Modeling heat exchanger by FDM and FEM in C# and Comsol Multiphysics

The paper deals with modeling and simulation of the heat exchanger by means of finite difference method (FDM) and finite element method (FEM) in C# and Comsol Multiphysics environments. It refers to previously published papers on this problematic while introducing new approaches. The paper brings a short introduction of solution of above mentioned particular approaches in Comsol Multiphysics and C#.