Solidification effects on liquid diffusion experiments due to long capillary method: Numerical simulation

In order to evaluate the solidification effects on diffusion experiments due to the long capillary method, numerical simulations were carried out. The simulation program to calculate the heat conduction, the flow due to solidification shrinkage and the concentration distribution was developed based on two dimensional model with axial symmetry using finite difference method. The calculated result corresponded with actual concentration change.