Toward the Validation of a Newly Developed CFD Code: the Case of a Jet in Cross Flow

During the past few years a computational fluid dynamics computer code specifically taylored for compressible aerodynamical application has been developed by a group of brazilian enterprises and universities. This code solves the transport equations of mass momentum and energy for both laminar or turbulent flows on general unstructured meshes. Several turbulence models are avaliable. The governing equations are discretized by a finite volume technique, and different central and upwind schemes may be used for computing the fluxes. Temporal discretization may be performed either by explicit or implicit schemes, multigrid convergence acceleration is available. This work describes part of the code validation effort performed. A high speed jet in cross flow configuration, for which experimental data is available, is considered. The results obtained with the different turbulence models, spatial discretization schemes are compared to the experimental data and to computational results obtained with a commercial computer code. These comparisons show that the choices of the turbulence model and of the spatial discretization scheme exert a strong influence on the computed results.

Luís Fernando Figueira da Silva, Fernando Oliveira de Andrade, Sandro Barros Ferreira