Table of Contents

II - Determination of the
             critical Rayleigh

1) Definition
2) Determination of critical
     Rayleigh with Nusselt
3) Determination of critical
     Rayleigh with Vmax
4) Conclusion

III - Turbulence from a
                laminar point of view

1) Presentation of the
     simulation case
2) Results with the turbulent
     model
3) Results with the laminar
     model
4) Conclusion

IV - Comparison of the unsteady
               and steady calculations

1) Results of the Steady State
     case
2) Results of the Unsteady
     State case
3) Comparison and conclusion