Abstract
The present paper is concerned with the application of a high-resolution scheme for a finite volume discretization method. The capability of the chosen scheme is evaluated for the numerical simulation of three-dimensional flowfields. Special emphasis lies in the calculation of the processes in the mixing zone of gas turbine combustors. Thus, numerical results are compared with detailed measurements of velocity and temperature in a model mixing zone. The velocity field as well as the temperature field strongly depend on the scheme used for the discretization of the momentum and energy equations. The proposed high-resolution scheme and the well-known QUICK scheme yield similar results, which are superior to those obtained with the simple UPWIND scheme. For the simulation of turbulent transport, the standard fc, € model is employed. The effect of numerical diffusion caused by the usual UPWIND discretization of the convective transport of A and e is assessed by the application of the high-resolution scheme of the discretization of the A and e equations. As a result, it is found that the velocity and temperature fields are insensitive to the scheme that is applied for the discretization of the A and e equations.
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