Numerical Analysis of Porous Coatings Stabilizing Capabilities on Hypersonic Boundary-Layer Transition

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Standard

Numerical Analysis of Porous Coatings Stabilizing Capabilities on Hypersonic Boundary-Layer Transition. / Fievet, Romain; Deniau, Hugues; Brazier, Jean-Philippe; Piot, Estelle.

I: AIAA Journal, Bind 59, Nr. 10, 10.2021, s. 3845-3858.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Fievet, R, Deniau, H, Brazier, J-P & Piot, E 2021, 'Numerical Analysis of Porous Coatings Stabilizing Capabilities on Hypersonic Boundary-Layer Transition', AIAA Journal, bind 59, nr. 10, s. 3845-3858. https://doi.org/10.2514/1.J059830

APA

Fievet, R., Deniau, H., Brazier, J-P., & Piot, E. (2021). Numerical Analysis of Porous Coatings Stabilizing Capabilities on Hypersonic Boundary-Layer Transition. AIAA Journal, 59(10), 3845-3858. https://doi.org/10.2514/1.J059830

Vancouver

Fievet R, Deniau H, Brazier J-P, Piot E. Numerical Analysis of Porous Coatings Stabilizing Capabilities on Hypersonic Boundary-Layer Transition. AIAA Journal. 2021 okt.;59(10):3845-3858. https://doi.org/10.2514/1.J059830

Author

Fievet, Romain ; Deniau, Hugues ; Brazier, Jean-Philippe ; Piot, Estelle. / Numerical Analysis of Porous Coatings Stabilizing Capabilities on Hypersonic Boundary-Layer Transition. I: AIAA Journal. 2021 ; Bind 59, Nr. 10. s. 3845-3858.

Bibtex

@article{facab2e9792546dbb672792686053eb6,
title = "Numerical Analysis of Porous Coatings Stabilizing Capabilities on Hypersonic Boundary-Layer Transition",
abstract = "A high-order spectral difference flow solver is used to perform direct numerical simulations (DNS) of a hypersonic laminar boundary layer on an ultrasonically absorptive coating (UAC), in order to analyze the stabilizing effects of such a material on the laminar-turbulent transition. The UAC is modeled in the simulations by a time-domain impedance boundary condition, which is calibrated to replicate the acoustic response of the UAC over a broad spectral range. The frequency-dependence damping effectiveness is investigated, as are any other side effects the porous coating might have on the mean flow. It is found that the second-mode instability, which dominates the high-Mach number flow regime, is strongly suppressed for all excitation frequencies considered. The DNS solutions are also found to compare favorably with linearized stability theory. Finally, a side effect of theUACis the modification of the medium dispersive properties and the change of the perturbation group velocity.",
keywords = "2ND-MODE ATTENUATION, RECEPTIVITY, SIMULATION, SCHEMES, DESIGN, FLOW",
author = "Romain Fievet and Hugues Deniau and Jean-Philippe Brazier and Estelle Piot",
year = "2021",
month = oct,
doi = "10.2514/1.J059830",
language = "English",
volume = "59",
pages = "3845--3858",
journal = "AIAA Journal",
issn = "0001-1452",
publisher = "American Institute of Aeronautics and Astronautics Inc. (AIAA)",
number = "10",

}

RIS

TY - JOUR

T1 - Numerical Analysis of Porous Coatings Stabilizing Capabilities on Hypersonic Boundary-Layer Transition

AU - Fievet, Romain

AU - Deniau, Hugues

AU - Brazier, Jean-Philippe

AU - Piot, Estelle

PY - 2021/10

Y1 - 2021/10

N2 - A high-order spectral difference flow solver is used to perform direct numerical simulations (DNS) of a hypersonic laminar boundary layer on an ultrasonically absorptive coating (UAC), in order to analyze the stabilizing effects of such a material on the laminar-turbulent transition. The UAC is modeled in the simulations by a time-domain impedance boundary condition, which is calibrated to replicate the acoustic response of the UAC over a broad spectral range. The frequency-dependence damping effectiveness is investigated, as are any other side effects the porous coating might have on the mean flow. It is found that the second-mode instability, which dominates the high-Mach number flow regime, is strongly suppressed for all excitation frequencies considered. The DNS solutions are also found to compare favorably with linearized stability theory. Finally, a side effect of theUACis the modification of the medium dispersive properties and the change of the perturbation group velocity.

AB - A high-order spectral difference flow solver is used to perform direct numerical simulations (DNS) of a hypersonic laminar boundary layer on an ultrasonically absorptive coating (UAC), in order to analyze the stabilizing effects of such a material on the laminar-turbulent transition. The UAC is modeled in the simulations by a time-domain impedance boundary condition, which is calibrated to replicate the acoustic response of the UAC over a broad spectral range. The frequency-dependence damping effectiveness is investigated, as are any other side effects the porous coating might have on the mean flow. It is found that the second-mode instability, which dominates the high-Mach number flow regime, is strongly suppressed for all excitation frequencies considered. The DNS solutions are also found to compare favorably with linearized stability theory. Finally, a side effect of theUACis the modification of the medium dispersive properties and the change of the perturbation group velocity.

KW - 2ND-MODE ATTENUATION

KW - RECEPTIVITY

KW - SIMULATION

KW - SCHEMES

KW - DESIGN

KW - FLOW

U2 - 10.2514/1.J059830

DO - 10.2514/1.J059830

M3 - Journal article

VL - 59

SP - 3845

EP - 3858

JO - AIAA Journal

JF - AIAA Journal

SN - 0001-1452

IS - 10

ER -

ID: 289456931