抄録
Numerical simulation of supercritical water flow is presented. In the present scheme, the preconditioning method developed by the authors was coupled with Building-Cube Method (BCM). An Immersed Boundary (IB) method is applied to the wall boundary treatment and mathematical models of thermophysical properties for water programmed in the PROPATH is used for physical property estimation of fluids. In the paper, as a classical case, flow past a circular cylinder at low Reynolds number is calculated, assuming water at liquid and supercritical state as fluid medium. The behavior of supercritical water is identical to that of liquid water for conventional settings as expected, since its behavior totally depends on Reynolds number. By adopting a temperature difference, the behavior of supercritical water is significantly different from water liquid because of the sharp variation of physical properties.
