Numerical Study Of Three-Dimension Turbulent Flow Based On SIMPLE Method

In this paper, used the pressure for a primary dependent variable, SIMPLE algorithm for solution of incompressible, steady Navier-Stokes equation is presented in three-dimensional general curvilinear coordinates. The governing discretization equation is presented.Based on the non-stagger grid technique, the momentum equation is solved by using Cartesian velocity components as solving variables.The standard k - ε model is utilized to describe the turbulent flow process. According to the Favre mass-weighted averaging, the k equation and the e equation are modeled. The high Re number k-ε model and boundary condition of wall function method are considered.The method of grid generation is discussed. The governing equation used in partial differential equation is presented, and three -dimension grid is generated.The three-dimension turbulent flow in the curved duct is calculated.