Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 21-40 of 9564
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A Flow Physics Approach to Determining Critical Angle of Inlet Total Pressure Distortion for a Centrifugal Compressor
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Characterizing the critical circumferential angle of total pressure inlet distortion, where compressor performance and stability are degraded, is of paramount importance for gas turbine inlet integration. This ... -
Numerical Investigation on Influence of Midpassage Gap Leakage on Ingestion and Flow Characteristics in the Downstream Wheelspace of the 1.5-Stage Turbine
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The ingestion and flow in the disk cavity significantly affect the performance and the operating safety of turbines. This paper focuses on the 1.5-stage turbine downstream wheelspace and conducts a numerical ... -
Experimental and Numerical Study on Flow and Heat Transfer Characteristics of a Dual-Stage Brush Seal With Pressure Equalization Holes on Backing Plate
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Dual-stage brush seal exhibits issues of imbalanced pressure drop at bristle pack between stages and high temperature resulting from frictional heat accumulation at bristle tips. In this paper, a dual-stage brush ... -
Optimization of Variable Cycle Engine Throttle Schedules Using Gradient-Free Methods
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The variable cycle engine (VCE) represents a significant advancement in jet propulsion technology by offering enhanced operational flexibility through the integration of variable geometries within the engine's ... -
OH-PLIF Measurements for Micromixed Flames in a Multi-Injector Burner at Elevated Pressures and Temperatures
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. A multi-injector combustion system consisting of seven premix/micromix injectors is studied in the high-pressure optically accessible combustion rig (OACR), which is commissioned for the first time at the National ... -
A Comparative Study of Component Surrogate Model Approximation for Holistic, Multidisciplinary Optimization of High Temperature Heat Pumps
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Fast and reliable design methods are essential to reach the highest possible efficiency of high-temperature heat pumps and enable their full potential. The heat pump's performance is strongly dependent on the ... -
Numerical and Experimental Investigation of Inter-Stage Bleed in Axial Compressors of Industrial Gas Turbine
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. To provide a practical design basis for the compressor bleed system design, this paper uses numerical simulation and rig tests to evaluate the influence of bleed system design parameters on bleed performance. The ... -
Design and Numerical Investigation of a Swirl-Stabilized Hydrogen Burner for Aero Engine Applications
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. In recent years, the potential of hydrogen as an alternative fuel for the decarbonization of the aeronautical sector has been widely recognized in both scientific and industrial combustion communities. Due to its ... -
Characteristic Time Scale Modeling of Gas Turbine Combustor Ignition Limits at Sub Idle Conditions
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This paper presents a study of aerospace gas turbine combustor operability performance to capture the lean boundaries of ignition at sub idle conditions. Presented in previous literature, the characteristic time ... -
On the Performance of Hybrid Thrust Bearings: Recess Design and Lubricant Influences
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Hybrid thrust bearings are essential components in high-performance turbomachinery, particularly in applications experiencing significant static axial loads or dynamic axial load fluctuations. Their ability to ... -
Effect of Blade Scalloping on Performance of Inward Radial Flow Supercritical CO2 Turbines
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Research on submegawatt supercritical CO2 (sCO2) power blocks featuring single inward flow radial (IFR) turbines has gained momentum on account of growing demand for waste heat recovery applications. A key challenge ... -
On Runway Foreign Object Ingestion With a Variable Pitch Fan in Reverse Thrust Mode
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The characterization and quantification of runway foreign object ingestion (FOI) at the end of the landing run with a variable pitch fan (VPF) in reverse thrust mode are described in this work. This is achieved ... -
Effect of Finite Mixing Timescales in Nonpremixed Rich Relaxation Lean Combustors
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. A novel nonpremixed rich relaxation lean (NRRL) combustor concept was recently introduced as a method to enable fuel- and operational-flexibility in gas turbines. To review, the multistage combustor starts with ... -
Azimuthal Instabilities Arising in an Annular Combustor Equipped With Pure Hydrogen Injection Units
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. At a stage where hydrogen is being considered as a possible fuel for aeroengines or industrial gas turbines, it is important to examine operability issues and in particular, those induced by the coupling between ... -
Numerical Optimization of an Alkali-Metal Heat Pipe for Use in Supercritical Carbon Dioxide Power Generation
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The need for clean and sustainable energy in recent years has led to an increased demand for fusion reactors and supporting technology. Supercritical Carbon Dioxide (sCO2) power cycles are an efficient, compact, ... -
Inventory Management and Control Options for Transient Operation of Supercritical Carbon Dioxide Brayton Cycles
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Supercritical carbon dioxide (sCO2) power cycles have emerged as a promising technology for a variety of applications involving transient operations. These include load-following power plants and systems operating ... -
Capturing Mistuning Within Shrouded Integrally Bladed Disks With the Generalized Model of Mistuning
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Bladed disks and blisks are designed to be cyclic structures that ideally have identical sectors. There will, however, always be mistuning, which is blade-to-blade differences that break the cyclic symmetry of ... -
Experimental Investigation of a Non-Premixed H2/AIR Swirled Flame at Elevated Pressure Using Optical Diagnostics
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Hydrogen is a promising solution for decarbonizing aviation, but its unique properties pose technical challenges for its integration into traditional combustion systems. This requires the development of innovative ... -
Pre-Design and Analysis of a Military Hybrid High-Pressure Turbine
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Increasing aero-engine turbine inlet temperatures and stagnating operational limits of nickel-based superalloys creates the need for new materials and cooling technologies. Ceramic matrix composites (CMCs) can ... -
Passively Enhancing Gas Thrust Bearing Performance Through an Inexpensive and Straightforward Design Optimization of the Rotor Disk
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This article presents an inexpensive passive approach for reducing the thermal bending deformations of rotor disks in gas thrust bearings, featuring an optimized design for the rotor disk. Small geometry changes ...