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221
Mixing enhancement in jet flow using the air tab technique
Published 2012“…However, due to its protrusion nature, its blockage will induce thrust loss for the jet engine exhausts. This loss varies from 4.1% to 23.7% when the blockage area due to the tabs at the nozzle exit increases from 1.1% to 14.1% (Zaman (1999)). …”
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222
Air-film behaviour in an air-riding face seal
Published 2019“…Unlike conventional face seals, the seal must be capable of operating with moderate clearances in the order of tens to hundreds of microns and be deployable over large axial movements of several millimetres if it is to operate successfully in the jet engine environment where components are light, flexible and subject to extreme thermal growths. …”
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223
Jet Aircrafts & Generations of Jet Fighter Aircrafts /
Published 2012“…At these altitudes, jet engines achieve maximum efficiency over long distances. …”
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software, multimedia -
224
Effect of Build Parameters on the Compressive Behavior of Additive Manufactured CoCrMo Lattice Parts Based on Experimental Design
Published 2022-06-01“…Due to their high specific strength, toughness, and corrosion and wear resistance characteristics, CoCrMo alloys are widely used in different industries and applications: wind turbines and jet-engine components, orthopedic implants, dental crowns, etc. …”
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225
Features of the application of alternative fuels in heat engines
Published 2023-08-01“…After analyzing the early ground test concept, the developers are planning a series of further bench tests leading to a full-scale ground test of a green hydrogen jet engine with the goal of achieving zero net carbon emissions from the engine Research Methods. …”
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226
A Mutual-Attention Guided Feature Extraction and Adaptative Decision Fusion Framework for Fine-Grained Dual-Band Radar Target Classification
Published 2024-01-01“…We conducted extensive experiments on a homebrew simulated dual-band fine-grained aircraft dataset, which includes the high resolution range profile signal and the jet engine modulation signal. Compared with other classification methods, the proposed approach exhibits a remarkable classification accuracy of 95.5<inline-formula><tex-math notation="LaTeX">$\%$</tex-math></inline-formula> in our homebrew dataset and maintains an impressive accuracy of 87.4<inline-formula><tex-math notation="LaTeX">$\%$</tex-math></inline-formula> even in challenging environments with a 5 dB SNRs. …”
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227
Experimental determination of creep fatigue life of 316L stainless steel pipe
Published 2011“…Component of engineering structures operating at high temperature such as jet engine, pressure vessels, nuclear reactors, steam and gas turbine including oil and gas plant are subjected to severe thermal and mechanical loading. …”
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228
The development of a fixed wing aircraft analysis and design flight dynamic software
Published 2016“…The fourth aircraft was a jet engine aircraft while the fifth aircraft represented a turboprop aircraft. …”
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229
A Novel Hybrid Technique Combining Improved Cepstrum Pre-Whitening and High-Pass Filtering for Effective Bearing Fault Diagnosis Using Vibration Data
Published 2023-11-01“…Safran Aero Engines was the topic manager for this project) and those from three databases available in the public domain—Case Western Reserve University (CWRU), Intelligent Maintenance Systems (IMS) datasets, and Safran jet engine data—all of which have been widely used in studies of this kind. …”
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230
Full-Scale Turbofan Demonstration of a Deployable Engine Air-Brake for Drag Management Applications
Published 2018“…The TRL-maturation effort involved design, fabrication, assembly, and ground-testing of the EAB's deployable mechanism on a full-scale, mixed-exhaust, medium-bypass-ratio business jet engine (Williams International FJ44-4A) operating at the upper end of typical approach throttle settings. …”
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231
Thermal control of gas turbine casings for improved tip clearance
Published 2015“…<p>A thermal tip clearance control system provides a robust and flexible means of manipulating the closure between the casing and the rotating blade tips in a jet engine, reducing undesirable tip leakage flows. …”
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232
Flow Management in Heat Exchanger Installations for Intercooled Turbofan Engines
Published 2011“…Intercooled high bypass jet engines offer a means to raise the engine pressure ratio, reduce cooling flow temperatures, reduce engine core size and thus to reduce the specific fuel consumption and increase specific power of the jet engine. …”
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233
High pressure nozzle guide vane cooling system flow characteristics
Published 2016“…<p>The continuous demand from the airlines for reduced jet engine fuel consumption results in increasingly challenging high pressure turbine nozzle guide vane (NGV) working conditions. …”
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234
Full-Scale Turbofan Demonstration of a Deployable Engine Air-Brake for Drag Management Applications
Published 2018“…The TRL-maturation effort involved design, fabrication, assembly, and ground-Testing of the EAB's deployable mechanism on a full-scale, mixedexhaust, medium-bypass-ratio business jet engine (Williams International FJ44-4A) operating at the upper end of typical approach throttle settings. …”
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235
Development of Materials for Extreme Environment Applications by Laser Powder Bed Fusion
Published 2023“…In this study, I identify two critical advanced energy systems that may be improved with materials produced by metal additive technology, fusion reactor vacuum vessels and jet engine turbine blades, and explore the practical usage of laser powder bed fusion to improve production of relevant materials. …”
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236
Development of high-temperature mini ceramic gas turbine rotor
Published 2015“…The current research focuses on fabrication and characterization of mini ceramic turbine rotor through materials design and innovation to improve fuel efficiency and reduce carbon emission of mini jet engine. A mini alumina ceramic turbine rotor has been successfully fabricated using a tailored colloidal process based on gelcasting technology. …”
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237
On the thermal behaviour of gas turbine filament seals
Published 2017“…The current life of the components is poor compared to the rest of the gas turbine, limiting the seals’ deployment, particularly in the jet engine at high temperature and pressure. Poor understanding of the seal installation response to frictional heat generated at the point of filament-rotor contact during operation has limited the ability to predict engine closures and hence seal behaviour and life. …”
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On atmospheric particulate deposition in gas turbines
Published 2021“…<p>Particulate deposition has become increasingly concerning for jet engine manufacturers, it can lead to a variety of problems, from stress corrosion cracking and the blocking of cooling holes in the turbine, to reduced stall margins for the engine. …”
Thesis