Journal of Turbomachinery: Recent submissions
Now showing items 261-280 of 4519
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Development of an Additively Manufactured Stationary Diffusion System for a Research Aeroengine Centrifugal Compressor
(The American Society of Mechanical Engineers (ASME), 2024)This paper introduces the next generation of the Centrifugal Stage for Aerodynamic Research (CSTAR) facility at the Purdue University Compressor Research Lab. The research centrifugal compressor is designed with an additively ... -
Lessons Learned From Pandemic-Driven Remote Learning and Sustaining Best Practices in Turbomachinery Laboratory Experiences
(The American Society of Mechanical Engineers (ASME), 2024)As online educational experiences have become more common for students to engage with while earning an engineering degree, instructors must become more attuned to best practices in digital pedagogies for all courses, ... -
Influence of Propagation Velocity and Peak Pressure of the Rotating Pressure Wave on the Flow Characteristics of a Centrifugal Compressor
(The American Society of Mechanical Engineers (ASME), 2025)Rotating detonation turbine engine represents an innovative advancement in the state-of-art gas turbines. When a rotating detonation combustor is coupled with turbomachinery, the rotating detonation wave propagates upstream ... -
Influences of Particulate Deposition on Vane Trailing-Edge Film Cooling: Adiabatic and Overall Cooling Effectiveness
(The American Society of Mechanical Engineers (ASME), 2025)Thermal design for the trailing edge of a turbine vane is critically challenging because the thinnest trailing-edge region has a low-thermal capacity, resulting in a much quicker thermal response to the hot gas. Cooling ... -
Experimental Study on Controlling Flow Separation of Compressor Cascades With Self-Excited Sweeping Jet Actuator
(The American Society of Mechanical Engineers (ASME), 2025)The sweeping jet actuator (SJA), widely studied as a potential flow control method in compressors and turbines, results in unnecessary performance losses due to its requirement for additional energy and mass input. In this ... -
Design and Analysis of a Liftfan for eVTOL Aircraft
(The American Society of Mechanical Engineers (ASME), 2025)Ducted liftfans provide greater hovering efficiency to electric vertical take-off and landing aircraft than open propellers of equal disk area. Liftfans are designed with minimized length to limit propulsor weight added ... -
Unsteadiness in the Secondary Flows of a High-Speed Low-Pressure Turbine Cascade With Unsteady Wakes and Purge Flow
(The American Society of Mechanical Engineers (ASME), 2025)This work investigates the unsteady interactions between incoming wakes and purge flow in a high-speed low-pressure turbine cascade tested under engine-representative conditions. Experiments were conducted in a linear ... -
The Matching Mechanism and Flow Mechanisms of Supersonic Through-Flow Variable-Pitch Tandem Cascade
(The American Society of Mechanical Engineers (ASME), 2024)The geometric structure of the supersonic through-flow variable-pitch tandem fan poses challenges in ensuring optimal relative blade positions across various operating modes. This study employed numerical simulations to ... -
Resolvent Analysis for Subsonic Compressor With Impedance Boundary Condition Casing Treatment
(The American Society of Mechanical Engineers (ASME), 2024)A resolvent analysis framework for the axial compressor is established, and the impedance optimization is achieved based on the resolvent analysis framework for the impedance boundary condition casing treatment. This ... -
Impact of Lean-Burn Combustor Flow on Nozzle Guide Vane Performance
(The American Society of Mechanical Engineers (ASME), 2024)In this paper we investigate the impact of lean-burn-representative swirl and temperature distortion on the aerothermal performance of fully-cooled high-pressure nozzle guide vanes (NGVs) from a modern aero-engine. Experiments ... -
Three-Dimensional Unsteady Aerodynamic Optimization of a Transonic Compressor Stage Using an Implicit Discrete Adjoint Harmonic Balance Method
(The American Society of Mechanical Engineers (ASME), 2024)The design of high-loading and compact modern turbomachines results in strong unsteady interactions between two adjacent blade rows, which has been found to have a noticeable impact on aerodynamic performances of turbomachines. ... -
Equation-Oriented Meanline Method for Axial Turbine Performance Prediction Under Choking Conditions
(The American Society of Mechanical Engineers (ASME), 2024)Meanline models play a crucial role in turbine design and system-level analyses, facilitating rapid evaluation of design concepts and prediction of off-design performance. Most of the existing meanline methods are inadequate ... -
Guideline for Large-Scale Analysis of Centrifugal Blower Using Wall-Resolved Large Eddy Simulation
(The American Society of Mechanical Engineers (ASME), 2024)To reduce the number of prototypes during product design and accurately predict unsteady phenomena occurring at off-design points, a method for accurately predicting the performance of centrifugal blowers through numerical ... -
Sensitivity Analysis for Flow Stability of Axial Compressor Based on Meridional Flow
(The American Society of Mechanical Engineers (ASME), 2025)A sensitivity analysis method for flow stability of axial compressors based on meridional flow is proposed and employed to reveal the sensitive region of stability in the present article. The meridional stability model ... -
An Aerodynamic Investigation of a High-Pressure Turbine Using Rotor Casing Static Pressure Measurements at Engine Representative Conditions With Different Tip Designs, Tip Gaps, and Inlet Temperature Profiles
(The American Society of Mechanical Engineers (ASME), 2025)A rotating high-pressure (HP) turbine, in modern aircraft engines, is subjected to high cyclic thermal and mechanical loads. Shroudless turbines experience high heat loads on the rotor tip and casing, which makes them one ... -
Numerical and Experimental Investigation of Boundary Layer of a High-Lift Low-Pressure Turbine Cascade Under Periodic Wakes With Different Flow Coefficients
(The American Society of Mechanical Engineers (ASME), 2024)This article investigates the boundary layer on the suction surface of a low-pressure turbine (LPT) subjected to upstream wakes with three different unsteady flow cases, characterized by the variation of flow coefficients. ... -
Multidisciplinary Optimization of a Mixed-Flow Impeller With 140 Parameters and Its Shapley Additive Explanations
(The American Society of Mechanical Engineers (ASME), 2024)In recent years, we have made several improvements to the geometric parameterization method, the surrogate model method, and the sampling method, with the goal of making the traditional surrogate model-based optimization ... -
Enhanced Antideposition Performance of Film Cooling With a Shaped Sweeping Jet Hole
(The American Society of Mechanical Engineers (ASME), 2024)Shaped sweeping jet (SSJ) holes represent an advancement in sweeping jet (SJ) technology, as they offer enhanced cooling performance. To reveal the antideposition capabilities of SSJs, particle deposition results of ... -
Uncertainty Analysis of Laser Drilling Imperfection and Impacts on the Cooling Performance of a Transonic Turbine Vane
(The American Society of Mechanical Engineers (ASME), 2024)To ensure the durability and reliability of gas turbine, film cooling has been integrated into the design of the modern gas turbine vane endwall, especially for the first-stage vane endwall. Percussion laser drilling has ... -
Conjugate Heat Transfer Validation of an Optimized Film Cooling Configuration for a Turbine Vane Endwall
(The American Society of Mechanical Engineers (ASME), 2024)In this study, to improve overall cooling performance for the endwall of a turbine nozzle guide vane that incorporated internal jet impingement and external purge flow and discrete injection cooling, the external film ...