Gerris Examples
Gerris is a CFD solver for partial differential equations that represent fluid flow. Gerris solves the Navier–Stokes equations in 2 or 3 dimensions, allowing to model industrial fluids (aerodynamics, internal flows, etc.) or for instance, the mechanics of droplets, thanks to an accurate formulation of multiphase flows (including surface tension). It also provides features releavnt to geophysical flows like ocean tides, tsunamis, river flows etc. Gerris uses finite volume method scheme to solve the equations.
Given below are some examples of Gerris simulations on Rescale's platform - ScaleX. With simple workflows, Gerris simulations can be run on ScaleX to improve run times.
Gerris 2D Example
This is an example of a 2D viscous flow simulation with Gerris on Rescale.
Visualization of tracer field dynamics in a viscous fluid
Import Job Setup Get Job Results
| Simulation Code | Gerris 12.06.13-2D |
| Analysis Type | CFD |
| Description | 2D viscous flow around a heated cylinder. A fluid is flowing at a constant velocity from the left in a channel bounded by solid walls on the top and bottom. After the initial formation of vortices, a Benard-von Kármán vortex street is formed in the wake of the cylinder. |
| Suggested Hardware | Titanium / 1 cores |
| Command | mkdir images; gerris2D heated-pics.gfs >out.log |
| Estimated Run Time | 8 minutes |
Gerris 3D Example
This is an example of 3D airflow simulation with Gerris on Rescale.
Visualization of turbulent flow around a vessel
Import Job Setup Get Job Results
| Simulation Code | Gerris 12.06.13-3D |
| Analysis Type | CFD |
| Description | Turbulent air flow around a vessel. Wind of composite directions is blowing at a constant velocity on the vessel. An input file specifies the inflow wind conditions, geometry of the vessel, and stress conditions at the sea surface. |
| Suggested Hardware | Titanium / 1 cores |
| Command | mkdir images; gerris3D tangaroa.gfs > output.log |
| Estimated Run Time | 154 minutes |
Gerris Parallel Example
This is an example of 3D flow on Gerris, showing its parallelization capabilities.
Import Job Setup Get Job Results
| Simulation Code | Gerris 12.06.13-3D |
| Analysis Type | CFD |
| Description | Gerris 3D example using multiple cores. |
| Suggested Hardware | Titanium / 4 cores |
| Command | ./run.sh 4 |
| Estimated Run Time | 42 minutes |