Fluid Simulator

Fluid Simulation in C++ and OpenGL by Sean Holloway

For more information, see the full write-up here.

Overview

This project is a two-dimensional fluid dynamics simulator capable of modeling the dynamics of two mixed fluids, including convection and advection via the Navier-Stokes equations, molecular diffusion via Fick's law, thermal diffusion via Fourier's law, and both density-based and thermal buoyancy. The original method was based on the paper "Real-Time Fluid Dynamics for Games" (Stam, 2003), with modifications for thermal and buoyancy dynamics. External libraries used:

Niels Lohmann's "JSON for Modern C++"
Omar Cornut's "Dear ImGui"
Paul Macklin's "EasyBMP" (Video export build only) The simulation outputs to an OpenGL-based GUI, allowing for real-time control of sources and physical parameters.

Building

The simulator was built in Ubuntu 20.04 LTS, and currently is only set up to build for linux.

Standard Build:

Dependencies:

GLFW
GLEW

The following commands can be used to install all dependencies:

sudo apt update && sudo apt upgrade -y
sudo apt install build-essential cmake git libglfw3-dev libglew-dev -y

Build steps:

git clone https://github.com/HollowaySean/FluidSimulator.git
cd FluidSimulator
mkdir build
cd build
cmake ..
make

Export Build: