flow2d-rs

Computational fluid dynamics library written in Rust

flow2d_rs.mp4

Backward facing step

Cylinder cross flow

Lid-driven cavity

Features

2D viscous incompressible Newtonian fluid flow
Solve Navier-Stokes equations using Euler's Method on staggered grid
Solve Poisson equation with Successive Over-relaxation method
Calculate and visualize pressure, speed and stream function
Different types of boundary conditions:
- Moving no-slip boundary condition
- Free slip boundary condition
- Inflow and outflow condition
Planned features:
- Contour plot for stream function
- Free boundary value simulation
- HDF5 data export
- Use other method to solve Poisson equation (possibly Multigrid)
- Optimize to run on GPU
- Energy/Heat flow simulation
- Extension to 3D
The theory and algorithm can be found in Numerical simulation in fluid dynamics: a practical introduction[1]

  git clone https://github.com/1n0r1/flow2d-rs.git
  cd flow2d-rs
  cargo run --example gui

Refer to ./src/presets.rs for setting up other simulations.

Add flow2d_rs as a dependency in your Cargo.toml

flow2d_rs = "0.1.0"

[1] Michael Griebel, Thomas Dornseifer, and Tilman Neunhoeffer. 1998. Numerical simulation in fluid dynamics: a practical introduction. SIAM