Average over time
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1 Buffeting in the air
The RANS (Reynolds Average Navier Stokes) methods are numerical simulation methods that give results averaged over time; with a very restricted spectrum of excitation frequencies. Conversely, the DES (Detached Eddy Simulation) type methods give unsteady results with a much wider spectrum of frequencies -
2 Simulation of the noise of landing gear through CFD*
In particular, they are averaged over time and are best suited to relatively steady flows. 4 ZDES- Zonal Detached Eddy Simulation
