I have implemented a FVM code and now I need to plot the accuracy of the method as the mesh gets refined. Having a very fine mesh, my idea is to compare what is the error between the coarser and fine mesh in the L1-norm. My problem is that having a finer mesh the solution vector has more entries than the solution with the coarse grid, therefore, how to compare the two?
Compute accuracy order as mesh gets refined?
numerical analysis;error estimation;accuracy