Journal of Turbomachinery: Recent submissions
Now showing items 81-100 of 4519
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Experimental and Numerical Investigation of Deep Surge in a Centrifugal Compressor With Vaned Diffuser and Piping System
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Deep surge is a violent flow instability that affects the flow field throughout the entire compression system, potentially leading to performance deterioration and mechanical failures in compressors. A deeper ... -
The Impact of Transition and Turbulence Modeling on the SPLEEN High-Speed Low-Pressure Turbine Cascade
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. In high-speed low-pressure turbines (LPTs) for geared turbofan engine applications, transonic flow conditions combined with low Reynolds number operation depict a flow scenario where shock waves can interact with ... -
Integrating Turbine Blade Cooling With Exhaust Gas Recirculation for Enhanced Carbon Capture in Combined Cycle Gas Turbine
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. In this article, we present the investigation toward the feasibility of turbine blade cooling using exhaust gas from the exhaust gas recirculation (EGR) in combined cycle gas turbine (CCGT) power plants for ... -
Mathematical Modeling for Normalizing Pressure Probe Measurements Using Symbolic Regression
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This study explores the use of advanced techniques to enhance the calibration process of multi-hole pressure probes in low subsonic flow regime. Specifically, machine learning methods, including Ridge and Lasso ... -
An Improved Correlation for Turbine Endwall Loss
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. To develop high-performance turbomachinery, we need accurate preliminary design correlations to guide us toward optimal system and component configurations. Endwall (or secondary) loss has a significant impact ... -
Improving Compressor Preliminary Design With Physically Decomposed Loss Models
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Machine learning on large datasets allows physical structures that are present in data to be discovered. This provides an opportunity to develop a new generation of compressor preliminary design tools, which have ... -
An Experimental Investigation of Sweeping Mist Jet Film Cooling With Droplet Analysis
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Sweeping jets, generated by fluidic oscillators without moving parts, offer strong potential for gas turbine film cooling by providing wider coverage and more uniform lateral cooling. Furthermore, mist was injected ... -
Reynolds Number Effect on Transitional Delayed Detached-Eddy Simulation
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The accurate prediction of a wide range of operating conditions is desired by numerical methods. In particular, off-design conditions are a major challenge for steady Reynolds-averaged Navier–Stokes (RANS) methods. ... -
Aerothermal Design and Metamodel-Assisted Optimization of High-Speed Drive Turbine
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This work explores the development of a high-speed drive system for scaled-down electrified shockwave turboreactors tailored to the laboratory requirements of a small-scale demonstrator. With shockwave turboreactors ... -
Systematic Numerical Investigation on the Surface Roughness Effects on the Friction and Heat Transfer of Additively Manufactured Components
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The gas turbine community is increasingly exploring additive manufacturing (AM) for cooling applications, aiming to consolidate parts, enable higher system complexity, as well as boost performance without raising ... -
Experimental Investigation of Rim-Seal Instabilities and Annulus-Flow Interactions in Two Transonic Turbine Stages
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Rim cavities in gas turbines are critical to both thermodynamic efficiency and structural integrity throughout the engine’s lifecycle. As efforts to improve performance continue, understanding the unsteady flow ... -
Challenges in Aerodynamic Performance of Micro Gas Turbines and Design Inefficiencies
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Micro gas turbines (MGTs) hold significant potential for applications in distributed power generation, aviation, and military sectors due to their compact size and high power density. However, their performance ... -
Viability of Fiber Optic Temperature Sensors Embedded Within Engine-Scale Turbine Blades
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. Accurate predictions of the external and internal temperature distributions of a gas turbine blade are essential to optimizing cooling systems and ensuring blade integrity. Small temperature variations can ... -
Large Eddy Simulation Analysis of a High-Pressure Turbine Rotating Blade Flow Including Purge and Tip Flows
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. A careful introduction of coolant airflows, which create the film protecting the turbine blade, is critical for a more fuel-efficient and environmentally friendly jet engine. Accurate prediction of streams mixing ... -
Advanced Compressor Stall Warning Using Cross-Correlation and Deep Learning-Based Approaches
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This study presents and evaluates three independent stall warning approaches based on unsteady casing pressure measurements acquired above the rotor blade tips. The methods are applied to two different axial ... -
Implementation of a Central Upwind Scheme in Unsteady Compressible Flow Simulation of a Multistage Axial-Centrifugal Compressor
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This work investigates the merits of converting the Kurganov and Tadmor (KT) central scheme into a central-upwind scheme for simulating the compressible, unsteady flow in a multistage axial-centrifugal compressor. ... -
Tip-Leakage Flow in a Low-Pressure Compressor: Comparison Between Low- and Medium-Fidelity Modelings
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. This article evaluates a low-order three-dimensional hybrid panel method (HPM) for predicting inviscid flow around low-pressure compressor rotors. This approach provides input to specific models for the tip-leakage ... -
Crystal Viscoplastic Modeling of Film Cooling Holes in Single Crystal Nickel-Based Superalloys
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. In the advancement of gas turbine technology, increasing thermal efficiency is a primary objective, and one of the most effective methods to achieve this is through elevating the turbine inlet temperature (TIT). ... -
Fundamental Model for Compressor Cavity Heat Transfer: Theory and Validation
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The buoyancy-driven flow inside compressor cavities is three-dimensional and unsteady and features a large range of time and length scales. The temperature and rotation of the fluid core of the cavity are influenced ... -
Transonic Blade Design: Quo Vadis?
(The American Society of Mechanical Engineers (ASME), 2026)Abstract. The design of efficient transonic fan and compressor airfoils is still a major challenge. Efficiency in this context means the lowest possible losses and a wide, stable operating range. The challenge is mainly ...