Author: Jørgen S. Dokken

Repository for a simple BDF2 IPCS solver for the Navier-Stokes equations with an implicit Adam-Bashforth linearization and a Temam device.

Installation

The code in this repository require GMSH, including Python interface, DOLFINx and tqdm.

There are various ways to install these packages.

Docker

You can use the pre-build docker image ghcr.io/jorgensd/dolfinx_ipcs:v0.7.0 from here

Taylor-Green benchmark

To run the 2D Taylor-Green benchmark, run ipcs.py. Use

python3 ipcs.py --help

for command-line options.

DFG 3D benchmark

The resolution of the mesh can be changed by modifying the lc variable in cfd.geo

To generate the mesh from the geo file, run

python3 create_and_convert_3D_mesh.py

Run

python3 create_and_convert_3D_mesh.py --help

for command-line options.

To solve the problem, run

python3 DFG_benchmark.py --3D

DFG 2D-3

To generate a mesh for the 2D problem, run

python3 create_and_convert_2D_mesh.py --help

for command-line options.

The problem is solved by running

python3 DFG_benchmark.py