README.md

Incompressible Couette flow between two cylinders, with the inner one rotating at a constant angular speed.

Msh files in conc_circle_geoms generated with gmsh

4 main components -

1. Operator discretization for pressure Poisson with all Neumann boundary conditions in Grid.cpp
2. Multigrid preconditioned GMRES/ ILU-GMRES solvers in FracStepMultirid.cpp
3. Fractional Step procedure in fractionalStepGrid.cpp
4. Main file which generates the simulation in FractionalStepSim.cpp

Compile using make all

Theoretical formulation given in JCP_Paper.pdf in the root directory