Abstract
Heat and mass transport phenomena in supercritical air near the maxcondentherm point has been investigated using a laser holography interferometer. In a previous study, it was confirmed that a large temperature (density) gradient, which could not be observed in supercritical nitrogen, was formed in supercritical air. We also obtained an experimental result, which suggested the existence of piston effect. At that time, heat was added from a planar heater located at the bottom of an experimental cell. In this mode, the heat and mass transport phenomena always accompany natural convection. To prevent the effect of natural convection, heat was added from the top of the cell in the present study. Here, we show the experimental results and discuss the heat and mass transport phenomena observed in supercritical air.
