Journal of Turbomachinery: Recent submissions
Now showing items 201-220 of 4519
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Revisiting Dimensionless Parameters Quantifying Film Cooling
(The American Society of Mechanical Engineers (ASME), 2025)The adiabatic effectiveness of film cooling (η) has been characterized by the density (DRh) and blowing (BRh) ratios. In this study, dimensional analysis and computations based on Reynolds-averaged Navier–Stokes (RANS) ... -
A Review of Secondary Combustion on the Turbine Blade Cooling
(The American Society of Mechanical Engineers (ASME), 2025)The gas turbine engine is the powerhouse of most large modern military and civil aircraft. These engines operate at temperatures above the melting point of the materials that the combustor and turbine components are made ... -
Data Assimilation of Transitional and Separated Turbomachinery Flows With Physics-Informed Neural Networks
(The American Society of Mechanical Engineers (ASME), 2025)Despite the demonstrated utility of Reynolds-averaged Navier–Stokes (RANS) calculations for many industrially relevant problems, the method yields unsatisfactory representations of many flows of engineering interest, such ... -
Compressor Blade Shaping and Optimization Through Design Features Based on Free-Form Deformation
(The American Society of Mechanical Engineers (ASME), 2025)- -
Windage Torque and Flow Characteristics of a Co-Rotating Conical Cavity Under Radial Inflow
(The American Society of Mechanical Engineers (ASME), 2025)The compressor disk cavity is a critical component of the secondary air system, and its design significantly influences the overall performance of an aero-engine. A static testing technique for dynamic torque measurement ... -
Experimental Study on the High Relative Casing Motion Effect on Turbine Blade Tip Aerodynamic Characteristics
(The American Society of Mechanical Engineers (ASME), 2025)The high-speed relative motion between the casing and turbine blade tip significantly complicates the flow field distribution near the blade tip and greatly increases the difficulty of flow field measurement. In this paper, ... -
Numerical Simulations of Ice Particle Transport at Representative Turbofan Compressor Conditions
(The American Society of Mechanical Engineers (ASME), 2025)Engine icing threatens compressor operation and service life. Ice crystal ingestion at cruise and descent flight phases results in smaller, partially melted crystals entering the engine core. Here, crystals stick to ... -
Effect of Blade Damage on Low Pressure Ratio Fan Windmill Aerodynamics
(The American Society of Mechanical Engineers (ASME), 2025)Fan windmill occurs when power to a turbofan is cut during flight and the airflow through the engine causes the fan to freewheel, often following fan damage. The fan rotational speed and drag during windmill determine the ... -
Heat Transfer and Flow Field Characteristics of Variable Aspect Ratio, Serpentine Passages
(The American Society of Mechanical Engineers (ASME), 2025)This study investigates the effect of acceleration and deceleration in the turn region of a two-pass, serpentine channel. Channel aspect ratios of 2:1 and 4:1 are considered in three combinations to investigate the effect ... -
A New Nonlinear Time-Domain Flutter Analysis Approach for Distorted Flows
(The American Society of Mechanical Engineers (ASME), 2024)This paper aims to establish an efficient and accurate computational fluid dynamic (CFD) method for calculating the flutter stability of fan blades in the presence of inlet distortion due to crosswind. Due to the asymmetry ... -
Integration of Cooling Holes Into a Turbine Vane Made Using Additive Manufacturing
(The American Society of Mechanical Engineers (ASME), 2024)Additive manufacturing (AM) has emerged as a method to prototype novel designs for turbine airfoil cooling with complex internal and film cooling geometries. Creating engine scale features with AM comes with challenges ... -
A Data-Driven Method for the Derivation of Explicit Algebraic Reynolds Stress Models Applied to the Wake Losses of Low-Pressure Turbine Cascades
(The American Society of Mechanical Engineers (ASME), 2024)This paper introduces and validates a data-driven approach to improve the prediction of linear eddy viscosity models (LEVMs). The general approach is adopted in order to improve the wake mixing of low-pressure turbine (LPT) ... -
Loss Breakdown in Axial Turbines: A New Method for Vortex Loss and Wake Detection From 3D RANS Simulations
(The American Society of Mechanical Engineers (ASME), 2024)To enhance turbine efficiency, it is essential to mitigate the loss generated by irreversible phenomena taking place in turbine flows, including boundary layers, shock waves, vortices, and trailing edge wakes. A fast and ... -
On the Application of Background Oriented Schlieren to a Transonic Low-Reynolds Turbine Cascade
(The American Society of Mechanical Engineers (ASME), 2024)Qualitative and quantitative visualizations of transonic turbomachinery flows provide essential information on compressibility and Mach number effects on boundary layer development, shock-boundary layer interactions, and ... -
Effects of Radially Variable Sweep Vanes on Rotor–Stator Interaction Noise
(The American Society of Mechanical Engineers (ASME), 2024)This article presents a three-dimensional semianalytic cascade model for the prediction of rotor–stator interaction noise, which includes the effects of radially variable sweep angle and chord length to better account for ... -
A Digital Engineering Analysis of an Additively-Manufactured Turbine Vane
(The American Society of Mechanical Engineers (ASME), 2024)Additive manufacturing (AM) has transformed the ability to accelerate gas turbine component research and development at a fraction of the cost and time associated with conventional manufacturing. However, whereas prior ... -
Fan Non-Synchronous Forced Vibration Under Crosswind
(The American Society of Mechanical Engineers (ASME), 2024)In this paper, a new aeroelastic phenomena for fans, referred to as non-synchronous forced vibration (NSFV), is presented. This type of aeroelastic instability can occur at high crosswind conditions when the flow at the ... -
Numerical Characterization of an High Pressure Compressor Stage Equipped With a Closed Shrouded Stator Cavity
(The American Society of Mechanical Engineers (ASME), 2025)In axial compressors, shrouded stator cavity flows are responsible for performance degradation due to their interaction with the power stream. The present paper aims at exploring the possibility of employing a single-stage ... -
Unsteady Loss Mechanisms in Low-Pressure Turbines With Diverging End-Walls Studied Via High-Fidelity Simulation
(The American Society of Mechanical Engineers (ASME), 2024)High-fidelity simulations are used to conduct controlled numerical experiments to investigate the effect of periodically incoming wakes on profile and three-dimensional loss mechanisms. The present work considers the ... -
Analysis of High-Order Source Terms in Throughflow Solutions
(The American Society of Mechanical Engineers (ASME), 2024)Classical throughflow methodologies, due to their oversimplified assumptions regarding dimensionality reduction, result in a significant reliance on empirical inputs. This paper introduces a rigorous dimensionality reduction ...