OpenFOAM solver for nonLinearAdvectionDiffusion equation
 

While learning openfoam programming module, i documented basic solvers which represents NonLinearAdvectionDiffusion equation.

Link to Documentation: https://rvadrabade.github.io/OF/NonL...usionFoam.html

Link to test cases:
https://rvadrabade.github.io/OF/Validation_nLAD.html

Compared with c code output there is too much over and under shoot for upwind scheme and other schemes too .

Do these result are valid? Do solver needs some improvement?

Source code and test cases:

https://github.com/Rvadrabade/OpenFO...nDiffusionFoam

reply to nonLinearAdvectionDiffusion solver results
 

It seems it should be have decrease at velocity after normal shock; however, from the result cases, there are increasing velocity!

May be there are some mistakes in defining boundary conditions.

Could you suggest correct/suitable boundary condition (s)?