Upstream shear-layer stabilisation via self-oscillating trailing edge flaplets
نویسندگان
چکیده
منابع مشابه
Self-similarity of trailing vortices Self-similarity of trailing vortices
Trailing vortices have been repeatedly shown to exhibit a remarkably robust selfsimilarity independent of the Reynolds number and upstream boundary conditions. The collapse of the inner-scaled circulation profiles of a trailing vortex has even been previously demonstrated for the cases of highly unsteady and turbulent vortex systems, as well as for vortices which were incompletely developed. A ...
متن کاملStatistical Estimation of Turbulent Trailing Edge Noise
A new computational aeroacoustic model suitable for the prediction of turbulent airfoil trailing edge noise is presented. The method (known as the RANS based Statistical Noise Model or RSNM) combines numerically generated, mean turbulence information with a Green’s function for a semi-infinite half-plane to generate a far-field acoustic auto-spectrum. As a preliminary application of the method,...
متن کاملLES tests on airfoil trailing edge serration
In the present study, a large number of acoustic simulations are carried out for a low noise airfoil with different Trailing Edge Serrations (TES). The Ffowcs Williams-Hawkings (FWH) acoustic analogy is used for noise prediction at trailing edge. The acoustic solver is running on the platform of our in-house incompressible flow solver EllipSys3D. The flow solution is first obtained from the Lar...
متن کاملThe Spectra of the Oscillating Shear Flows
We study the spectral problems for the spatially periodic flows of inviscid incompressible fluid. The basic flows under consideration are the shear flows whose profiles oscillate on high frequencies. For such flows, we present asymptotic expansions of the unstable eigenvalues in the case when the limit spectral problem has multiple eigenvalues.
متن کاملSize-controlled polyelectrolyte nanocapsules via layer-by-layer self-assembly
Nanomaterials have found many important applications in biomedical, pharmaceutical, electronic, and molecular diagnostic fields. The recent introduction of electrostatic layer-by-layer (LbL) self-assembly technique enables the design and development of polymer/polymer and polymer/nanoparticle complexes at nanometer scale [1]. The LbL technique is based on alternate adsorption of oppositely char...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Experiments in Fluids
سال: 2018
ISSN: 0723-4864,1432-1114
DOI: 10.1007/s00348-018-2598-9