Here are some basic CFD source codes in Fortran. These codes were originally developed when I was a research scholar at IIT Bombay during 2000-2001. Recently, I could squeeze some time to revise the codes and present it in a more readable form. In spite of the best effort to make the code bug-free, you may still find some notorious bugs hidden somewhere inside these codes! The codes are intended to use only for academic purpose. Students who begin to learn CFD or Numerical Heat Transfer may find these codes useful.

Steady State Heat Conduction Equation (Elliptic Equations) 1-D - Finite Difference Method - Dirichlet and Neumann BCs 1-D - Finite Volume Method - Dirichlet and Neumann BCs 2-D - Finite Volume Method - Dirichlet and Neumann BCs Unsteady Heat Conduction Equation (Parabolic Equations) 1-D - FVM - Explicit Forward Euler Scheme (FTCS) 1-D - FVM - Generalized Beta Scheme 2-D - FVM - Explicit Forward Euler Scheme (FTCS) 2-D - FVM - Implicit Backward Euler Scheme (BTCS) 2-D - FVM - Crank-Nicolson Scheme 2-D - FVM - Generalized Beta Scheme 2-D - FVM - Fractional Step Method 2-D - FVM - Alternating Direction Implicit Method (ADI) Wave Equation (Hyperbolic Equations) 1-D Linear wave equation:  Solution using FTFS, FTCS, Upwind, Lax-Friedrichs, Lax-Wendroff, MacCormack, Beam-Warming, Fromm, and ENO-2 Schemes 1-D Nonlinear wave equation:  Solution using FTCS, Upwind, Lax-Friedrichs, Lax-Wendroff, MacCormack, and ENO-2 Schemes 2-D Linear wave equation:  Solution using Upwind, MacCormack, and ENO-2 Schemes Steady Convection-Diffusion Equation 1-D - Convection-Diffusion Equation:  Solution Using Upwind and CDS Schemes Navier-Stoke's Equation 2-D - Navier-Stokes code for incompressible flows. The MAC Method.