[Freeflow][test][angeli] No convergence for first time step
The solution does not properly converge for the first time step. The pressure solution is really weird for very small time steps (as the 10^(-12) that is currently used). It becomes less and less weird the larger the first time step is taken. But even for an initial time step of e.g. 10^(-2) the solution is an unsymmetrical version of what it is supposed to be.