Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 241-260 of 9298
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Operation of a Compression Ignition Engine at Idling Load Under Simulated Cold Weather Conditions
(The American Society of Mechanical Engineers (ASME), 2025)Heavy-duty compression ignition (CI) engines can be subject to long periods of idling during their duty cycles. In colder climates, getting the engine and exhaust aftertreatment (EAT) system to ideal operating temperatures ... -
Effects of Recess Depth and Orifice Diameter on Pneumatic Hammer Instability in Hydrostatic Thrust Bearings: Analysis and Experimental Validation
(The American Society of Mechanical Engineers (ASME), 2024)Hydrostatic thrust bearings (HTBs) are required in various turbomachinery systems due to their substantial load capacity and superior rotor axial positioning capabilities, which minimize friction and heat generation. ... -
Adaptation of the Low Dissipation Low Dispersion Scheme for Reactive Multicomponent Flows on Unstructured Grids Using Density-Based Solvers
(The American Society of Mechanical Engineers (ASME), 2024)The low dissipation low dispersion (LD2) second-order accurate scheme is effective for scale-resolving simulations in finite volume computational fluid dynamics (CFD) solvers, thanks to its combination of a skew-symmetric ... -
An Adjustable Elastic Support Structure for Vibration Suppression of Rotating Machinery
(The American Society of Mechanical Engineers (ASME), 2025)The dynamic characteristic of a rotor-support system plays a crucial role in the operational efficiency and longevity of rotating machinery such as gas turbines. Traditional support structures with the fixed-parameter ... -
Review of the Impact of Hydrogen-Containing Fuels on Gas Turbine Hot-Section Materials
(The American Society of Mechanical Engineers (ASME), 2025)In an effort to achieve worldwide decarbonization goals, a range of low-carbon fuels is being proposed for use in power-generation gas turbines. Two promising fuels are hydrogen and ammonia, which do not produce any CO2 ... -
Study of Tandem Rotor Dual Wake Interaction With Downstream Stator Under Unsteady Numerical Approach
(The American Society of Mechanical Engineers (ASME), 2024)This paper highlights the intricate rotor–stator interaction between a tandem bladed rotor and a single-bladed stator in the light of unsteady numerical simulations. A low-speed tandem bladed compressor stage has been ... -
Experimental and Numerical Study on NOx Emissions Characteristics in a Coaxial Staged Combustor
(The American Society of Mechanical Engineers (ASME), 2024)A deep understanding of NOx formation characteristics and correlations can significantly enhance the operational adjustment efficiency of gas turbine combustors. To reduce pollutants emissions, this study proposed a coaxial ... -
Predictive Zero-Dimensional Combustion Modeling in Internal Combustion Engines With Residual Fraction and Exhaust Gas Recirculation
(The American Society of Mechanical Engineers (ASME), 2025)The combustion process in spark ignition (SI) and compression ignition (CI) engines plays a significant role in ascertaining engine performance, efficiency, and emissions. As the automotive industry faces challenges related ... -
Experimental Study on Liquid Jet Trajectory in Cross Flow of Swirling Air at Elevated Pressure Condition
(The American Society of Mechanical Engineers (ASME), 2024)Motivated by fuel atomization applications in gas turbine combustors, this paper presents an experimental examination of liquid jet trajectory and spray dynamics in crossflow of swirling air, at elevated pressure conditions. ... -
Validation of a Methodology to Assess the Flutter Limit-Cycle Oscillation Amplitude of Low-Pressure Turbine Bladed Disks—Part I: Mach Number Effects
(The American Society of Mechanical Engineers (ASME), 2024)This paper presents a methodology to estimate the vibration amplitude of fluttering low-pressure turbine (LPT) blades saturated due to friction effects. The study utilizes an analytical model that balances aerodynamic work ... -
Numerical Analysis of a Two-Phase Turbine: A Comparative Study Between Barotropic and Mixture Models
(The American Society of Mechanical Engineers (ASME), 2024)Two-phase turbines offer the potential to significantly enhance the performance of power generation and refrigeration systems. However, their development has been hindered by comparatively lower efficiencies resulting from ... -
Reversionary Control Modes for the Mitigation of Failures in a Partially Turboelectric Aircraft Propulsion System
(The American Society of Mechanical Engineers (ASME), 2024)In support of emission and fuel burn reduction goals, the aviation industry is actively pursuing the advancement of electrified aircraft propulsion (EAP) technology. This includes turbo-electric and hybrid electric propulsion ... -
A Review of Numerical Methodologies for Predicting Rotating Stall and Surge in High-Speed Centrifugal Compressors
(The American Society of Mechanical Engineers (ASME), 2024)High-speed supersonic radial compressors are a critical enabling technology for meeting the requirements of future aviation-propulsion and thermal-management systems. These turbomachines must be designed to be both efficient ... -
Performance Improvement of a Heat Sink for Battery Thermal Management System
(The American Society of Mechanical Engineers (ASME), 2024)Dissipating heat generated by onboard battery systems is a key thermal management challenge for hybrid/electric aircraft. The National Research Council Canada is collaborating with Calogy Solutions, Ltd. (Sherbrooke, Quebec, ... -
Investigation of the Coupling Between the Dynamics of Vortical Structures and Flame Stability in Bluff-Body Premixed Combustion Using Extended Spectral Proper Orthogonal Decomposition
(The American Society of Mechanical Engineers (ASME), 2024)Large eddy simulation data of a bluff-body stabilized flame are analyzed using spectral proper orthogonal decomposition (SPOD) to investigate: (i) the role of flame-vortex interactions in the dominant flow dynamics and ... -
Synergetic and Performance Characteristics of a High-Speed Precooled Propulsion Concept
(The American Society of Mechanical Engineers (ASME), 2024)Precooled air-breathing cycles are promising candidates to power future high-speed flight as well as single-stage-to-orbit vehicles, due to their increased efficiency over contemporary propulsion systems and launch vehicles. ... -
A Comprehensive Thermodynamic Analysis of Gas Turbine Combined Cycles With Pressure Gain Combustion Based on Humphrey Cycle
(The American Society of Mechanical Engineers (ASME), 2024)The paper describes a comprehensive thermodynamic analysis of the gas turbine combined cycle (CC) equipped with pressure gain combustion (PGC) based on the Humphrey cycle. PGC is represented by a steady-state zero-dimensional ... -
Generative Design of a Gas Turbine Combustor Using Invertible Neural Networks
(The American Society of Mechanical Engineers (ASME), 2024)The need to burn 100% H2 in high efficient gas turbines featuring low NOx combustion in premix mode requires the complete redesign of the combustion system to ensure stable operation without any flashback. Since all engine ... -
An Experimental Study on the Effect of Intake Pressure on a Natural Gas-Diesel Dual-Fuel Engine
(The American Society of Mechanical Engineers (ASME), 2024)Natural gas-diesel dual-fuel (NDDF) combustion can be a viable method to reduce diesel usage in compression ignition (CI) internal combustion engines. Potential benefits of NDDF engines in comparison to conventional diesel ... -
Dynamic Response of a Pivot-Mounted Squeeze Film Damper: Measurements and Predictions
(The American Society of Mechanical Engineers (ASME), 2025)Squeeze film dampers (SFDs) are widely used to reduce vibration levels in rotating equipment. These devices are installed in series with bearings and are subjected to precessional motions with the inner and outer damper ...