摘要
The general pressure equation (GPE) based method is fully explicit, and the method does not require either solving the pressure Poisson equation nor executing sub-iteration for incompressible flow simulation. However, few numerical validations of GPE method are available, especially under complex flows like turbulence. In this work, GPE is used to conduct direct numerical simulations of the turbulent lid-driven cavity (LDC) flow at Re = 3200 and fully developed turbulent flow through a square duct at Re τ = 360. Predicted turbulence statistics are compared with existing numerical and experimental data, providing an excellent quantitative agreement. The intricate flow patterns such as the Taylor–Görtler-like vortices in LDC flow and the mean secondary flow at the cross-section in the square duct are captured, showing both qualitative and quantitative agreements with measurements. Results from the present study indicate the capability of the GPE method for accurate incompressible turbulent flow calculation.