Journal of Turbomachinery: Recent submissions
Now showing items 141-160 of 4519
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Optimization of Tip Seal Grooves for Aerodynamic and Durability Improvements of Small-Core Turbines
(The American Society of Mechanical Engineers (ASME), 2024)While the clearance gap between the turbine rotor tip and the outer case in a gas turbine engine is necessary for the operation of the machine, the gap is kept as small as possible due to the detrimental effect of the flow ... -
Introduction of Axisymmetric Grooves as a Tip Seal Treatment for Small-Core Turbines
(The American Society of Mechanical Engineers (ASME), 2024)The aerodynamic penalties associated with the tip gap flow in axial turbines remain a challenging problem for turbine manufacturers. As modern gas turbines with small-core architectures are brought online, the influence ... -
Effect of Blockages on Film Effectiveness on the Pressure Surface of a Turbine Blade
(The American Society of Mechanical Engineers (ASME), 2025)An experimental and numerical study was conducted on fan-shaped holes on the pressure surface of a high-pressure turbine blade. Blockages in these film holes can arise through dirt accumulation as well as erosion of the ... -
Model for Local Cavitation Instabilities in Two-Bladed Turbopump Inducers
(The American Society of Mechanical Engineers (ASME), 2024)Various local cavitation instabilities in turbopump inducers (e.g., alternate blade cavitation, supersynchronous rotating cavitation) have been previously experimentally identified. However, a model that is capable of ... -
Heat Transfer Enhancement in Pulsating Flows: A Bayesian Approach to Experimental Correlations
(The American Society of Mechanical Engineers (ASME), 2024)This research focuses on improving the modeling of heat transfer effects in pulsating exhaust flows. We address the challenges of understanding oscillating flow by employing the Metropolis–Hastings Markov Chain Monte Carlo ... -
Associate Editor's Recognition
(The American Society of Mechanical Engineers (ASME), 2025)The Editor-in-Chief of the ASME Journal of Turbomachinery would like to thank all the Associate Editors for their expertise and time reviewing manuscripts in 2024. Serving as an Associate Editor for the journal is a critical ... -
Control of Shroud Leakage Loss and Windage Torque in a Low-Pressure Turbine Stage
(The American Society of Mechanical Engineers (ASME), 2024)As new aeroengine architectures move to larger diameter fans and rotors, the associated increase in weight will need to be counterbalanced by lighter, more compact, and more efficient low-pressure turbines (LPT). Efficiency ... -
Performance of Rough-Ribbed Low-Pressure Turbine Blades Under Varying Loading and Operating Conditions
(The American Society of Mechanical Engineers (ASME), 2024)Recent research has demonstrated the effectiveness of riblets (streamwise aligned grooves) in reducing the profile loss of low-pressure turbine (LPT) blades under high-lift (HL) loading. In this research, we pursue the ... -
Reviewer’s Recognition
(The American Society of Mechanical Engineers (ASME), 2025)The Editor-in-Chief and Editorial Board of the ASME Journal of Turbomachinery would like to thank all the reviewers for volunteering their expertise and time reviewing manuscripts in 2024. Serving as reviewers for the ... -
Inverse Design of Compressor/Fan Blade Profiles Based on Conditional Invertible Neural Networks
(The American Society of Mechanical Engineers (ASME), 2025)Compressors/fans are crucial in modern aircraft engines, providing power, thrust, and combustion efficiency. Blade profile design is a crucial aspect of the overall process, often involving multiple constraints. Current ... -
Design Guidelines for Inertial Particle Separators
(The American Society of Mechanical Engineers (ASME), 2025)Inertial particle separators (IPS) are air-cleaning devices integrated with air intakes or engine inlets to remove potentially harmful particles through the action of centrifuging. Their geometry is defined by a mean gas ... -
An Unsteady Deposition Model for Evaluating CMAS Nonuniform Deposition Behavior and Aerodynamic Performance Degradation Under Hot Streak Clocking Effect
(The American Society of Mechanical Engineers (ASME), 2025)An unsteady model has been developed for evaluating deposition behavior and aerodynamic performance degradation under the impact of hot streak. The results reveal that hot streak alters the force exerted by the mainstream, ... -
High-Speed Rotating High-Pressure Turbine Blade Thermal Imaging of a Full-Scale Cooled 1 + 1/2 Stage Turbine in a Short Duration Transient Test Facility
(The American Society of Mechanical Engineers (ASME), 2025)This article presents results from the original development of a long wavelength infrared (LWIR) high-pressure turbine (HPT) blade thermal imaging system on a Full-Scale Cooled 1 + 1/2 Stage Rotating Turbine in the Air ... -
Aerodynamic Performance Prediction for Wide-Incidence Turbines Using Graph Neural Network Models Driven by Small-Scale Experimental Data
(The American Society of Mechanical Engineers (ASME), 2024)To rapidly and accurately predict turbine rotor blade losses within a wide range of incidences (−50–30 deg), graph neural networks (GNNs) are utilized to predict the aerodynamic parameters of two-dimensional turbine blades ... -
Large Eddy Simulations of a High-Speed Low-Pressure Turbine Cascade at Subsonic and Transonic Mach Numbers
(The American Society of Mechanical Engineers (ASME), 2025)High-speed low-pressure turbines (HS-LPTs) are one key turbomachinery component in ultra-high bypass ratio geared turbofan engines. The HS-LPT typically operates at transonic exit Mach numbers and low-Reynolds numbers. ... -
Analysis of Complex Total Pressure Distortion Screens Using One-Dimensional Loss Data
(The American Society of Mechanical Engineers (ASME), 2025)Producing a screen for use in generating an accurate, complex total pressure distortion involves solving two distinct problems. First, the basic loss characteristics of wire mesh screens must be established. Second, the ... -
Nature of Transonic Compressor Flow and Its 3D Design Implications
(The American Society of Mechanical Engineers (ASME), 2025)A key problem in transonic compressor and fan design is that although a 3D description of the flow is necessary to correctly capture the shock, accounting for it during the sectional design is difficult because the key ... -
Impact of Trailing Edge Damage on Nozzle Guide Vane Aerodynamic Performance
(The American Society of Mechanical Engineers (ASME), 2025)In this paper, we consider the impact of trailing edge burn-back on the aerodynamic performance of cooled transonic high-pressure nozzle guide vanes. We consider four levels of burn-back ranging from new parts to severely ... -
Conjugate Study of Aerothermodynamics of Internal Ridged-Wall Enhanced Swirl-Film Cooling for Gas Turbine Blade Leading Edge
(The American Society of Mechanical Engineers (ASME), 2025)This article introduces a high-performance swirl-film conjugate cooling scheme with the novel ridged wall for the leading edge of a gas turbine blade and presents a numerical study of the aerothermal characteristics of the ... -
A Novel Design Concept for Highly-Loaded Compressor Airfoils
(The American Society of Mechanical Engineers (ASME), 2025)Compressor blade design has always faced the challenge of meeting the performance requirements of the compressor while keeping losses to a minimum. Over the past decades, a number of different airfoil types have been ...