Journal of Engineering for Gas Turbines and Power
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EISSN:1528-8919|ISSN:0742-4795|Disc:The Journal of Engineering for Gas Turbines and Power publishes archival-quality papers in the areas of gas and steam turbine technology, nuclear engineering, internal combustion engines, and fossil power generation. It covers a broad spectrum of practical topics of interest to industry|Priority:12|Publisher:American Society of Mechanical Engineers|
Recent Submissions
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Effect of Rim Seal Geometry on Rotationally-Driven Ingestion
(The American Society of Mechanical Engineers (ASME), 2024)This study investigates turbine rim seal geometry effects within the rotationally-driven ingestion regime. Computations were performed with a wall-resolved unsteady Reynolds-averaged Navier–Stokes (URANS) model and a ... -
The Effect of Film Development on Primary Breakup in a Prefilming Airblast Atomizer
(The American Society of Mechanical Engineers (ASME), 2024)Liquid fueled gas turbines are likely to remain a dominant force in aviation propulsion for the foreseeable future, and therefore understanding the atomization process is key to meeting future emissions and performance ... -
A Phenomenological Thermal Spray Wall Interaction Modeling Framework Applied to a High-Temperature Ignition Assistant Device
(The American Society of Mechanical Engineers (ASME), 2024)Airborne compression ignition engines must operate with reliable ignition systems to achieve proper ignition at every cycle, particularly at high altitudes. Glow-plug-based ignition-assistant (IA) devices can provide the ... -
Predicting the Performance of Turbine Exhaust Diffuser-Collector Systems Across the Operating Range: Comparison of Lattice-Boltzmann Method Simulations With Experiments
(The American Society of Mechanical Engineers (ASME), 2024)The predictive capability of the lattice-Boltzmann very large eddy simulation (LBM-VLES) methodology was evaluated for industrial gas turbine exhaust diffuser-collector applications. The effort focused on evaluating the ... -
Effect of Impurities on the Compatibility of Steels in Supercritical CO2 at 450°–650°C
(The American Society of Mechanical Engineers (ASME), 2024)Direct-fired supercritical CO2 (sCO2) power cycles are a pathway to low-CO2 fossil energy but contain O2 and H2O in the sCO2 from combustion. The effect of impurities on structural steels was investigated at 450°–650 °C ... -
Numerical Analysis of Unsteady Phenomena in a Contra-Rotating Stage Based on the Reduction of Local Entropy Production
(The American Society of Mechanical Engineers (ASME), 2024)The primary purpose of this study is the reduction of local entropy production in a contra-rotating stage. As such, the unsteady flow phenomena and the impact of radial load distribution on these phenomena and local entropy ... -
Novel Combustion Instability Diagnosis Method With Upstream Pulsation of Repetitive Laser-Induced Plasmas
(The American Society of Mechanical Engineers (ASME), 2024)In this experimental study, we are presenting the ability of laser-induced plasmas with successive pulsation to identify combustion instabilities (CI) of a premixed lab-scale combustor. An acoustic disturbance equivalent ... -
Design Optimization of Blade Tip in Subsonic and Transonic Turbine Stages—Part II: Flow Physics and Augmented Aerothermal Integral Objective Function
(The American Society of Mechanical Engineers (ASME), 2024)In Part I, a companion paper of the two-part article, a subsonic turbine stage and a transonic one conditioned at the same Reynolds number, flow coefficient, loading coefficient and reaction, but two different exit Mach ... -
Design Optimization of Blade Tip in Subsonic and Transonic Turbine Stages—Part I: Stage Design and Preliminary Tip Optimization
(The American Society of Mechanical Engineers (ASME), 2024)Rotor blade tip has significant influence on turbine stage aerodynamics and heat transfer. Most previous efforts have been based on low-speed cascade settings. However, more recent research on transonic blade tips exhibits ... -
A Combined Experimental and Turbulence-Resolved Modeling Approach for Aeroengine Turbine Rim Seals
(The American Society of Mechanical Engineers (ASME), 2024)Ingress is the penetration of hot mainstream gas into the rotor–stator wheel-space formed between adjacent disks; a rim seal is installed at the periphery of the wheel-space. Purge flow is bled from the compressor and ... -
Assessment of Machine Learning Wall Modeling Approaches for Large Eddy Simulation of Gas Turbine Film Cooling Flows: An a Priori Study
(The American Society of Mechanical Engineers (ASME), 2024)In this work, a priori analysis of machine learning (ML) strategies is carried out with the goal of data-driven wall modeling for large eddy simulation (LES) of gas turbine film cooling flows. High-fidelity flow datasets ... -
Experimental Investigation on the Aerodynamic Instability Process of a High-Speed Axial-Centrifugal Compressor
(The American Society of Mechanical Engineers (ASME), 2024)Aerodynamic instability plays an important role in compressor design and may cause performance degradation and fatigue damage. In this paper, an experimental study on the evolution of aerodynamic instability is carried out ... -
A Study on the Oil Film Thickness Between the Lower Rail of Oil Control Ring and Lower Flank of Oil Control Ring Groove of an Engine
(The American Society of Mechanical Engineers (ASME), 2024)Lubricating oil consumption (LOC) of engines causes particulate matter in exhaust gas and abnormal combustion like pre-ignition which becomes a serious problem in hydrogen engines. Lubricating oil transports upward into ... -
Integrally Bladed Rotor Modal Identification Under Traveling Wave Excitation With High Density Measurement Points
(The American Society of Mechanical Engineers (ASME), 2024)Vibration testing of an integrally bladed rotor (IBR) is often completed through traveling wave excitation (TWE) bench tests composed of multiple, simultaneously excited inputs. Often, each blade has many output locations. ... -
Lean Flame Stabilization With Nanosecond Plasma Discharges in a Gas Turbine Model Combustor
(The American Society of Mechanical Engineers (ASME), 2024)This paper presents an experimental study of lean flames stabilization with nanosecond repetitively pulsed discharges. The two-stage, swirled-stabilized, multipoint injector BIMER operates at atmospheric pressure with ... -
Rework and Repair Options for Steam Turbine Components Subject to Flexible Operation
(The American Society of Mechanical Engineers (ASME), 2024)The increase in renewable energy penetration on the grid has accelerated the need to transition conventional fossil-based energy sources from their traditional base load operation to more flexible operational regimes. The ... -
Insights Into Frictional Brush Seal Hysteresis
(The American Society of Mechanical Engineers (ASME), 2024)Brush seals offer a superior sealing effectiveness compared to labyrinth seals. However, widespread use of brush seals is constrained by deleterious behaviors such as pressure-stiffening and hysteresis. For the latter, the ... -
Updating Turbomachinery Aerodynamics Teaching on an Undergraduate Course Using Three-Dimensional Design Tools
(The American Society of Mechanical Engineers (ASME), 2024)This paper outlines the update of a turbomachinery course to cover three-dimensional (3D) aerodynamics using a Reynolds-Averaged Navier Stokes solver. Prior to the activities outlined in this paper, the course was taught ... -
Validation and Assessment of a Hybrid VOF-Lagrangian Numerical Methodology for Turbulent Liquid Fuel Jets in High-Speed Crossflow
(The American Society of Mechanical Engineers (ASME), 2024)For gas turbine combustors, injecting liquid fuel in crossflow can achieve superior mixing characteristics to improve performance and reduce emissions. Robust numerical design tools are needed to accelerate the development ... -
Integrated Design of a Variable Cycle Engine and Aircraft Thermal Management System
(The American Society of Mechanical Engineers (ASME), 2024)The integrated design of a variable cycle engine (VCE) and an aircraft thermal management system (TMS) is investigated. The integrated system is designed using the multiple design point approach in order to achieve required ...