Instability waves in a subsonic round jet detected using a near-field phased microphone array

By Takao Suzuki, Tim Colonius. Journal of Fluid Mechanics, 2006

348 citations recorded by the source corpus.

Subfields: Aerospace Engineering, Atmospheric Science, Computational Mechanics

View Paper: https://www.semanticscholar.org/paper/fe1489a78ab8261c02a5e5ba2d78b8136021ca54

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Citations in the corpus

Importance of the nozzle-exit boundary-layer state in subsonic turbulent jets (2018, background): “Trapped acoustic waves in the jet potential core Towne et al. (2017) and Schmidt et al.”
Aeroacoustic resonance and self-excitation in screeching and impinging supersonic jets – A review (2019, background): “subsonic jets (though the frequency peaks are typically less sharp than that observed in screech or impingement).(231) A pair of recent papers produced an explanation for these”
Wavepackets in the velocity field of turbulent jets (2012, result): “We favour this second hypothesis based on the agreement previously obtained by Suzuki & Colonius (2006) and Gudmundsson & Colonius (2011) between linear stability and the near pressure field; the axial POD used in those works led to close agreement at positions significantly downstream of the end…”
Spectral proper orthogonal decomposition and its relationship to dynamic mode decomposition and resolvent analysis (2017, methodology): “These wavepackets have been linked to the Kelvin-Helmholtz instability of the annular jet shear layer for St & 0.3 (Suzuki & Colonius, 2006; Gudmundsson & Colonius, 2011) and to a superposition of non-normal modes for St .”
Wavepackets and trapped acoustic modes in a turbulent jet: coherent structure eduction and global stability (2017, background): “Although some tones have also been observed in the near field of free high-subsonic jets (Suzuki & Colonius 2006), their relation to a feedback mechanism has not been established.”
Scattering of wavepackets by a flat plate in the vicinity of a turbulent jet (2012, positive): “Modelling of the sound source as wavepackets, which were detected previously in free jets and were seen to drive the near pressure field[9, 4] appears thus promising.”
The near pressure field of co-axial subsonic jets (2008, background): “…1963; Keast & Maidanik 1966; Ollerhead 1967; Arndt et al. 1997; Ricaud 2003; Reba et al. 2005; Coiffet et al. 2006; Barre et al. 2006; Suzuki & Colonius 2006), from which researchers have endeavoured to better understand † Current address: Department of Aerospace Engineering and…”
Acoustic resonance in the potential core of subsonic jets (2017, methodology): “In addition, we associate the waves with a series of tones that has previously been observed in experiments using microphones in the near-nozzle region (Suzuki & Colonius 2006; Sinha 2011).”
Influence of nozzle-exit boundary-layer conditions on the flow and acoustic fields of initially laminar jets (2010, result): “This may be expected, given the experimental findings by Suzuki & Colonius (2007) that the influence of compressibility on the mode balance of instability waves at the nozzle exit of subsonic round jets is rather small.”
Wavepacket models for supersonic jet noise (2014, background): “The near-field pressure of turbulent jets displays the wavepacket character most clearly, which is attributable to the wavenumber-filtering behaviour of the pressure field (Suzuki & Colonius 2006; Gudmundsson & Colonius 2011; Jordan & Colonius 2013).”