Difference between revisions of "Blatter-Pattyn Boundary Conditions"
From Interactive System for Ice sheet Simulation
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Boundary conditions + masking, one sided differences, basal BC (no-slip, viscous, and plastic behavior all through Beta^2 implementation) | Boundary conditions + masking, one sided differences, basal BC (no-slip, viscous, and plastic behavior all through Beta^2 implementation) | ||
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| + | NEED: sfc and basal BC description from HO model descrip. doc | ||
TO DO: add links from previous pages discussing BP equations and BP numerical solution | TO DO: add links from previous pages discussing BP equations and BP numerical solution | ||
| − | Sliding over a plastic bed | + | |
| + | == Sliding over a plastic bed == | ||
<math>\begin{align} | <math>\begin{align} | ||
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\end{align}</math> | \end{align}</math> | ||
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| + | figures here showing the results for simple ice stream setup ... | ||
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[[Image:plastic_bed1.jpg]] | [[Image:plastic_bed1.jpg]] | ||
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[[Image:plastic_bed2.jpg]] | [[Image:plastic_bed2.jpg]] | ||
Revision as of 22:41, 30 July 2009
Boundary conditions + masking, one sided differences, basal BC (no-slip, viscous, and plastic behavior all through Beta^2 implementation)
NEED: sfc and basal BC description from HO model descrip. doc
TO DO: add links from previous pages discussing BP equations and BP numerical solution
Sliding over a plastic bed
![\begin{align}
& x:\quad \left[ 2\tau _{xx}\left( b \right)+\tau _{yy}\left( b \right) \right]\frac{\partial b}{\partial x}+\tau _{xy}\left( b \right)\frac{\partial b}{\partial y}-\tau _{xz}\left( b \right)=-\tau _{bx} \\
& \quad \quad \quad \quad \quad \quad \quad \quad \quad \tau _{bx}\approx \tau _{0} \\
& x:\quad \quad \quad \quad \quad \quad \quad ...\quad \quad \quad \quad =-\tau _{0}\left( \frac{u}{\left| \mathbf{u} \right|} \right) \\
& x:\quad \quad \quad \quad \quad \quad \quad ...\quad \quad \quad \quad =-\tau _{0}\left( \frac{u}{\sqrt{u_{0}^{2}+v_{0}^{2}+\gamma }} \right) \\
\end{align}](/isis/images/math/8/2/e/82ed5742bcba61fbab4786804a3cca86.png)
figures here showing the results for simple ice stream setup ...
