Final Report: Efficient Multiscale Computation with Improved Momentum Flux Coupling via Operator-Splitting and Probabilistic Uncertainty Quantification

Number of Papers published in peer-reviewed journals: Number of Papers published in non peer-reviewed journals: Final Report: Efficient Multiscale Computation with Improved Momentum Flux Coupling via Operator-Splitting and Probabilistic Uncertainty Quantification Report Title Because of the significantly increased computational burden and difficulties with vertically-refined grids in very shallow water, essentially all surges modeling in applications has utilized depth-averaged models to specify coastal surges, even in cases where accuracy is absolutely critical. Although several studies have examined cases in areas with complicated bathymetry, no one has conduction detailed analyses of the suitability of depth-averaged models for typical open-coast areas, which often tend to be relatively slowly varying spatially. Our work here should be recognized as a step toward an eventually moreuniversal applicability; however, as our point of departure, we will focus on situations which represent the most significant risks in most coastal areas along the Gulf and Atlantic coasts of the United States. The propagation of the coastal surges inland, interacting with inland hydrologic flows represents the dominant flood-producing hazard in these areas. It is likely that our work can be extended and the work here should be considered as a starting point for such generalization. (a) Papers published in peer-reviewed journals (N/A for none) Enter List of papers submitted or published that acknowledge ARO support from the start of the project to the date of this printing. List the papers, including journal references, in the following categories: (b) Papers published in non-peer-reviewed journals (N/A for none) 1. Xuesheng Qian, Himangshu Das, Flow Structure of Submarine Debris Flow, Coastal Sediment '15, San Deigo, CA, May 11-15, 2015 2. Robert W. Whalin, Himangshu S. Das, Thomas W. Richardson, Donald L. Hendon, Nakarsha Bester and Chris Herron, Ike Dike: A Concept to Protect Galveston Island and Houston Metropolitan Area from Devastating Hurricane Surges, Southeastern Symposium for Contemporary Engineering Topics and University of New Orleans-Engineering Forum, Sept. 19, 2014 (c) Presentations Received Paper