-
281
Analysis of Energy Utilization and Losses for Jet-Propelled Vehicles
Published 2021-11-01“…The methodology is first developed for analyzing the energy utilization and entropy generation characteristics of jet engines without airframe considerations. This methodology, when combined with separate energy utilization analysis for an unpowered airframe, allows for the assessment of a powered vehicle. …”
Get full text
Article -
282
Close Nozzle Spray Characteristics of a Prefilming Airblast Atomizer
Published 2019-07-01“…The formation of pollutant emissions in jet engines is closely related to the fuel distribution inside the combustor. …”
Get full text
Article -
283
Novelty detection for the identification of abnormalities
Published 2000“…In this paper, we review our work on statistical models of normality in feature space and we explain how we have used novelty detection to identify unusual vibration signatures in jet engines. The main aim of the paper, however, is to introduce the concept of a neural network predictor as a model of normality. …”
Journal article -
284
Experimental and Numerical Investigation of Novel Acoustic Liners and Their Design for Aero-Engine Applications
Published 2022-12-01“…With respect to the potential application in jet engines, a structural–mechanical analysis considering the relevant load cases to compare and discuss the mechanical performance of a classical HR and the FHR concept liner is presented. …”
Get full text
Article -
285
Computational and experimental study of heat transfer in rotating ribbed radial turbine cooling passages
Published 2015“…This study investigates the effect of rotation on the Nusselt number distribution within ribbed radial turbine cooling passages representative of systems used in current jet engines. The results are unusual in that the cooling passage length to diameter ratio is engine representative and full distributions of local Nusselt number have been measured using the transient liquid crystal method. …”
Conference item -
286
An analysis of incomplete contacts in partial slip
Published 2018“…It is of importance in safety critical components subject to extreme loads such as in dovetail joints in jet engines. In order to accurately estimate the life of these components, accurate knowledge of the shear traction and differential strains at the contact interface is required. …”
Thesis -
287
Thermal shock resistance of yttrium aluminium oxide Y3Al5O12 thermal barrier coating for titanium alloy
Published 2020-03-01“…The high strength-to- weight ratio of titanium alloys allows their use in jet engines. However, their use is restricted by susceptibility to oxidation at high temperatures. …”
Get full text
Article -
288
Crystallographic Origin of Phase Transformation and Lamellar Orientation Control for TiAl-Based Alloys
Published 2022-04-01“…However, lamellar orientation control is crucial to the development of a polysynthetic twinned single crystal structure in TiAl-based alloys for jet engines or other high-temperature systems. In this study, β-solidifying TiAl alloys were used to study the relationships between the lamellar structure and the phase transformation process under directional solidification (referred to as the directional phase transformation, DPT). …”
Get full text
Article -
289
Are Titania Photocatalysts and Titanium Implants Safe? Review on the Toxicity of Titanium Compounds
Published 2020-10-01“…Titanium and its compounds are broadly used in both industrial and domestic products, including jet engines, missiles, prostheses, implants, pigments, cosmetics, food, and photocatalysts for environmental purification and solar energy conversion. …”
Get full text
Article -
290
Methodology and Case Study for Validation of Aircraft-Induced Clouds from Hyperspectral Imagery
Published 2022-08-01“…Aircraft-Induced Clouds (AICs), colloquially called contrails, form from the emission of soot from jet engines during cruise flight in favorable atmospheric conditions. …”
Get full text
Article -
291
Microstructure and Hardness of Spark Plasma Sintered Inconel 625-NbC Composites for High-Temperature Applications
Published 2021-08-01“…The study focuses on obtaining Inconel 625-NbC composites for high-temperature applications, e.g., jet engines, waste-to-energy combusting systems or gas engine turbines, and characterizing them in terms of their microstructure and hardness improvement. …”
Get full text
Article -
292
Modeling Multivariate Spray Characteristics with Gaussian Mixture Models
Published 2023-09-01“…With the increasing demand for efficient and accurate numerical simulations of spray combustion in jet engines, the necessity for robust models to enhance the capabilities of spray models has become imperative. …”
Get full text
Article -
293
Combustion of Synthetic Jet Fuel: Chemical Kinetic Modeling and Uncertainty Analysis
Published 2016“…This research effort focused on combustion of Fischer–Tropsch synthetic jet fuel (S-8) in vitiated air at conditions relevant to jet engines, augmentors, and interturbine burners (T=650–1700 K P=1–20 atm, and Φ=0.5–2 in air). …”
Get full text
Article -
294
Experimental study of impact of in-service deterioration on thermal performance of high-pressure nozzle guide vanes
Published 2022“…<p>In this paper, we analyze the impact of in-service deterioration on the overall thermal performance (metal effectiveness) of heavily cooled high-pressure nozzle guide vanes of a design typical of large civil jet engines. We study 15 deteriorated parts (increased surface roughness, thermal barrier coating spallation and sintering, damaged film cooling holes, and trailing edge burn-back) from operational engines and compare their thermal performance to that of equivalent new parts. …”
Journal article -
295
Analysis of recuperation supercritical carbon dioxide cycle for heat recovery of an aircraft engine
Published 2022“…Therefore, this study will focus on waste heat recovery technology for aircraft engine, by applying a recuperation-supercritical carbon dioxide cycle in order to reduce jet engines’ fuel consumption and minimizing fuel expenses. …”
Article -
296
Unsteady free convection flow of water-based carbon nanotubes due to non-coaxial rotations of moving disk
Published 2021“…Its implementation in a non-coaxial rotating system has benefited from designing a mixer machine with two stirrer blades, cooling fan, and jet engines. This study analytically investigates the free convection of unsteady non-coaxial rotating nanofluid flow through a moving disk. …”
Article -
297
Design and development of thermodynamics apparatus using design for manufacture and assembly (DFMA) methodology
Published 2006“…Mechanical engineers use thermodynamics principles in their study to design a wide variety of energy system such as jet engines and rockets, refrigeration system, air conditioning system, chemical process and power plant. …”
Get full text
Thesis -
298
Handbook of Internal Combustion Engines /
Published 2012“…A second class of internal combustion engines use continuous combustion: gas turbines, jet engines and most rocket engines, each of which are internal combustion engines on the same principle as previously described. …”
Get full text
software, multimedia -
299
Characterization of Particle Emissions from a DGEN 380 Small Turbofan Fueled with ATJ Blends
Published 2021-06-01“…The particles formed in the nucleation mechanism dominate PM emission, which is characteristic of jet engines. Thus, number-based particle size distributions (PSDs) exhibit a single mode log-normal distribution. …”
Get full text
Article -
300
Investigating the efficiency of the microwave heating process for the carbothermic synthesis of cobalt/nickel alloys
Published 2024-02-01“…On the other hand, cobalt/nickel alloy, is an important alloy with extensive applications in jet engines, gas turbines, and petroleum refining. The present research addressed the efficiency of the microwave heating process for the carbothermic synthesis of cobalt/nickel alloys. …”
Get full text
Article