Abstract
This paper presents the capability of the supercritical-fluids simulator developed by us to simulate flows at atmospheric conditions. This simulator uses a numerical method based on the preconditioning method coupled with the PROPATH database. Supercritical fluids of arbitrary substance can be calculated using the simulator. Also flows of arbitrary gas and liquid such as water vapor and water liquid can be simulated considering their compressibility. As numerical examples, carbon-dioxide, water, and nitrogen in a square cavity at several pressure and temperature conditions are calculated using the simulator and the calculated results are compared with each other.
