Create Your Own Riemann Solver (With Python)
Published in
7 min readAug 13, 2023
In today’s recreational coding exercise, we create an exact Riemann Solver for the Euler equations. The solver finds the solution for the time evolution of the 1D shock structure in a fluid with an initially discontinuous Left and Right state. It can be integrated into finite volume codes to make flux calculations less diffusive and be used as a numerical benchmark solution too.
You may find the accompanying Python code on GitHub.
Before diving in, below is a gif of what running our interactive solver looks like:
