The stability boundary for supercritical flow in natural-convection loops: Part II: CO2 and H2

The universality of non-dimensional parameters that govern the stability boundary of supercritical flow in natural-convection loops is examined through 146 numerical experiments. Part I reported studies of supercritical H2O. This part extends that study to CO2 and H2. The finding is that the derived non-dimensional parameters appear to be valid regardless of the fluid, the geometric dimensions or the flow conditions.