Abstract
This study is on the numerical computation of the transport phenomena in the salinity-gradient solar pond. The pond consists of three layers of water, 10 wt% saltwater, and the intermediate region. In this computation, the dependence of the temperature and the concentration on the properties were considered. As the result, the numerical simulations of the diffusion process of mass and energy suggest the heat accumulation in the saltwater. Further, the simulation considering fluid flow was carried out. According to this calculation, it was found that the intermediate insulating layer with the salt gradient establishes a density gradient and prevents heat exchange by natural convection to some extent.