Advection
How to define Eulerian formulation with advection, and different order advection is comparison.
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This is a Lagrangian model of a bar that is plastically deformed at one end. To generate plastic deformation *INITIAL_STRESS_SOLID command is used. Input deck A is just a preparation for decks B and C, with which you can study how well the advection schemes preserve the shapes of the history variable fields.
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In input deck B an Eulerian formulation with 1st order advection is used. As it travels through the bar, the plastic strain field is stretched and its maximum value decreases.
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In input deck C an Eulerian formulation with 2nd order advection is used. Distortion of the plastic strain field is now much less in comparison with 1st order advection.
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