抄録
This paper presents the capability of the supercritical-fluids simulator (SFS) developed by us to simulate thermal convections of arbitrary substance in arbitrary conditions. In SFS, a numerical method based on the preconditioning method coupled with the PROPATH database is used. The method enables us to calculate not only thermal convections of supercritical fluids but also those of arbitrary substances in gas and liquid phases. As numerical examples, carbon-dioxide, water, nitrogen, methane and helium in a square cavity in several conditions are calculated using SFS and the calculated results are compared with each other and some of them are compared with the existing numerical results.
