List of my CFD solvers that are publicly available:
AMR-Solver: Block-based Octree AMR grid flow solver
Parallel-Poisson-Solver: Poisson equation solver with MPI parallelization
U3D-VOF-SG-Solver: 3D solver two-phase flows
UPDATE: I developed these solvers in 2014-16. Feel free to use them at your own risk!
For more codes, see Github.