Experimental and Numerical Investigation of Jet Flap Interaction Effects

Lyubimov, D. A.; Maslov, V. P.; Mironov, A. K.; Secundov, A. N.; Zakharov, D. L.

doi:10.1260/1475-472x.13.3-4.275

Cited by 4 publications

(1 citation statement)

References 17 publications

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“…Jet installation noise has been widely investigated experimentally over the years for both simplified (Head and Fisher 1976;Cavalieri et al 2014;Lawrence and Self 2011;Piantanida et al 2016;Bychkov and Faranosov 2018) and more realistic, industrial-like configurations (Perrino 2014;Lyubimov et al 2014;Belyaev et al 2017). Among others, Lawrence et al performed an extensive experimental campaign for various axial and radial distances between the jet and the trailing edge of the plate as well as jet Mach number (Lawrence and M. A. and R. H. Self 2011).…”

Section: Introductionmentioning

confidence: 99%

Simulation of Isolated and Installed Jet Noise at Mach = 0.9: Influence of Numerical Mesh and Physical Insights

Huet,

Gand,

Rahier

2023

Flow Turbulence Combust

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The noise radiated by an isothermal, single-stream jet with a Mach number M = 0.9 and diameter-based Reynolds number ReD = 106 is investigated numerically without and with the presence of a flat plate. Noise sources are predicted with Zonal Detached Eddy Simulations yielding Wall Modelled LES in attached boundary layers (so called ZDES mode 3) together with turbulence tripping inside the nozzle to recover an initially turbulent flow, while radiated pressure is extrapolated with integral methods. Numerical methodology, namely grid and statistical convergence of the signals, is assessed for the isolated jet. Noise levels are accurately simulated at least up to St = 8 and integrated pressure levels collapse within 1 dB with the experiments. In the presence of the plate, a noise radiation methodology based on both Ffowcs Williams Hawkings and Kirchhoff integral methods is proposed to reconstruct the pressure signals at microphone locations with a reduced numerical cost. The simulation compares very favorably with the experimental data, azimuthal noise variations induced by the plate are correctly captured and noise levels collapse within 1 dB. It is concluded the numerical methodology is mature enough for application in an industrial context.

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