Two-dimensional Non-compressible Turbulence In Large Eddy Simulation

Large eddy simulation methods have been investigated in this paper intensively, differentiating the N-S equations and model equations using 4-th order central splitted scheme in spacewise and 4-th order Runge-Kutta methods in timewise. Two dimensional supersonic laterally jet flow with free stream and supersonic turbulent flow of both two dimensional and three dimensional open cavity. As a kind of numerical simulation method, modelling is associated with numerical scheme intimately, neither to be overseen. The advantages and shortcoming of the scheme used here were dicussed intensively by concrete computational samples.