1-20 of 102
Microphones
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Model-Based Inference of Flame Transfer Matrices From Acoustic Measurements in an Aero-Engine Test Rig

Alexander J. Eder, Moritz Merk, Thomas Hollweck, André Fischer, Claus Lahiri, Camilo F. Silva, Wolfgang Polifke
Proc. ASME. GT2024, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A040, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124263
https://doi.org/10.1115/GT2024-124263
View Paper titled, Model-Based Inference of Flame Transfer Matrices From Acoustic Measurements in an Aero-Engine Test Rig
Open the PDF for Model-Based Inference of Flame Transfer Matrices From Acoustic Measurements in an Aero-Engine Test Rig in another window
Topics: Acoustics, Aircraft engines, Flames, Microphones
Proceedings Papers

Centrifugal Compressor Instrumentation for Developing an Anomaly Detection Method Using Vibration- and Acoustic Measurement Data

Nick Linnemann, Bastian Dolle, Dieter Brillert
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT33A007, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123839
https://doi.org/10.1115/GT2024-123839
View Paper titled, Centrifugal Compressor Instrumentation for Developing an Anomaly Detection Method Using Vibration- and Acoustic Measurement Data
Open the PDF for Centrifugal Compressor Instrumentation for Developing an Anomaly Detection Method Using Vibration- and Acoustic Measurement Data in another window
Topics: Acoustics, Compressors, Instrumentation, Vibration, Machinery, Maintenance, Accelerometers, Evaluation methods, Fingerprints, Microphones
Proceedings Papers

Aerodynamics and Aeroacoustics of Leading Edge Serration in Low-Speed Axial Fans With Forward Skewed Blades

Lorenzo Tieghi, Felix Czwielong, Valerio F. Barnabei, Cristof Ocker, Giovanni Delibra, Stefan Becker, Alessandro Corsini
Proc. ASME. GT2023, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T10A003, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101899
https://doi.org/10.1115/GT2023-101899
View Paper titled, Aerodynamics and Aeroacoustics of Leading Edge Serration in Low-Speed Axial Fans With Forward Skewed Blades
Open the PDF for Aerodynamics and Aeroacoustics of Leading Edge Serration in Low-Speed Axial Fans With Forward Skewed Blades in another window
Topics: Aerodynamic noise, Aerodynamics, Blades, Fans, Flow (Dynamics), Emissions, Noise control, Rotors, Sound, Anechoic chambers
Proceedings Papers

Simulation of the Thermoacoustic Response of an Aero-Engine Gas Turbine Fuel Injector Using a Hybrid CFD-CAA Method

Hanna Reinhardt, Çetin Ozan Alanyalıoğlu, André Fischer, Claus Lahiri, Hendrik Nicolai, Christian Hasse
Proc. ASME. GT2023, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A006, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100865
https://doi.org/10.1115/GT2023-100865
View Paper titled, Simulation of the Thermoacoustic Response of an Aero-Engine Gas Turbine Fuel Injector Using a Hybrid CFD-CAA Method
Open the PDF for Simulation of the Thermoacoustic Response of an Aero-Engine Gas Turbine Fuel Injector Using a Hybrid CFD-CAA Method in another window
Topics: Aircraft engines, Computational fluid dynamics, Fuel injectors, Gas turbines, Simulation, Acoustics, Flames, Combustion systems, Ejectors, Fluid dynamics
Proceedings Papers

Intermittency of Flame Structure and Thermo-Acoustic Behavior in a Staged Multipoint Injector Using Liquid Fuel

Marie Truffot, Antoine Renaud, Laurent Zimmer, Franck Richecoeur, Alain Cayre, Yoann Méry
Proc. ASME. GT2023, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A062, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102446
https://doi.org/10.1115/GT2023-102446
View Paper titled, Intermittency of Flame Structure and Thermo-Acoustic Behavior in a Staged Multipoint Injector Using Liquid Fuel
Open the PDF for Intermittency of Flame Structure and Thermo-Acoustic Behavior in a Staged Multipoint Injector Using Liquid Fuel in another window
Topics: Acoustics, Ejectors, Flames, Fuels, Fluctuations (Physics), Shapes, Atmospheric pressure, Bifurcation, Combustion, Combustion chambers
Proceedings Papers

Acoustic and Optical Flame Transfer Function Measurements in a High-Pressure Lean-Burn Aero-Engine Combustor Fueled With Jet A

Victor Salazar, Krisna Venkatesan, Fei Han, Samuel Wonfor, Mitchell Passarelli, Andy Zheng, Adam Steinberg
Proc. ASME. GT2023, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A032, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103222
https://doi.org/10.1115/GT2023-103222
View Paper titled, Acoustic and Optical Flame Transfer Function Measurements in a High-Pressure Lean-Burn Aero-Engine Combustor Fueled With Jet A
Open the PDF for Acoustic and Optical Flame Transfer Function Measurements in a High-Pressure Lean-Burn Aero-Engine Combustor Fueled With Jet A in another window
Topics: Acoustics, Aircraft engines, Combustion chambers, Flames, High pressure (Physics), Imaging, Microphones, Transfer functions
Proceedings Papers

Acoustic Scattering Behaviour of an Aero Engine Injector: Numerical Investigation Using Compressible CFD and CAA

Çetin Alanyalıoğlu, Hanna Reinhardt, André Fischer, Claus Lahiri, Christian Hasse
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT33A017, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82901
https://doi.org/10.1115/GT2022-82901
View Paper titled, Acoustic Scattering Behaviour of an Aero Engine Injector: Numerical Investigation Using Compressible CFD and CAA
Open the PDF for Acoustic Scattering Behaviour of an Aero Engine Injector: Numerical Investigation Using Compressible CFD and CAA in another window
Topics: Acoustics, Aircraft engines, Computational fluid dynamics, Ejectors, Electromagnetic scattering, Radiation scattering, Scattering (Physics), Combustion chambers, Emissions, Engineering simulation
Proceedings Papers

Acoustic Flame Transfer Function Measurements in a Liquid Fueled High Pressure Aero-Engine Combustor

Krishna Venkatesan, Arin Cross, Fei Han
Proc. ASME. GT2022, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A049, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81769
https://doi.org/10.1115/GT2022-81769
View Paper titled, Acoustic Flame Transfer Function Measurements in a Liquid Fueled High Pressure Aero-Engine Combustor
Open the PDF for Acoustic Flame Transfer Function Measurements in a Liquid Fueled High Pressure Aero-Engine Combustor in another window
Topics: Acoustics, Aircraft engines, Combustion chambers, Flames, High pressure (Physics), Microphones, Transfer functions
Proceedings Papers

Influence of Different Flow Solvers and Off-Design Conditions on the Determination of Fan-Rotor Wakes for Broadband Noise Prediction

Robert Meier zu Ummeln, Antoine Moreau, Markus Schnoes
Proc. ASME. GT2022, Volume 5: Education; Electric Power; Fans and Blowers, V005T10A002, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78406
https://doi.org/10.1115/GT2022-78406
View Paper titled, Influence of Different Flow Solvers and Off-Design Conditions on the Determination of Fan-Rotor Wakes for Broadband Noise Prediction
Open the PDF for Influence of Different Flow Solvers and Off-Design Conditions on the Determination of Fan-Rotor Wakes for Broadband Noise Prediction in another window
Topics: Design, Flow (Dynamics), Noise (Sound), Rotors, Wakes, Turbulence, Acoustics, Aircraft engines, Engines, Flow simulation
Proceedings Papers

The Effects of Forcing Direction on the Flame Transfer Function of a Lean-Burn Spray Flame

Nicholas C. W. Treleaven, André Fischer, Claus Lahiri, Max Staufer, Andrew Garmory, Gary J. Page
Proc. ASME. GT2021, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A010, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59553
https://doi.org/10.1115/GT2021-59553
View Paper titled, The Effects of Forcing Direction on the Flame Transfer Function of a Lean-Burn Spray Flame
Open the PDF for The Effects of Forcing Direction on the Flame Transfer Function of a Lean-Burn Spray Flame in another window
Topics: Flames, Sprays, Transfer functions, Simulation, Engineering simulation, Acoustics, Fluctuations (Physics), Heat, Microphones, Fuel injectors
Proceedings Papers

Ranking of Aircraft Fuel-Injectors Regarding Low Frequency Thermoacoustics Based on an Energy Balance Method

André Fischer, Claus Lahiri
Proc. ASME. GT2021, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A011, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59561
https://doi.org/10.1115/GT2021-59561
View Paper titled, Ranking of Aircraft Fuel-Injectors Regarding Low Frequency Thermoacoustics Based on an Energy Balance Method
Open the PDF for Ranking of Aircraft Fuel-Injectors Regarding Low Frequency Thermoacoustics Based on an Energy Balance Method in another window
Topics: Acoustics, Aircraft, Energy budget (Physics), Flames, Fuel injectors, Thermoacoustics, Transfer functions, Aircraft engines, Combustion chambers, Combustion systems
Proceedings Papers

Towards Reduced Order Models of Small-Scale Acoustically Significant Components in Gas Turbine Combustion Chambers

Suhas A. Kowshik, Sumukha Shridhar, N. C. W. Treleaven
Proc. ASME. GT2021, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A013, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59601
https://doi.org/10.1115/GT2021-59601
View Paper titled, Towards Reduced Order Models of Small-Scale Acoustically Significant Components in Gas Turbine Combustion Chambers
Open the PDF for Towards Reduced Order Models of Small-Scale Acoustically Significant Components in Gas Turbine Combustion Chambers in another window
Topics: Acoustics, Combustion chambers, Gas turbines, Simulation, Computational fluid dynamics, Flow (Dynamics), Artificial neural networks, Damping, Cooling, Design
Proceedings Papers

Signal Processing Techniques to Detect Centrifugal Compressors Instabilities in Large Volume Power Plants

Carlo Alberto Niccolini Marmont Du Haut Champ, Mario Luigi Ferrari, Paolo Silvestri, Aristide Fausto Massardo
Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T06A009, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14795
https://doi.org/10.1115/GT2020-14795
View Paper titled, Signal Processing Techniques to Detect Centrifugal Compressors Instabilities in Large Volume Power Plants
Open the PDF for Signal Processing Techniques to Detect Centrifugal Compressors Instabilities in Large Volume Power Plants in another window
Topics: Compressors, Power stations, Signal processing, Surges, Wavelets, Microturbines, Signals, Accelerometers, Acoustics, Combustion chambers
Proceedings Papers

Performance of a Low Speed Axial Fan Under Distortion: An Experimental Investigation

Sumit Tambe, Ugaitz Bartolomé Oseguera, Arvind Gangoli Rao
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A040, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14956
https://doi.org/10.1115/GT2020-14956
View Paper titled, Performance of a Low Speed Axial Fan Under Distortion: An Experimental Investigation
Open the PDF for Performance of a Low Speed Axial Fan Under Distortion: An Experimental Investigation in another window
Topics: Aircraft, Boundary layers, Design, Engines, Flight, Flow (Dynamics), Fuels, Inflow, Microphones, Noise (Sound)
Proceedings Papers

Aeroacoustical and Aerodynamical Investigations of Riblets Applied on Low Pressure Turbine Exit Guide Vanes for Two Different Operating Points

M. Zenz, A. Hafizovic, L. Simonassi, P. Leitl, F. Heitmeir, A. Marn
Proc. ASME. GT2019, Volume 2B: Turbomachinery, V02BT43A001, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90283
https://doi.org/10.1115/GT2019-90283
View Paper titled, Aeroacoustical and Aerodynamical Investigations of Riblets Applied on Low Pressure Turbine Exit Guide Vanes for Two Different Operating Points
Open the PDF for Aeroacoustical and Aerodynamical Investigations of Riblets Applied on Low Pressure Turbine Exit Guide Vanes for Two Different Operating Points in another window
Topics: Guide vanes, Pressure, Turbines, Suction, Acoustics, Blades, Design, Fuel consumption, Probes, Aircraft
Proceedings Papers

APU-Noise Reduction by Novel Muffler Concepts

Karsten Knobloch, Lars Enghardt, Friedrich Bake
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT43A009, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76762
https://doi.org/10.1115/GT2018-76762
View Paper titled, APU-Noise Reduction by Novel Muffler Concepts
Open the PDF for APU-Noise Reduction by Novel Muffler Concepts in another window
Topics: Noise (Sound), Silencers, Cavities, Design, Flow (Dynamics), Absorption, Acoustics, Damping, Ducts, Microphones
Proceedings Papers

Numerical and Experimental Investigation of Acoustic Characteristics of Model Ultra High Bypass Ratio Counter Rotating Fan

Anton Rossikhin, Iaroslav Druzhinin, Iurii Khaletskii, Victor Mileshin
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT43A011, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76878
https://doi.org/10.1115/GT2018-76878
View Paper titled, Numerical and Experimental Investigation of Acoustic Characteristics of Model Ultra High Bypass Ratio Counter Rotating Fan
Open the PDF for Numerical and Experimental Investigation of Acoustic Characteristics of Model Ultra High Bypass Ratio Counter Rotating Fan in another window
Topics: Acoustics, Rotation, Rotors, Noise (Sound), Aircraft engines, Microphones, Nozzles, Simulation
Proceedings Papers

Continuous-Scan Phased Array Measurement Methods for Turbofan Engine Acoustic Testing

Parthiv N. Shah, Andrew White, Dan Hensley, Dimitri Papamoschou, Håvard Vold
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT43A012, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-77033
https://doi.org/10.1115/GT2018-77033
View Paper titled, Continuous-Scan Phased Array Measurement Methods for Turbofan Engine Acoustic Testing
Open the PDF for Continuous-Scan Phased Array Measurement Methods for Turbofan Engine Acoustic Testing in another window
Topics: Acoustics, Engines, Testing, Turbofans, Sensors, Algorithms, Noise (Sound), Data acquisition systems, Delays, Density
Proceedings Papers

Validation of a Physics-Based Low-Order Thermo-Acoustic Model of Combustion Driven Oscillations in a Liquid Fueled Gas Turbine Combustor

M. Knadler, T. Caley, J. G. Lee, S. Jung, S. Kim, H. Park
Proc. ASME. GT2018, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A041, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75559
https://doi.org/10.1115/GT2018-75559
View Paper titled, Validation of a Physics-Based Low-Order Thermo-Acoustic Model of Combustion Driven Oscillations in a Liquid Fueled Gas Turbine Combustor
Open the PDF for Validation of a Physics-Based Low-Order Thermo-Acoustic Model of Combustion Driven Oscillations in a Liquid Fueled Gas Turbine Combustor in another window
Topics: Acoustics, Combustion, Combustion chambers, Gas turbines, Oscillations, Physics, Flames, Microphones, Transfer functions, Boundary-value problems
Proceedings Papers

Stability and Limit Cycles of a Nonlinear Damper Acting on a Linearly Unstable Thermoacoustic Mode

Claire Bourquard, Nicolas Noiray
Proc. ASME. GT2018, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A036, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76838
https://doi.org/10.1115/GT2018-76838
View Paper titled, Stability and Limit Cycles of a Nonlinear Damper Acting on a Linearly Unstable Thermoacoustic Mode
Open the PDF for Stability and Limit Cycles of a Nonlinear Damper Acting on a Linearly Unstable Thermoacoustic Mode in another window
Topics: Dampers, Limit cycles, Stability, Acoustics, Cavities, Combustion chambers, Engines, Feedback, Computation, Delays