NSmultigrid

A multigrid Navier Stokes solver

Phase 1

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1. Write a NS solver using FDM, use it to solve LDC, Backward facing step.
2. Use external Libraries for linear systems
3. Build it in a way we can use grids and transformations
4. Use VTK for outputs and Jason for inputs.

Phase 2

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Include a multiphase module/Immersed Boundary module