Numerical Calculation of Turbulent Flow in a Two-Dimensional Flat Diffuser Based on the Comsol Multiphysics Software
Аннотация
Modern economic theory, both at the micro and macro levels, and ever-increasing complexity of economic processes have led to the need to create and improve the use of mathematical modeling and quantitative analysis. On the basis of the latter, one of the areas of economic research emerged and was formed - econometrics. Econometric models and methods are now not only powerful tools for obtaining new knowledge in economics, but also a widely used apparatus for making practical decisions in forecasting, banking, and business. The development of information technologies and special ap-plication programs, the improvement of analysis methods have made econ-ometrics a powerful tool for economic research. The paper presents the prob-lem of numerical calculation of turbulent flow in a channel with a minor ob-stacle based on the COMSOL MULTIPHYSICS® software package. The SA and SST models were used for the numerical calculation of turbulent flow in the channel. The results obtained using the COMSOL MULTIPHYSICS® package were compared with experimental data and also analyzed in term of computational load. The results are obtained for Reynolds number Re = 20,000.