Free convection and heat transfer in a near-supercritical fluid in a horizontal square cavity with lateral heating

The problem of natural convection and heat transfer of water is solved numerically under a pressure of 23 MPa near the critical isochore, in a square cavity with lateral heating. It is shown that natural convection under near-supercritical state of the liquid is implemented in microchannels and under conditions of microgravity. The data on heat transfer are generalized.