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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)
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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.
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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%
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US Army Corps of Engineers Engineer Research and Development Center Navigation R&D FY09 Product Development Non-hydrostatic two-phase RANS
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US Army Corps of Engineers Engineer Research and Development Center Navigation R&D FY09 Product Development Free surface flows around vessels and coastal structures
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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
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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.
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