Numerical modeling of non-stationary turbulent flow with double barrier based on two liquid turbulence model
Annotatsiya
The article presents the results of a numerical study of the flow structure in a flat channel with a double barrier. The calculations are based on solving a system of unsteady equations of two liquid models of Malikov turbulence. As a result, we studied the longitudinal velocity profiles in various sections of the channel, as well as the change in the friction coefficient and the pressure drop as a function of distance. For the difference approximation of the initial equations, the control volume method SIMPLE is used. In this case, the viscous terms were approximated by the central difference, and the second order accuracy scheme QUICK was used for convective terms. For the study, various Reynolds numbers were used and changes in the Reynolds number were studied for the influence of flow dynamics.