Turbulent inflow conditions for large-eddy simulation of compressible wall-bounded flows

The issue of turbulent inflow conditions for large-eddy simulation (LES) is addressed through three representative examples recently treated at ONERA. First, the performance of an extension to compressible flows of the resealing method of Lund et al. (Lund, T. S., Wu, X., and Squire, K. D., "Generation of Turbulent Inflow Data for Spatially-Developing Boundary Layer Simulations," Journal of Computational Physics, Vol. 140, No. 2, 1998, pp. 233-258) is assessed. The second example, the flow above a deep cavity shows that the imposition of turbulent fluctuations has nearly no influence on the accuracy of the simulation on this acoustically driven flow. The third case demonstrates that particular attention must be paid to the response of the inflow condition to acoustic perturbations when local hybrid Reynolds-averaged Navier-Stokes/LES approaches are considered.