MPI-AMRVAC  3.1
The MPI - Adaptive Mesh Refinement - Versatile Advection Code (development version)
MPI-AMRVAC 3.0 Demo simulations

Demos

A set of Demo simulations, all found in our tests/demo folder

2D linear advection of the VAC-logo, and particle sampling

Our favorite density pattern in the VAC-logo shape gets diagonally advected, while we sample the solution in three locations.

Demos To top of page

2D Reaction-Diffusion Gray-Scott evolution

A 2D reaction-diffusion PDE system shows self-replicating spot formation.

Demos To top of page

1D hydro Shu-Osher test

This 1D hydro test shows a shock impinging on a sinusoidally varying density region. We demonstrate how varying reconstructions/limiters handle especially the compressed density variation trailing the right-ward moving shock.

Demos To top of page

2D hydro Kelvin-Helmholtz evolution

A 2D pure hydro evolution of an initially sharp-interfaced shear layer: with the identical initial setup and only changing the reconstruction/limiting strategy, qualitative differences appear in resolving density fine-structure.

Demos To top of page

2D gas-dust coupled Kelvin-Helmholtz simulation

A similar setup, but now with dynamically coupled gas-dust species, where the coupling strength parameter varies (top row to bottom row, increasing the coupling). Left panels show the gas evolutions, right panels the dust species.

Demos To top of page

2D hydro Thermal instability and runaway

This test shows how thermal instability driven by radiative losses in a 2D hydro setup can evolve towards a runaway condensation followed by a fragmentary, dynamically adjusting multiphase medium. Note how the slowly evolving gradual thermal imbalance suddenly changes into collapse and further erratic behavior.

Demos To top of page

2D MHD Alfven shock

Here we let an Alfven (intermediate) shock hit a density variation containing Alfven's image. Three different flux schemes produce overall consistent end results, also involving a corrugated shock front.

Demos To top of page

2D MHD Tilt instability

Only varying the numeric magnetic monopole control in a 2D MHD test: we find consistent evolutions of an ideal MHD tilt instability, where the finite resistivity causes chaotic islands to form in the final reconnecting stages.

Demos To top of page

Charged particle motion

In the central region of the tilt setup from above, the current density variation shows lots of fine-structure, and this could be an ideal site for particle acceleration. Here we show how we trace particle dynamics in a fixed snapshot from that simulation.

Demos To top of page