# Praveen Chandrashekar

## Centre for Applicable Mathematics, TIFR, Bangalore

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# Some of my codes

This is a list of my codes most of which are freely available. A more complete list can be found on my github, bitbucket and gitlab pages.

## Codes for teaching

The following repos contain codes I have developed for teaching purpose.

• python: A short introduction to Python relevant for numerical analysis courses that I teach.
• na: Codes for a numerical analysis course
• nla: Codes for a numerical linear algebra course
• numpde: Codes for computational pde course: finite difference, finite volume
• chebpy: Based on Trefethen: Spectral Methods in Matlab, rewritten in python
• fem: Codes for a finite element course
• fem50: A simple FEM code for 2-d poisson equation written in matlab
• juliafem: A simple FEM code for 2-d poisson equation written in Julia
• parallel: Some examples of parallel computing : MPI, openmp, petsc

## Finite volume Codes

• fvm2d: 2-D vertex-based finite volume code on triangular grids with Spalart-Allmaras turbulence model.
• euler2d: A 2-D inviscid, compressible, finite volume code together with an adjoint solver. It uses triangular grids and automatic differentiation (Tapenade).
• flo2d: Vertex-centroid finite volume scheme on triangular grids for inviscid and viscous flows
• flo3d: Vertex-centroid finite volume scheme on tetrahedral grid for inviscid and viscous flows
• nuwtun: 2/3-D structured grid, cell-centered, finite volume code for Euler/NS equations. Also has adjoint in 2-D.
• gFoam: Godunov FV code based on OpenFoam
• UG3: 3-D unstructured grid finite volume code for compressible flows

## Codes

• deal.II: My finite element codes written using deal.II library
• DG code using deal.II
• dflo: 2-D DG Euler code using deal.II
• HyFLO: Hybridizable discontinuous Galerkin code for compressible Navier-Stokes equations written in deal.II
• BVTE: A DG code for the Barotropic vorticity transport equation on the sphere written in deal.II
• Fenics: My finite element codes written using Fenics library
• Examples using nek5000
• cfdlab: This is a collection of many small codes I am working on
• ffdtool: Free-form deformation tool used for shape optimization (closed source)
• optool: Parallel Optimization tool based on PSO and surrogate models (closed source)
• dgswm: Discontinuous Galerkin code for rotating shallow water equations on the sphere, written in deal.II
• semswm: Spectral element code for rotating shallow water equations on the sphere, written in deal.II

## Other codes

• spectral_matlab: Spectral methods in matlab. For python version of these codes, see here.
• nsc2ke: Written by B. Mohammadi. 2-d vertex-based finite volume code on triangular grids, inviscid, viscous, turbulence models.