20101118-Fachgespraech.tex

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\title{Computing free surface flows}

\author{Jed Brown}


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% - Keep it simple, no one is interested in your street address.
\institute[ETH Z\"urich]
{
  Laboratory of Hydrology, Hydraulics, and Glaciology \\
  ETH Z\"urich
}

\date[2010-11-18]{Fachgespr\"ach 2010-11-18}

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\subject{Talks}


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  \frametitle{Outline}
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\section{Motivation}
\input{slides/GroundingLine/BindschadlerNaturalHistory.tex}
\input{slides/GroundingLine/SchoofRetreat.tex}
\input{slides/GroundingLine/Sensitivity.tex}
\input{slides/GroundingLine/MeshDependence.tex}
\input{slides/GroundingLine/ThwaitesPIG.tex}
\input{slides/GroundingLine/YPlus.tex}

\section{ALE Formulation}
\input{slides/GroundingLine/ALEFormulation.tex}
%\input{slides/Dohp/Resolution.tex}
\input{slides/GroundingLine/ALEBlockForm.tex}
\input{slides/Dohp/StokesScaling.tex}

\section{Conservation}
\input{slides/InfSup/Stabilized.tex}

\section[Slip]{Slip boundary conditions on bumpy surfaces}
\input{slides/GroundingLine/Normals.tex}

\section[Hydrostatic]{A robust multigrid solver for the hydrostatic equations}
\input{slides/THI/Equations.tex}
\input{slides/THI/X5kmClip.tex}
\input{slides/THI/Y5kmClip.tex}
\input{slides/THI/WhatAboutSplitting.tex}

\begin{frame}{Outlook}
  \begin{block}{}
    \begin{itemize}
    \item Exact local conservation is critical for problems with discontinuous geometry and coefficients
    \item Nonlinear slip on irregular surfaces is hard but tractable (mostly)
    \item Smooth manufactured solutions are necessary, but not sufficient to study solver and discretization performance
    \item Need good software to combine relaxation for loosely coupled processes and factorization
      for stiff/indefinite coupling
    \item Modeling of boundary layer processes in highly anisotropic geometry likely requires conforming to the interface
    \end{itemize}    
  \end{block}
  \begin{block}{Tools}
    \begin{itemize}
    \item PETSc\ \url{http://mcs.anl.gov/petsc}
      \begin{itemize}\item ML, Hypre, MUMPS
      \end{itemize}
    \item ITAPS \url{http://itaps.org}
      \begin{itemize}\item MOAB, CGM, Lasso
      \end{itemize}
    \end{itemize}
  \end{block}
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