Effect of mass matrix forms on numerical simulations results in heat conduction modeling

The paper presents an analysis of the impact of the mass matrix on the changes in temperature during the computer simulation (using the method of finite elements) of the heat conduction process. The temperature variations of the phenomenon was taken into consideration, which is required during the solidification simulation of binary alloys. It was shown that the smallest oscillation occurs in the lumped matrices in the initial stage of the simulation. The results for lumped and diagonal matrix are mostly equal.