Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 261-280 of 9564
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Comparative Study on the Effect of Premixed Equivalence Ratio on Engine Characteristics of Ammonia-Fueled Engine Under Diesel Pilot Ignition Versus Spark Ignition Combustion Mode
(The American Society of Mechanical Engineers (ASME), 2025)The adoption of zero-carbon fuel like ammonia will play a key role in the achievement of carbon neutrality targets. This work reports a comparative study on the effect of premixed equivalence ratio (Φpremix aried from 0.8 ... -
The Effect of Tip Clearance on Fan Aeroelasticity Considering Acoustic Propagation Characteristics
(The American Society of Mechanical Engineers (ASME), 2025)Tip clearance is a critical parameter affecting fan performance and aeroelastic stability. This paper investigates the effect of tip clearance on fan aeroelasticity under different acoustic propagation characteristics ... -
Back to the Future: Revisiting Nonpremixed Designs for Fuel Flexible (H2/NH3/CH4), Low NOx Combustion
(The American Society of Mechanical Engineers (ASME), 2025)Future energy conversion devices need to operate in dynamic environments with stringent emissions requirements and various potential fuels, including hydrogen, ammonia, methane, and other light hydrocarbons from fossil or ... -
Techno-Economic Analysis and Optimal Supercritical Carbon Dioxide Power Cycle Configuration for Novel Concentrating Solar Power Plants Adopting Tubular Fluidized Particles Central Receivers
(The American Society of Mechanical Engineers (ASME), 2025)Concentrating solar power (CSP) plants, thanks to the use of cost-competitive thermal energy storage, can provide back-up power guaranteeing a zero-emission alternative to conventional power plants and offer balancing ... -
Inlet Preswirl Effects on the Leakage and Dynamic Characteristics of a Labyrinth Seal: Experimental Results and Computational Fluid Dynamics Analysis
(The American Society of Mechanical Engineers (ASME), 2025)Fluid-induced forces generated by annular gas seals have aroused considerable attention owing to their substantial impact on the rotordynamic stability of turbomachinery. Positive preswirl at the seal entrance has been ... -
Assessment of a Liquid Hydrogen Conditioning System for Retrofitting on Kerosene Designed Turbofans
(The American Society of Mechanical Engineers (ASME), 2025)As energy transition to alternative fuels for civil aviation is likely to be gradual, hydrogen’s first entry to service may be implemented on existing gas turbine engines. In this paper a novel liquid hydrogen conditioning ... -
Inlet Preswirl Effects on the Leakage and Dynamic Characteristics of a Labyrinth Seal: Experimental Results and Computational Fluid Dynamics Analysis
(The American Society of Mechanical Engineers (ASME), 2025)Fluid-induced forces generated by annular gas seals have aroused considerable attention owing to their substantial impact on the rotordynamic stability of turbomachinery. Positive preswirl at the seal entrance has been ... -
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 ... -
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 ... -
Measurement of Flame Describing Function of Jet Multinozzle Array Combustor and Prediction of Its Thermoacoustic Oscillation Frequency
(The American Society of Mechanical Engineers (ASME), 2025)To investigate the thermoacoustic instability characteristics of a jet multinozzle array combustor, this study experimentally measured the flame describing function (FDF) of the model combustor using methane fuel experiments, ... -
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 ... -
Identification and Dynamics of Coherent Structures in Double-Stage Swirling Flows Utilizing the Unsteady Reynolds Averaged Navier–Stokes and Large Eddy Simulation Methods
(The American Society of Mechanical Engineers (ASME), 2025)To study the coherent structure within a combustion chamber equipped with a double-stage swirler, unsteady Reynolds averaged Navier–Stokes (URANS) of realizable k–ε and renormalization group (RNG) k–ε, along with large ... -
Polynomial Chaos Expansion-Based Uncertainty Model for Fast Assessment of Gas Turbine Aero-Engines Thrust Regulation: A Sparse Regression Approach
(The American Society of Mechanical Engineers (ASME), 2024)Manufacturing tolerance uncertainties in gas turbine aero-engines are unavoidable, which adversely influence the thrust control performance of newly produced aero-engines. However, classic sample-based uncertainty ... -
Thermal History Coatings: Influence of Atmospheric Plasma Spray Parameters on Performance
(The American Society of Mechanical Engineers (ASME), 2024)Thermal history coatings (THCs) provide a novel method for measuring temperature profiles in the 900–1600 °C range. Given the steadily increasing firing temperatures in turbomachinery, it is crucial to understand temperature ...