An effective finite-difference scheme for problems of turbulent heat and mass transfer

This paper describes a new finite-difference scheme for convection-diffusio n equations used for prediction of heat transfer and fluid flow in nuclear power plant equipment. This method takes into account, more accurately, the distribution of the source term and the diffusion coefficient within the c ontrol volume. A comparison with the exact analytical solutions as well as the results obtained using other popular methods is also given. The efficie nt finite-differencing scheme is shown to be more accurate while using a me sh system with fewer grid points. (C) 2000 Elsevier Science S.A. All rights reserved.