Browsing Mechanical, Manufacturing & Biomedical Eng by Author "Bennett, Gareth"
Now showing items 1-20 of 49
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2D PIV measurement on the interaction zone between two parallel planar jets in a crossflow
Bennett, Gareth; Kennedy, John (2017) -
Acoustic plate-valve resonator for low-frequency sound absorption
Bennett, Gareth (2023)An acoustic plate-valve resonator is developed and optimized to maximize absorption by enhancing the Helmholtz resonance with coincident structural vibrations of the plate-valve. The current research initially examines the ... -
Aeroacoustic Noise Source Identification Using Irregularly Sampled LDV Measurements Coupled with Beamforming (AIAA-2011-2719)
Bennett, Gareth (2011)This paper develops a technique which relates dynamic pressure measurements taken outside the hydrodynamic eld of a low speed jet to single point, one component velocity measurements taken within the jet using a Laser ... -
Aeroacoustic source characterization technique applied to a cylindrical Helmholtz resonator
Bennett, Gareth (2011)The aim of this work is to investigate the sound produced by a Helmholtz resonator excited by a boundary layer. A deep cylindrical cavity with a small rectangular opening was designed to allow Helmholtz resonance as well ... -
Aeroacoustic Source Separation on a Full Scale Nose Landing Gear Featuring Combinations of Low Noise Technologies
Bennett, Gareth; Kennedy, John (ASME, 2015) -
Aeroacoustics research in Europe: The CEAS-ASC report on 2022 highlights
Bennett, Gareth (2024)The Council of European Aerospace Societies (CEAS) Aeroacoustics Specialists Committee (ASC) supports and promotes the interests of the scientific and industrial aeroacoustics community on a European scale and European ... -
Bio-inspired Aerodynamic Noise Control: A Bibliographic Review
Bennett, Gareth (2019)It is well-known that many species of owl have the unique ability to fly silently, which can be attributed to their distinctive and special feather adaptations. Inspired by the owls, researchers attempted to reduce the ... -
Broadband Noise Source Location in Turbomachinery using a Conditioned Spectral Analysis Technique Coupled with Modal Decomposition
Bennett, Gareth (2010)Methods are presented for the identification, viz., relative magnitude and spatial origin, of broadband and tonal noise sources within aeroengines. The methods require dynamic pressure measurements from sensors located ... -
CAA Noise Reduction Study of Mesh Screens Applied to Landing Gears
Bennett, Gareth (2015) -
Cavity Resonance Suppression Using Fluidic Spoilers
Bennett, Gareth (2019) -
Characterization of Low Noise Technologies Applied to a Full Scale Fuselage Mounted Nose Landing Gear
Bennett, Gareth; Kennedy, John (The Institute of Noise Control Engineering of the USA, Inc., 2015) -
Characterization of the aircraft bay/landing gear coupling noise at low subsonic speeds and its suppression using leading-edge chevron spoiler
Bennett, Gareth (Sage Publications, 2019)When the aircraft opens the bay door to let the landing gear either drop or retract, the incoming flow will result in a significant amount of coupling noise from the bay and the landing gear. Here, an experimental study ... -
A Comparison of Coherence Based Acoustic Source Identification Techniques
Bennett, Gareth (2005)Four techniques of source identification are examined and the performance of each evaluated with experimental data. The procedures are all frequency domain methods and depend to some extent on the coherence function. The ... -
Design Projects in Undergraduate Engineering
Bennett, Gareth (2010)Design has been extensively embedded within the undergraduate Engineering programmes through a restructuring of the curriculum to increase small group, project based learning. Complementing this strategy, a selection of ... -
Environmental noise mapping using measurements in transit
Cahill, Vinny; Bennett, Gareth; Rice, Henry (2010)Due to the ever increasing level of environmental noise that the EU population is exposed to, all countries are directed to disseminate community noise level exposures to the public in accordance with EU Directive ... -
An Experimental Characterization on the Acoustic Performance of Forward/Rearward Retraction of a Nose Landing Gear
Bennett, Gareth; Liang, Yong; Zhao, Kun; Chen, Yingchun; Zhang, Longjun (2019)The modern undercarriage system of a large aircraft normally requires the landing gear to be retractable. The nose landing gear, installed in the front of the fuselage, is retracted either forward or rearward. In the ... -
Experimental Investigations of Coherence Based Noise Source Identification Techniques for Turbomachinery Applications - Classic and Novel Techniques (AIAA-2011-2830)
Bennett, Gareth (2011)Coherence based noise source identi cation techniques utilise the ordinary linear coherence function between two signals to identify the contribution of one or more sources to the noise measured at a location of interest. ... -
Experimental observations of an installed-on-pylon contra-rotating open rotor with equal blade number in pusher and tractor configuration
Bennett, Gareth; Kennedy, John (2016) -
Experimental study of realistic low noise technologies applied to a full scale nose landing gear
Bennett, Gareth; Kennedy, John (2021)The landing gear system is the dominant airframe noise source for most modern commercial aircraft during approach. This manuscript reports the results from the ALLEGRA (Advanced Low Noise Landing (Main and Nose) Gear for ... -
Fan-noise reduction of data centre telecommunications' server racks, with an acoustic metamaterial broadband, low-frequency sound-absorbing liner
Bennett, Gareth (2023)An acoustic metamaterial is evaluated successfully as a means to reduce axial fan noise in an IT server rack application. The continuing growth in demand for cloud-based memory storage is outpacing sustainable energy ...