[hadesmajesty]

AS the disturbance wave propagates to the high Reynolds number region where breaking down to turbulence occurs, my algorithm starts to blow up. I am using finite difference methods in downstream and wall-normal direction and spectral method in spanwise direction, and explicit RK method for temporal integration. I notice before the blowing up, there are strong oscillations in the near wall region. So I double it may be due to the poor resolution in the wall-normal direction or the violation of CFL condition in that region. Anyone has a clue? Thank you.