Study of an Immersed Axisymmetric Turbulent Jet in Comparative Analysis of Turbulence Models
Аннотация
The study comparatively analyzes RANS turbulence models, such as the Menter (SST), Spalart --- Allmaras (SA), Sekundov models, and a recently developed two-fluid model by numerical simulation of an axisymmetric immersed jet. The analysis is done by comparing the obtained numerical results with experimental data and using the results of the analysis of their numerical implementation. For all models, the same numerical algorithm is applied. To facilitate the study of a free jet, "parabolized" hydrodynamic equations are considered, for the numerical implementation of which the marching integration method is used. An absolutely stable implicit finite-difference scheme is applied. The study shows that the developed two-fluid model has advantages over other models both in terms of accuracy and simplicity of numerical implementation