Programm - Measurement Valley

DLR-Kolloquium Göttingen
REFERENT:
Carlo Scalo (Assistant Professor)
Mechanical Engineering, Purdue University (USA)
(Eingeladen von Alexander Wagner, AS-RFZ, Gö)
TITEL:
Compressible boundary layers over acoustically resonant porous
surfaces
ZEIT:
Donnerstag, 11.08.2016
13:30 Uhr Vortragsbeginn
ORT:
DLR Göttingen, Adolf-Busemann-Raum (Hörsaal Haus 7, EG)
The talk will discuss fundamental computational and
physical aspects associated with transitional and
turbulent boundary layer control via acoustic resonance
and absorption in porous walls. The dynamics of waves
propagating in porous cavities will be analysed via direct
and inverse eigenvalue approaches with focus on the
characterization of the surface impedance. The latter is
defined as the ratio between the Fourier transforms of
pressure and transpiration velocities at the interface.
High-fidelity numerical simulations retaining full
aeroacoustic coupling between the overlying flow and
porous walls relying on the time-domain technique by
Scalo et al., Phys. Fluids (2015) will be discussed. Finally,
plans to perform direct numerical simulations of the
experiments by Wagner et al., AIAA 2012-5865 in hypersonic flow control over ultrasonically
absorptive porous coatings will be presented in the context of a recently awarded research grant.
Carlo Scalo is an Assistant Professor in the School of Mechanical Engineering
at Purdue University. He completed his Post-Doc at Stanford University (2014),
working on theoretical and numerical modeling of thermoacoustic instability
and sound-turbulence interactions in compressible boundary layers. He
completed his Ph.D. (2012) at Queen's University, Canada on large-eddy
simulations of high-Schmidt-number turbulent mass transfer in equilibrium
and non-equilibrium geophysical flows. He obtained his B. Eng. (2006) and
M.Sc. (2008) in Aerospace Engineering at the Università degli Studi di Napoli Federico II, Italy.
Carlo Scalo combines high-fidelity simulations with analytical modeling. His research interests
include geophysical flows, turbulent heat-and-mass transfer, thermo- and nonlinear acoustics, lowand high-speed turbulence.
DLR-Standort Göttingen
Geschäftsführung
Bunsenstraße 10, 37073 Göttingen
Telefon 0551 / 709-2102

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