Implicit Time-Spectral Method for Unsteady Reynolds-Averaged Navier–Stokes Computations of Turbulent Flows

What is it about?

We extend our recently proposed space-time unified LU-SGS scheme to the solution of turbulence model equations. Machine-zero convergence can be reached for the turbulence model equations and the convergence rate for all equations is essentially independent of the number of the retained modes in the Fourier time spectral approach. We also observed the remarkable difference in local flow unsteadiness for the two branches of the γ-type shock in the test case of the pitching ONERA M6 wing.

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