerged and surfacepiercing structures.…”

Section: Wave Modeling Strategymentioning

confidence: 99%

“…For this purpose, BOUSS-2D was used for calculating pertinent wave processes. BOUSS-2D is a phase-resolving, half-plane model and is appropriate for simulating nonlinear wave propagation in the nearshore in the time domain (Nwogu and Demirbilek 2001;Demirbilek et al 2005aDemirbilek et al , 2005bDemirbilek et al 2007aDemirbilek et al , 2007b. It is based on the 2D Boussinesq equations implemented in a finite-difference solution scheme.…”

Section: Wave Modeling Approachmentioning

confidence: 99%

Wave Modeling for Jetty Rehabilitation at the Mouth of the Columbia River, Washington/Oregon, USA

Demirbilek¹,

Lin²,

Nwogu³

2008

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BOUSS-2D: A Boussinesq Wave Model for Coastal Regions and Harbors

Cited by 46 publications

References 33 publications

Synoptic Estimates of Waves and Currents via Real-Time Assimilation of In-Situ Observations

Synoptic Estimates of Waves and Currents via Real-Time Assimilation of In-Situ Observations

Evaluation of Inlet Management Practices at Navigation Inlets in Southwest Florida, Usa

Wave Modeling for Jetty Rehabilitation at the Mouth of the Columbia River, Washington/Oregon, USA

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