Awesome
MAC-taichi
A MAC (Marker-And-Cell) solver written in Taichi. More details of the MAC method could be found in its original paper "Numerical Calculation of Time Dependent Viscous Incompressible Flow of Fluid with Free Surface" by Francis H. Harlow and J. Eddie Welch.
Requirements
- Taichi
- Matplotlib
You can install the requirements either by the following command
python3 -m pip install taichi matplotlib
or by using the requirements.txt file
python3 -m pip install -r requirements.txt
The lid-driven cavity case
Lid-driven cavity is a common validation case used by CFD solvers.
How to run
Simply run the mac.py script through Python
python3 mac.py
and you should see the following GUI animation
<p style="text-align:center;"><img src="./fig/video.gif" width="180"></p>Results
Below are the contour plots of the velocity magnitude for Re = 100, Re = 400 and Re = 1000 at steady state, respectively.
| Re = 100 | Re = 400 | Re = 1000 |
|---|---|---|
 |  |  |