Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Reda Mankbadi"'
Autor:
Samuel Afari, Reda Mankbadi
Publikováno v:
Aerospace, Vol 11, Iss 6, p 453 (2024)
High-fidelity computations are often used in predicting the tonal and broadband noise of propellers and rotors associated with Advanced Air Mobility Vehicles (AAMVs). But LES is both CPU and storage intensive. We present here an investigation of the
Externí odkaz:
https://doaj.org/article/ca0b54f707444e1ca11e47c57facc403
Publikováno v:
Applied Sciences, Vol 13, Iss 4, p 2543 (2023)
The current technologies for developing quiet rotor noise in urban canyons are reviewed. Several passive noise control approaches are discussed with their limitations in reducing both tonal and broadband noise. Blade tip modifications are seen to be
Externí odkaz:
https://doaj.org/article/20a696f9529649888676195bb3b70a5e
Publikováno v:
Applied Sciences, Vol 11, Iss 5, p 2257 (2021)
A high-fidelity computational analysis carefully validated against concurrently obtained experimental results is employed to examine self-noise radiation of airfoils at transitional flow regimes, with a focus on elucidating the connection between the
Externí odkaz:
https://doaj.org/article/4e2e3bacd7c64eabb52b0f7684030938
Autor:
Saman Salehian, Reda Mankbadi
Publikováno v:
Applied Sciences, Vol 10, Iss 2, p 511 (2020)
This paper reviews and presents new results on the effect of airframe integration and shielding on jet noise. Available experimental data on integration effects are analyzed. The available options for the computation of jet noise are discussed, and a
Externí odkaz:
https://doaj.org/article/25aab01de1d04089b85b5d1a2c26debb
Autor:
Kevin Lake, Eric Dittman, Reda Mankbadi, Jennifer MacRae, Alex Stone, Chad Campbell, Claudia Ehringer, Spencer Haskins
Publikováno v:
52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
The focus of this work is on exploring the design of an aircraft hybrid propulsion system by integrating a gas turbine engine with an electric motor assisted by solar power. We discuss how the two systems can work in tandem while optimizing the effic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e633684160db47108ab7ebc9895633b0
https://doi.org/10.2514/6.2011-1986
https://doi.org/10.2514/6.2011-1986
Publikováno v:
44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe7132e45b01bd5368c6d03e496056e0
https://doi.org/10.2514/6.2008-4909
https://doi.org/10.2514/6.2008-4909
Numerical Simulation of Unsteady Response of an Oscillating Airfoil Subject to a High-Intensity Gust
Publikováno v:
13th AIAA/CEAS Aeroacoustics Conference (28th AIAA Aeroacoustics Conference).
The study examines unsteady nonlinear interaction of an upstream vortical flow perturbation with an oscillating airfoil, which, in particular, paves the way to the analysis of fully coupled unsteady aerodynamic, aeroacoustic, and aeroelastic response
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12a8dacc2b9d0fdf368e9bffc3bcb469
https://doi.org/10.2514/6.2007-3513
https://doi.org/10.2514/6.2007-3513
Publikováno v:
The Journal of the Acoustical Society of America. 136:2168-2168
The three-dimensional turbulent flow and acoustic field of a supersonic jet impinging on a solid plate at different inclination angles is studied computationally using the general-purpose CFD code ANSYS Fluent. A pressure-based coupled solver formula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a6cfe315565554231bd30e6bca65f90
https://doi.org/10.1121/1.4899846
https://doi.org/10.1121/1.4899846
Publikováno v:
29th AIAA, Fluid Dynamics Conference.
Direct computation of the unsteady characteristics of supersonic jet flow and its radiated noise is performed. The computation consists two parts: nonlinear sound source generation in the near field and linear acoustic radiation in the far field. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::191a519e3ca74762cf4c3e866de628fe
https://doi.org/10.2514/6.1998-3014
https://doi.org/10.2514/6.1998-3014
Publikováno v:
3rd AIAA/CEAS Aeroacoustics Conference.
The radiation of engine internal noise to the ambient from engine open ends with various geometries is studied in the present paper via numerical methods. The Euler's equations in generalized curvilinear coordinates are solved by the DRP finite diffe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af8a6491cb991f609a909f29e12d0d28
https://doi.org/10.2514/6.1997-1604
https://doi.org/10.2514/6.1997-1604