Ramjet diffuser flowfield response to large-amplitude combustor pressure oscillations

Ramjet diffuser flowfield response to large-amplitude combustor pressure oscillations

The unsteady flow of a two-dimensional ramjet diffuser is studied numerically by solving the Navier-Stokes equation with a two-equation turbulence model. The case with a sinusoidal exit plane pressure fluctation of 20% of the mean exit pressure is considered to simulate pressure oscillation from a r...

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Veröffentlicht in:Journal of propulsion and power 1987-09, Vol.3 (5), p.472-477
Hauptverfasser: Hsieh, T, Wardlaw, A. B, Coakley, T
Format: Artikel
Sprache:eng
Schlagworte:
Aerodynamics
combustion
Combustion chambers
Diffusers
numerical analysis
oscillation
pressure
Pressure oscillations
propulsion
Ramjet engines
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Zusammenfassung:The unsteady flow of a two-dimensional ramjet diffuser is studied numerically by solving the Navier-Stokes equation with a two-equation turbulence model. The case with a sinusoidal exit plane pressure fluctation of 20% of the mean exit pressure is considered to simulate pressure oscillation from a ramjet combustor.
ISSN:0748-4658
1533-3876
DOI:10.2514/3.23013