1. US Army Corps of Engineers Engineer Research and Development Center Navigation R&D High Fidelity Vessel Effects PI: Chris Kees and Matthew FarthingJanuary 2006 Problem: Existing models cannot simulate fully three-dimensional breaking waves, moving vessels, or wind/wave interaction. Funding, by FY –FY06 - $300K– FY08 - $300K –FY07 - $300K– FY09 - $213K TNs, JP’s, Software, Presentations, etc. –CHETN-XIII-2, CMAME, TR-09-10, TR-09-11, TR-09-12 –PyADH –CMWR, AGU, MARINE2009, Brown Bag, LSU/UNC/UT… Collaborators: (ERDC, Districts, other agencies, academia) –Jeff Melby(CHL), Mike Briggs(CHL), Stacy Howington (CHL) –Clint Dawson (U. Texas), Yuri Bazilevs (U. California), Cass Miller (UNC)

2. US Army Corps of Engineers Engineer Research and Development Center Navigation R&D Completed Products PyADH is a parallel solver for systems of nonlinear PDEs. It supports a range of advanced numerical methods, formulations, and simulation capabilities –multiscale finite element methods (06), high-order DG approximations (07) –level-set approximations (06), immersed interface (08) and moving mesh (09) representations for vessels and structures –efficient and robust algorithms for running simulations on desktop workstations and high-performance computing platforms (07). –runtime visualization (06), fast/portable data archiving (08) PyADH is currently being used as a research tool at ERDC and by academic groups –UT researchers (Dawson’s group) are using the 2P-RANS, SW, and DW models to investigate parameterizations and upscaling of free-surface flows through vegetation. –UTEP researchers (Argaez, Velazquez) are using the potential flow model to investigate model-order reduction techniques. –UNC researchers (Miller’s group) are using PyADH to investigate numerical methods for nonlinear, multiphase flow and transport systems. –Countermine phenomenology program is using PyADH to investigate air-water flows through porous media.

3. US Army Corps of Engineers Engineer Research and Development Center Navigation R&D FY09 Activities Product 1: Milestone 1: TR: Numerics and test set for hyperbolic equations. Completed 15 Feb 09.Numerics and test set for hyperbolic equations Milestone 2: TR: Numerics and test set for Navier-Stokes equations. Completed 15 Feb 09.Numerics and test set for Navier-Stokes equations Product 2: Unstructured 3D, Moving Vessel Model, 30 Sep 2009 90% Milestone 3: JP: Extended abstract on level set methods. Completed 15 March 09 Milestone 4: TR:Numerical model and test set for RANS models of air/water/vessel/structure interactions. 30 Sep 2009 75% Milestone 5: Two- and three-dimensional numerical RANS model for air/water/vessel/structure interactions. 30 Sep 2009 75% Unstructured 3D, Two-Phase RANS Model, 30 Sep 2009 90%

4. US Army Corps of Engineers Engineer Research and Development Center Navigation R&D FY09 Product Development Non-hydrostatic two-phase RANS

5. US Army Corps of Engineers Engineer Research and Development Center Navigation R&D FY09 Product Development Free surface flows around vessels and coastal structures

6. US Army Corps of Engineers Engineer Research and Development Center Navigation R&D Product 1: 3D Tow Tank Simulator Milestone 1: PyADH release 1.0.0 with integrated with ADH. 15 March 2010. Milestone 2: Workshop on high-fidelity two- and three-phase flow modeling. 15 May 2010. Product 2: 3D Wave Tank Simulator FY10 Proposed Activities

7. US Army Corps of Engineers Engineer Research and Development Center Navigation R&D Technology Transfer Plan ADH integration and design workshop planned for October 2009. Some tools and methods have already been incorporated into ADH or other ERDC codes –Velocity post-processing has been adapted into a stand-alone tool for ERDC unstructured FEM codes. –PETSc-based linear solver and preconditioning has been incorporated into ADH. –Our high-performance data storage approach has been incorporated into a version of ADH. –Numerical methods and formulation for stabilized CG approximations are being used for air-water flow in porous media. –ADH website, version control system, and online documentation system are based on our design, implementation, and administration.