Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 201-220 of 9564
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Comparative Analysis of Pre- and Post-Catalyst Exhaust Gas Recirculation Systems for Turbocharged Spark-Ignition Engines
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Low-pressure exhaust gas recirculation (LP-EGR) systems are widely used in current spark-ignition engines due to benefits in knock control, heat transfer losses, and pumping work. Usually, the gases are extracted ... -
An Aeroengine Internal Field Prediction Method Based on Principal Orthogonal Decomposition Dimensionality Reduction Integrated With Machine Learning
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. To overcome the limitations of one-dimensional calculation and achieve rapid prediction of internal fields in aeroengines, this study adopts a method combining proper orthogonal decomposition and machine learning. ... -
Preliminary Design of Integrated Power and Thermal Management Systems for Hybrid Electric VTOL Aircraft Architecture
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Hybrid and fully electric vertical takeoff and landing (VTOL) aircraft present promising solutions to improve urban traffic congestion but face challenges such as limited power and energy density and stringent ... -
Dynamic Characterization of Annular Gas Seals With Additively Manufactured Textured Patterns
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This paper presents experimental results on the leakage and rotordynamic performance of 3D-printed annular damper seals configured with diamond patterns. Textured seals, such as hole-pattern (HP) stator seals, ... -
A Novel Measurement Method for Investigating the Lift-Off Behavior of Gas Polymer Bearings
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Gas polymer bearings (GPBs) are innovative machine elements for supporting high-speed rotors in oil-free turbomachinery applications. By using air as the lubricating medium, GPBs operate without contamination ... -
Rotordynamic Characteristics for a Tooth-On-Rotor Long Labyrinth Seal Using Computational Fluid Dynamics
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The paper compares experimentally derived dynamic force coefficients for a tooth on rotor (TOR) labyrinth seal (LS) against predictions obtained from URANS (Unsteady Reynolds Averaged Navier–Stokes) computational ... -
Performance Test of a 9 MW-Class Three-Stage Axial CO2 Compressor
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Performance testing of a three-stage 9 MW axial CO2 compressor has been successfully completed at the closed-loop CO2 compressor test facility at the University of Notre Dame. The design speed, inlet pressure, ... -
Analysis of Blade Tip Timing Data From Nonuniformly Spaced Sensors by Discrete Wavelet Transform
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. A major drawback of the blade tip timing (BTT) method is its inherent undersampling of the vibration data. The consequence of this characteristic is that the spectrograms computed using these data are very difficult ... -
Impact of Fuel Conditioning and Combustor Injection Temperature on a Hydrogen Turboprop
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Reducing aviation emissions demands revolutionary propulsive technologies, and gaseous hydrogen (H2) combustion offers high potential. However, using this fuel in aero engines requires complex fuel conditioning ... -
Long-Term Lifetime Validation of Hot Turbine Guide Vanes Manufactured by Laser Powder Bed Fusion
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The advent of additive manufacturing (AM), specifically laser powder bed fusion (LPBF), has revolutionized the production of gas turbine components. This paper presents a comprehensive study on the application ... -
Revealing Fuel Effects on Catalyst Heating Operation Performance in an Optical Diesel Engine
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Diesel oxidation catalysts and selective catalytic reduction systems are two of the most commonly used exhaust after treatment methods, which aid on- and off-road diesel engines to comply with stringent emissions ... -
Dynamic Characteristics of Ion Concentration Distribution for Combustion Instability With Different Injection Schemes
(The American Society of Mechanical Engineers (ASME), 2025)The performance of aerospace vehicles directly depends on the operation of large combustion propulsion devices. Combustion instability has long been an inevitable and challenging problem in the development of large combustion ... -
Method for Predicting the Damping Ratio of Ring Dampers in Radial Standing Waves
(The American Society of Mechanical Engineers (ASME), 2025)Blisks are utilized by most modern aircraft turbine engines to reduce the weight of rotors and eliminate air leakage between platforms. Ring dampers are widely used to reduce the vibration of blisks and avoid high-cycle ... -
Blade Designs for Improved Multi-Phase Performance in sCO2 Compressors: Optical Diagnostics in sCO2 and Experimental Evaluation With Particle Image Velocimetry
(The American Society of Mechanical Engineers (ASME), 2025)This paper presents the second part of a study in which the leading edge and suction surface of a compressor blade was modified to delay onset of phase change for sCO2 compressors operating near the critical point. Using ... -
Design and Dynamic Analysis of Different Balancing Mechanisms for Development of a Small Direct-Injection Spark-Ignition Optical Engine
(The American Society of Mechanical Engineers (ASME), 2025)Improving the performance of small engines, which have widespread use in two- and three-wheeled vehicles in several countries, is vital. Recently, direct-injection spark-ignition (DISI) technology, used on moderate- to ... -
Multiscale-Kolmogorov–Arnold Network Surrogate Modeling Approach for Dynamic Stiffness Prediction of a Heavy-Duty Gas Turbine
(The American Society of Mechanical Engineers (ASME), 2025)The flexibility of the casing plays an important role in the dynamic response of the gas turbine rotor. The effect of the support parameters on the dynamic stiffness of the supporting components must be considered. While ... -
On the Mechanism of Rotating Stall in a Boundary Layer Ingesting Fan
(The American Society of Mechanical Engineers (ASME), 2025)Next-generation boundary layer ingesting (BLI) aircraft can achieve significant reductions in fuel burns compared to conventional aircraft. One of the challenges for BLI aircraft is the need for the fan to continuously ... -
Investigating the Combustion Performance of Dual Fuel Combustion With Diesel and Port Injected Hydrogen in A Large Bore Locomotive Engine
(The American Society of Mechanical Engineers (ASME), 2025)The heavy-duty transportation sector has primarily relied on conventional diesel combustion engines given their reliability and high thermal efficiency relative to spark ignition engines, but increased focus on reducing ... -
Critical Appraisal of Integrated Computational Fluid Dynamics/Surface Roughness Models for Additive Manufactured Swirl Burners
(The American Society of Mechanical Engineers (ASME), 2025)Additive manufacturing (AM) technology can create complex parts that are otherwise impractical to manufacture by traditional methods. However, the process often results in rough and irregular surfaces that can affect ... -
Generative Deep Learning on Images of Thermo-Mechanical Simulation Results
(The American Society of Mechanical Engineers (ASME), 2025)This paper presents a novel methodology that combines engineering simulation and machine learning for the thermo-mechanical design of a secondary air system double-sided seal in an aero engine turbine subassembly. Secondary ...