1.8 Exercises left to the user

1. Increase the polynomial order and plot the L₂ error vs. the polynomial order in a semilogarithmic scale.
2. Change the projection operator for a fixed polynomial order and look at the error.
3. Increase the time-step for a fixed polynomial order and look at the error.
4. If the solver is compiled with the MPI option, then try running the case in parallel with mpirun -np 2.
5. Change the Projection Operator to Continuous to see the same problem running with a CG solver.
6. Change the solver type to AdvectionDiffusion and CG to change the problem type. You also need to update the AdvectionType to NonConservative. Noting that solution would need to be updated to …?