Abstract
Weighted compact nonlinear scheme (WCNS) is improved by replacing the nonlinear explicit interpolation with a nonlinear compact interpolation. The non-oscillatory behaviour of the weighting technique and the spectral resolution of the compact interpolation are maintained simultaneously. In order to investigate the performance of implicit large-eddy simulations (ILES) using WCNS with the new interpolation, several fundamental turbulent flows with relatively complex configurations are validated. Encouraging results are obtained in predicting mean flow profiles, unsteady vortex shedding and the frequency spectra, indicating that the improved WCNS is a promising algorithm for simulations of turbulent compressible flows.
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