README.md

Simple Bubbly Flow Solver

Overview

This library numerically solves the motion of two-liquid mixtures separated by free surfaces using finite-difference and volume-of-fluid methods.

Specifically, it aims to simulate air-water flows characterized by contrasts in density and viscosity at high (in terms of the direct numerical simulations) Reynolds numbers.

Quick Start

Fetch Source

git clone --recurse-submodules https://github.com/NaokiHori/SimpleBubblyFlowSolver
cd SimpleBubblyFlowSolver

Initialize Flow Fields (Requires Python3 with NumPy)

cd initial_condition
make output
sh main.sh
cd ..

Build and Run

make output
make all
sh exec/main.sh

This simulates the motion of a 2D rising bubble:

Documentation

The governing equations, numerical methods employed, and discretizations are briefly discussed here.

3D Version

Check out the 3d branch. You will need to initialize the flow fields manually.

Acknowledgement

I would like to acknowledge Dr. Kevin Zhong for fruitful discussions regarding the viscosity formulation.