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Keywords: compressor
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Proceedings Papers
Analysis of Pre-Stall Pressure Disturbances in an Axial Compressor
Available to Purchase
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A005, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123043
... Abstract Pre-stall rotating pressure disturbances were observed at off-design conditions in an axial compressor. The temporal and spectral characteristics of the rotating disturbances were studied at different mass flow rates along a part-speed, partially-closed inlet guide vane (IGV...
Proceedings Papers
Wake-Separation Bubble Interaction Over an Experimentally Simulated Axial Compressor Blade Under Low Reynolds Number Flow
Available to Purchase
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A025, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129181
... Abstract For the most part, the flow over an axial compressor blade is subjected to adverse pressure gradients. Under low Reynolds number conditions, the flow could separate off the blade surface especially on the suction side, where it first accelerates to a peak velocity and then decelerates...
Proceedings Papers
Numerical and Experimental Investigation of Steady Flow Distortion in Drooped Turbofan Intakes
Available to Purchase
Proc. ASME. GT2024, Volume 1: Aircraft Engine, V001T01A032, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124697
... compressor CFD experiment Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024, London, United Kingdom GT2024-124697 NUMERICAL AND EXPERIMENTAL INVESTIGATION OF STEADY FLOW DISTORTION IN DROOPED TURBOFAN INTAKES Yuhan Zhang Beihang University...
Proceedings Papers
An Aero Engine Disk Sizing and Weight Estimation Approach With Improved Temperature Profiles
Available to Purchase
Proc. ASME. GT2024, Volume 1: Aircraft Engine, V001T01A038, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126351
... and tool commonalities. While the primary focus of the current work is on compressor design, the principles presented are adaptable and expandable to turbine disk applications as well. disks compressor aero engine bore temperature low cycle fatigue Proceedings of ASME Turbo Expo 2024...
Proceedings Papers
Non-Synchronous Vibration: Characterisation of the Aerodynamic Disturbance and its Dependency on Local Tip Clearance
Available to Purchase
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A021, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129186
... Abstract Non-synchronous vibrations (NSV) occurring near the stall boundary pose a major challenge to the design of safe and efficient compressors and fans. NSV occurs when aerodynamic disturbances which develop close to the aerodynamic stability limit couple with blade vibration. Despite its...
Proceedings Papers
Aeroelastic Influence of Blade-Shaft Coupling in a 1 1/2-Stage Axial Compressor
Available to Purchase
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A005, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124275
... in the aerodynamic design could be better exploited. aeroelasticity compressor structural dynamics Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024, London, United Kingdom GT2024-124275 AEROELASTIC INFLUENCE OF BLADE-SHAFT COUPLING IN A 1 1/2...
Proceedings Papers
A Reduced Order Model Based on Aerodynamic Influence Coefficients for Aeroelastic Computations in Transonic Compressors
Available to Purchase
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A006, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125072
... Abstract Reliable and computationally affordable aeroelastic simulations of compressor blades are of capital relevance today, as modern turbomachinery for aircraft propulsion are expected to meet stricter goals on weight saving and fuel efficiency through slender and highly-loaded geometries...
Proceedings Papers
Experimental Investigation on the Dynamic Response of a Turbocharger Centrifugal Compressor in Surge Transitions
Available to Purchase
Proc. ASME. GT2024, Volume 9: Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications; Steam Turbine, V009T18A006, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122102
... Abstract Centrifugal compressors play a critical role in various industrial applications, and understanding their operational behavior, especially during surge conditions, is essential for enhancing efficiency and reliability. Surge is a phenomenon that leads to significant pressure and mass...
Proceedings Papers
A Study on Average Eigenvalue Sensitivity for the Improvement of Rotordynamic Stability of Integrally Geared Centrifugal Compressors
Available to Purchase
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT26A017, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128308
... Abstract This paper presents a study on the average eigenvalue sensitivity to design variables of an integrally geared centrifugal compressor pinion-bearing system and its application to the improvement of the rotordynamic stability. The average eigenvalue sensitivity is the approximation...
Proceedings Papers
Effect of Water Injection on Turbofan Engine Compressor Operation and Aerodynamics
Available to Purchase
Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A023, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125908
... Abstract Water injection (WI) can potentially remedy aircraft-related nitrogen oxide (NO x ) pollution around airports and substantially extend the hot section’s life. No high-fidelity study exists examining the effects of deploying compressor water injection (CWI) on turbofans — an engine type...
Proceedings Papers
Experimental Investigation and System Simulation Analysis for the Aerodynamic Performance of a Two-Stage Axial Compressor With Inlet Dynamic Distortion
Available to Purchase
Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A029, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126463
... Abstract The performance and reliability of a compressor can be adversely affected by its inlet conditions. In this paper, the effect of planar wave on a two-stage axial compressor is investigated experimentally with aperiodic inlet dynamic distortions generated by the insertion and extraction...
Proceedings Papers
Optimization Design of Variable Fillet for Different Boundary Thicknesses in a Highly Loaded Compressor Cascade
Available to Purchase
Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A028, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126420
... Abstract This paper addresses the aerodynamic challenges associated with the introduction of a hybrid engine, aiming to enhance efficiency and reduce fuel consumption. Focusing on a smaller, higher-loading compressor rear stage, the study explores three critical questions related to pressure...
Proceedings Papers
Flow Variations in Transonic Compressors Tip Flow — An Experimental Perspective Utilizing High Speed PIV
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Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A027, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126281
... Abstract In modern compressor, the demand for highly loaded stages, coupled with lightweight design, necessitates a growing need for high manufacturing accuracy. However, it is challenging to eliminate the underlying sources of uncertainty. Investigating potential factors influencing compressor...
Proceedings Papers
Efficiency Gains in a Water-Enhanced Turbofan Compressor – A CFD Study
Available to Purchase
Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A051, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129300
... Abstract In pursuing energy-efficient, low-emission propulsion concepts, civil aviation takes a renewed interest in compressor water injection (CWI). The unprecedented heat capacity of water can be utilised for effective compressor cooling through evaporation, thus substantially reducing...
Proceedings Papers
Exergy-Based Analysis of the NASA SDT Configuration
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Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A022, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125784
... and thermocompressible exergy outflow components, but has non-negligible effects on the anergy generation characterizing irreversible losses. fan OGV compressor exergy balance high-order scheme performance losses NASA SDT FFX Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference...
Proceedings Papers
Numerical Simulations of Ice Particle Transport at Representative Turbofan Compressor Conditions
Available to Purchase
Proc. ASME. GT2024, Volume 12B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V12BT31A001, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-121461
...Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024, London, United Kingdom GT2024-121461 NUMERICAL SIMULATIONS OF ICE PARTICLE TRANSPORT AT REPRESENTATIVE TURBOFAN COMPRESSOR CONDITIONS Liam Parker Oxford University, Oxford, OX1 2JD...
Proceedings Papers
Extension of the MULTALL Open Source Throughflow Code for the Improved Off – Design Calculations
Available to Purchase
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A029, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126534
... distributions, the constant C f must be adjusted according to the changing conditions. Considering a classical compressor or turbine performance curve, the angles of incidence change as the mass flow changes, and the losses increase according to the design condition. In addition, the shock losses also increase...
Proceedings Papers
A Study of Loss Model Parameter Sensitivity in Compressor Unsteady Flow Simulations
Available to Purchase
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT35A022, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128143
... Abstract This paper presents results from a comprehensive sensitivity analysis focused on loss models used in a recently developed compressor unsteady mean line flow model for a transonic axial-centrifugal compressor. The mean line flow model treats flow through rotors and stators...
Proceedings Papers
Unsteady Computational Fluid Dynamics Simulation of Inlet Fins in Centrifugal Compressor
Available to Purchase
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT35A007, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124009
... Abstract In this paper, it will be shown that small inlet fins mounted in the compressor inlet pipe can improve the compressor stability limit by alleviating the impeller inlet recirculation flow. Performance tests on the hot gas test bench and unsteady Computational Fluid Dynamics (CFD...
Proceedings Papers
Unsteady Flow Mechanism of Corner Separation Control Using Blade End Slots in a Highly Loaded Compressor Cascade
Available to Purchase
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A029, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129534
... Abstract Blade end slots has been proved to be an effective method to suppress the corner separation, thereby improving the aerodynamic performance of compressor. The unsteady effects of blade end slots affiliated with a highly-loaded compressor cascade on corner separation control...
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