Numerical Calculations Of Phase-Change Heat Transfer Between Ice And Water In Structured Grid

The phenomena of icing and melting are related closely with our daily life. From the view of heat transfer, the essence of the phenomena is a heat transfer problem with phase change. The numerical simulation of the phenomena has been a hotspot in the field of numerical heat transfer in the recent years.The numerical calculations of phase change heat transfer between ice and water were investigated based on structured grids. It included the discretization method of governing equation, the treatment of boundary conditions and source terms. The diffusion term was discretized by cell-based finite volume method (FVM), and the second order accuracy. The unsteady term was discretized by implicit scheme. And, latent heat was calculated as a source term.Computational program was made using VISUAL FORTRAN, and the codes were divided into different modules according to different purposes. The classic examples of heat transfer problems from one dimension to three dimensions were presented to validate the correction, integrity and universality of the program. The numerical solutions of these examples are agreement when compared with the analytic solutions. All of these prove that the method and the procedure are correct and satisfied. After that, the phase change problems were calculated between ice and water, which supplies useful numerical calculation tools for engineering and application.