Overview of a Theory for Planning Similar Experiments with Different Fluids at Supercritical Pressure

The recent advancements achieved in the development of a fluid-to-fluid similarity theory for heat transfer with fluids at supercritical pressures are summarised. prime mover was interest Supercritical Water nuclear Reactors (SCWRs) frame research being developed worldwide; however, is general and can be applied to any system involving pressure. steps involved rationale basis discussed presented synthetic form, highlighting relevance results so far separately published elsewhere, aim provide complete overview potential application theory. adopted rationale, completely different from ones previous literature on subject, based specific definition similarity, aiming achieve, as much possible, similar distributions enthalpies fluid densities duct containing This provides sufficient assurance that complex phenomena governing addressed conditions, which heavily depend changes density other thermophysical properties along across flow duct, represented similarity. used planning possible counterpart experiments, aid supporting computational fluid-dynamic (CFD) calculations, it also clarifies role relevant dimensionless numbers setting up semi-empirical correlations these difficult experiencing normal, enhanced deteriorated regimes. paper intended contribution common reflection view assessment body knowledge understanding base successful predictive capabilities pressures.