Journal of Turbomachinery: Recent submissions
Now showing items 21-40 of 4519
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A Corner Separation Sensing Method Based on Shallow Neural Networks in Compressor Cascade
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. In many applications, it is important to obtain real-time flow state from limited sensors for the development of closed-loop flow control technology. In this work, we propose a method that combines a shallow ... -
Elevated Mainstream Mach Number Effects on Shaped Gas Turbine Film Cooling Holes
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Compressible flow fields associated with engine realistic high-speed conditions can have a significant impact on the performance of shaped film cooling holes in gas turbines. Such flow fields are dependent upon ... -
Film-Cooling Effectiveness of Diffusion Slot Hole on Turbine Blade Tip With a Leading Edge Open Squealer
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This paper focuses on the effects of leading edge film holes on the film-cooling effectiveness of the blade tip, using pressure-sensitive paint technique. A leading edge open squealer was introduced to utilize ... -
The Design of Aspirated Stators for Compressor Bleed
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Gas turbine operation requires air to be extracted from the primary compressor flow path for a variety of purposes, including turbine cooling and off-design stage matching. This “bleed air” is typically extracted ... -
Investigation of Rotating Stall in Vaneless Diffuser of Single-Stage Centrifugal Blower Using Wall-Resolved Large Eddy Simulation
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Centrifugal turbomachinery, including centrifugal blowers, the focus of this study, is utilized across a wide range of fields and applications, from industrial plants to home appliances. The market demands higher ... -
Performance and Evaluation of a Thermally Optimized Gas Turbine Nozzle
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This study evaluated the overall cooling effectiveness of a newly designed turbine airfoil using optimized internal and external cooling features. A symmetric airfoil, which incorporated advanced cooling schemes ... -
Experimental Investigation of In-Hole Evolutionary Flow Behavior in a 777-Shaped Jet in Crossflow Via Refractive Index Matching-Based TR-PIV Technique
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The 777-shaped jet in crossflow (JICF) has been widely used in film cooling applications. To elucidate in-hole flow behavior and its evolution, time-resolved particle image velocimetry and refractive index matching ... -
Design and Fabrication of a Thermally Optimized Gas Turbine Nozzle
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The goal of this study was to develop a highly cooled, turbine nozzle designed for use in extremely high temperatures exhausting from a hydrogen-fueled combustor. This design was based on the nozzle being ... -
Multiscale Data-Driven RANS Closure for Trailing Edge Cutback Film Cooling Flows
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This article addresses the steady Reynolds-averaged Navier–Stokes (RANS) simulation of turbomachinery flows with spectral overlap. A multiscale RANS closure model is proposed and applied to trailing edge (TE) ... -
Setting Robust Manufacturing Tolerances for Turbine Trailing Edge Film Cooling
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The trailing edge of a high-pressure turbine blade presents a challenge to turbine cooling engineers. Its thin nature requires that film cooling holes are manufactured through electrode discharge machining (EDM), ... -
Aerothermal–Structural Optimization of a High-Pressure Turbine Rotor With Robustness Evaluation to in-Service Deterioration
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This article presents a multidisciplinary optimization conducted on the high-pressure turbine rotor of a commercial turbofan engine. The rotor geometry is parametrized using a compact orthogonal design space, and ... -
An Improved Mesh-Conversion Methodology for Particulate Deposition Simulations in Gas Turbines
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Dynamic deposition of fine particulate matter inside gas turbine engines leads to changes in geometrical morphology and degradation of aero-thermal performance. Due to physical and optical limitations in existing ... -
Partial Admission Loss Modeling of Radial Inflow Turbines
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Radial inflow turbines (RITs) are widely used in aerospace, energy, and chemical industries, and often operate under challenging conditions such as partial admission (PA). However, there is a paucity of fast and ... -
Application of the Pseudo-Spectral Time-Marching Method to Blade Response Under Upstream Perturbations
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Harmonic balance (HB) or time-spectral (TS) methods are commonly used as an alternative to conventional implicit approaches to reduce the computational cost in time-periodic flows, such as turbomachinery analyses. ... -
Fan Optimization Under Distorted Boundary Layer Ingesting Flow
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Aviation sustainability is a significant consideration in the designs of future generation aircraft. One way to achieve aviation sustainability is by reducing the overall drag acting on the aircraft. One approach ... -
A Mesh Motion Methodology for Efficient Flutter Simulations
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Aeroelastic simulations of turbomachinery involve complex fluid–structure interaction analyses, which require solving three problems simultaneously: the fluid problem, the structural problem, and the mesh motion ... -
Surge Inception Point Analysis Using the Greitzer Model for Centrifugal Compressor
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. For modern centrifugal compressors, the widest operating range is desired. At a low mass flowrate, the operating range is limited by the surge phenomenon described by the Greitzer model. It is widely believed ... -
Non-Intrusive Ground Force Decomposition Applied to Turbofans—Part II: Filtered Rayleigh Scattering Application
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This study applies an innovative control volume analysis method combined with filtered Rayleigh scattering (FRS) to perform force measurements in the exhaust flow of a Honeywell TFE731-2 turbofan engine at Virginia ... -
A Test Facility for the Experimental Investigation of Labyrinth Seal Flutter and Early-Stage Validation of Prediction Techniques
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The ARIAS project involved the development of novel seal flutter prediction approaches and their full validation against data generated with a state-of-the-art test facility to improve understanding of this ... -
Nonintrusive Ground Force Decomposition Applied to Turbofans—Part I: Control Volume Development and Uncertainty
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. A control volume framework is derived to decompose forces produced by a turbofan with special considerations for application to experimental measurements. The rich history of aerodynamic force decomposition is ...