Presence and properties of acoustic peaks near the nozzle of impinging rocket jets

Topical Issue - Aeroacoustics: state of art and future trends

Open Access

Figure 8

Sound pressure spectra at z = 0 and r = 2r₀ for (a) L = 15r₀ and (b) L = 25r₀: full spectra and modes n_θ = 0, n_θ = 1, n_θ = 2, n_θ = 3 and n_θ = 4.

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