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Journal Articles

Leakage Flow Impact on Shrouded Stator Cavity Flow Topology and Associated High-Speed Axial Compressor Stage Performance

Cedric Babin, Xavier Ottavy, Fabrizio Fontaneto
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. May 2023, 145(5): 051016.
Paper No: TURBO-22-1321
DOI: https://doi.org/10.1115/1.4056698
Published Online: March 2, 2023
View Article titled, Leakage Flow Impact on Shrouded Stator Cavity Flow Topology and Associated High-Speed Axial Compressor Stage Performance
Click here to open pdf in another window PDF for Leakage Flow Impact on Shrouded Stator Cavity Flow Topology and Associated High-Speed Axial Compressor Stage Performance
Topics: Cavities, Compressors, Flow (Dynamics), Leakage, Leakage flows, Stators, Cavity flows, Design, Temperature
Proceedings Papers

Leakage Flow Impact on Shrouded Stator Cavity Flow Topology and Associated High Speed Axial Compressor Stage Performance

Cedric Babin, Xavier Ottavy, Fabrizio Fontaneto
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A035, June 13–17, 2022
Paper No: GT2022-82868
DOI: https://doi.org/10.1115/GT2022-82868
View Paper titled, Leakage Flow Impact on Shrouded Stator Cavity Flow Topology and Associated High Speed Axial Compressor Stage Performance
Click here to open pdf in another window PDF for Leakage Flow Impact on Shrouded Stator Cavity Flow Topology and Associated High Speed Axial Compressor Stage Performance
Topics: Cavity flows, Compressors, Leakage flows, Stators, Topology, Cavities, Design, Boundary layers, Engineering simulation, Fluid dynamics
Proceedings Papers

UHBR Open-Test-Case Fan ECL5/CATANA: Numerical Investigation Near the Stability Limit Including Aerodynamic Mistuning

Anne-Lise Fiquet, Xavier Ottavy, Christoph Brandstetter
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT15A001, June 13–17, 2022
Paper No: GT2022-77992
DOI: https://doi.org/10.1115/GT2022-77992
View Paper titled, UHBR Open-Test-Case Fan ECL5/CATANA: Numerical Investigation Near the Stability Limit Including Aerodynamic Mistuning
Click here to open pdf in another window PDF for UHBR Open-Test-Case Fan ECL5/CATANA: Numerical Investigation Near the Stability Limit Including Aerodynamic Mistuning
Topics: Annulus, Architecture, Blades, Carbon fibers, Composite materials, Compressors, Design, Engineering simulation, Flutter (Aerodynamics), Reynolds-averaged Navier–Stokes equations
Proceedings Papers

Influence of a Turbulence Control Screen on the Aerodynamic and Aeroelastic Behavior of a UHBR Fan

Alexandra P. Schneider, Benoit Paoletti, Xavier Ottavy, Christoph Brandstetter
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT21A011, June 13–17, 2022
Paper No: GT2022-81961
DOI: https://doi.org/10.1115/GT2022-81961
View Paper titled, Influence of a Turbulence Control Screen on the Aerodynamic and Aeroelastic Behavior of a UHBR Fan
Click here to open pdf in another window PDF for Influence of a Turbulence Control Screen on the Aerodynamic and Aeroelastic Behavior of a UHBR Fan
Topics: Turbulence, Acoustics, Aircraft engines, Composite materials, Design, Ducts, Flight, Honeycomb structures, Inflow, Instrumentation
Journal Articles

The Unsteady Topology of Corner Separations

Ivo Dawkins, James Taylor, Xavier Ottavy, Rob Miller
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. November 2022, 144(11): 111001.
Paper No: TURBO-21-1255
DOI: https://doi.org/10.1115/1.4054676
Published Online: July 4, 2022
View Article titled, The Unsteady Topology of Corner Separations
Click here to open pdf in another window PDF for The Unsteady Topology of Corner Separations
Topics: Blades, Cascades (Fluid dynamics), Corners (Structural elements), Flow (Dynamics), Separation (Technology), Topology, Design, Boundary layers
Proceedings Papers

The Unsteady Topology of Corner Separations

Ivo Dawkins, James Taylor, Xavier Ottavy, Rob Miller
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A013, June 7–11, 2021
Paper No: GT2021-58730
DOI: https://doi.org/10.1115/GT2021-58730
View Paper titled, The Unsteady Topology of Corner Separations
Click here to open pdf in another window PDF for The Unsteady Topology of Corner Separations
Topics: Corners (Structural elements), Topology, Separation (Technology), Flow (Dynamics), Blades, Annulus, Cascades (Fluid dynamics), Compressors, Convection, Design
Proceedings Papers

Bayesian Inference of Experimental Data for Axial Compressor Performance Assessment

Gonçalo G. Cruz, Cedric Babin, Xavier Ottavy, Fabrizio Fontaneto
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A029, June 7–11, 2021
Paper No: GT2021-59200
DOI: https://doi.org/10.1115/GT2021-59200
View Paper titled, Bayesian Inference of Experimental Data for Axial Compressor Performance Assessment
Click here to open pdf in another window PDF for Bayesian Inference of Experimental Data for Axial Compressor Performance Assessment
Topics: Compressors, Algorithms, Flow (Dynamics), Instrumentation, Computer simulation, Errors, Inverse problems, Kalman filters, Pressure, Turbomachinery
Journal Articles

Interpretation of Stall Precursor Signatures

Christoph Brandstetter, Xavier Ottavy, Benoit Paoletti, Sina Stapelfeldt
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. December 2021, 143(12): 121011.
Paper No: TURBO-20-1275
DOI: https://doi.org/10.1115/1.4051709
Published Online: July 27, 2021
View Article titled, Interpretation of Stall Precursor Signatures
Click here to open pdf in another window PDF for Interpretation of Stall Precursor Signatures
Topics: Blades, Pressure, Signals, Spectra (Spectroscopy), Vibration, Rotors, Acoustics, Waves, Sensors, Compressors
Journal Articles

Aerodynamic Investigation of a Composite Low-Speed Fan for UHBR Application

Martin Rodrigues, Laurent Soulat, Benoit Paoletti, Xavier Ottavy, Christoph Brandstetter
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2021, 143(10): 101004.
Paper No: TURBO-20-1413
DOI: https://doi.org/10.1115/1.4050671
Published Online: May 12, 2021
View Article titled, Aerodynamic Investigation of a Composite Low-Speed Fan for UHBR Application
Click here to open pdf in another window PDF for Aerodynamic Investigation of a Composite Low-Speed Fan for UHBR Application
Topics: Blades, Composite materials, Design, Flow (Dynamics), Leakage, Pressure, Reynolds-averaged Navier–Stokes equations, Rotors, Simulation, Turbulence
Journal Articles

Numerical Characterisation of a HP Compressor Stage Equipped with a Closed Shrouded Stator Cavity

Accepted Manuscript
Cedric Babin, Michel Dumas, Xavier Ottavy, Fabrizio Fontaneto
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach.
Paper No: TURBO-20-1256
DOI: https://doi.org/10.1115/1.4050333
Published Online: February 26, 2021
View Article titled, Numerical Characterisation of a HP Compressor Stage Equipped with a Closed Shrouded Stator Cavity
Click here to open pdf in another window PDF for Numerical Characterisation of a HP Compressor Stage Equipped with a Closed Shrouded Stator Cavity
Topics: Cavities, Compressors, Stators, Turbochargers
Proceedings Papers

Aerodynamic Investigation of a Composite Low-Speed Fan for UHBR Application

Martin Rodrigues, Laurent Soulat, Benoit Paoletti, Xavier Ottavy, Christoph Brandstetter
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A009, September 21–25, 2020
Paper No: GT2020-14915
DOI: https://doi.org/10.1115/GT2020-14915
View Paper titled, Aerodynamic Investigation of a Composite Low-Speed Fan for UHBR Application
Click here to open pdf in another window PDF for Aerodynamic Investigation of a Composite Low-Speed Fan for UHBR Application
Topics: Composite materials, Fans, Stability, Vibration, Blades, Compressors, Design, Engineering simulation, Flow (Dynamics), Flutter (Aerodynamics)
Proceedings Papers

Numerical Characterization of a HP Compressor Stage Equipped With a Closed Shrouded Stator Cavity

Cedric Babin, Michel Dumas, Xavier Ottavy, Fabrizio Fontaneto
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A036, September 21–25, 2020
Paper No: GT2020-14908
DOI: https://doi.org/10.1115/GT2020-14908
View Paper titled, Numerical Characterization of a HP Compressor Stage Equipped With a Closed Shrouded Stator Cavity
Click here to open pdf in another window PDF for Numerical Characterization of a HP Compressor Stage Equipped With a Closed Shrouded Stator Cavity
Topics: Cavities, Cavity flows, Compressors, Stators
Proceedings Papers

Acoustic and Convective Mechanisms Contributing to Non-Synchronous-Vibrations in a Multistage Compressor

Christoph Brandstetter, Benoit Paoletti, Xavier Ottavy
Proc. ASME. GT2019, Volume 7A: Structures and Dynamics, V07AT36A019, June 17–21, 2019
Paper No: GT2019-91514
DOI: https://doi.org/10.1115/GT2019-91514
View Paper titled, Acoustic and Convective Mechanisms Contributing to Non-Synchronous-Vibrations in a Multistage Compressor
Click here to open pdf in another window PDF for Acoustic and Convective Mechanisms Contributing to Non-Synchronous-Vibrations in a Multistage Compressor
Topics: Acoustics, Compressors, Vibration, Machinery, Clearances (Engineering), Flow (Dynamics), Locks (Waterways), Blades, Design, Engines
Journal Articles

Project PHARE-2—A High-Speed UHBR Fan Test Facility for a New Open-Test Case

Christoph Brandstetter, Valdo Pages, Pierre Duquesne, Benoit Paoletti, Stéphane Aubert, Xavier Ottavy
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2019, 141(10): 101004.
Paper No: TURBO-18-1311
DOI: https://doi.org/10.1115/1.4043883
Published Online: September 23, 2019
View Article titled, Project PHARE-2—A High-Speed UHBR Fan Test Facility for a New Open-Test Case
Click here to open pdf in another window PDF for Project PHARE-2—A High-Speed UHBR Fan Test Facility for a New Open-Test Case
Topics: Design, Rotors, Test facilities, Blades, Geometry, Acoustics
Journal Articles

Compressible Modal Instability Onset in an Aerodynamically Mistuned Transonic Fan

Christoph Brandstetter, Benoit Paoletti, Xavier Ottavy
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. March 2019, 141(3): 031004.
Paper No: TURBO-18-1175
DOI: https://doi.org/10.1115/1.4042310
Published Online: January 16, 2019
View Article titled, Compressible Modal Instability Onset in an Aerodynamically Mistuned Transonic Fan
Click here to open pdf in another window PDF for Compressible Modal Instability Onset in an Aerodynamically Mistuned Transonic Fan
Topics: Acoustics, Blades, Oscillations, Pressure, Rotors, Exhaust systems, Signals, Flow (Dynamics)
Proceedings Papers

A Study of Loss Mechanism in a Linear Compressor Cascade at the Corner Stall Condition

Zhiyuan Li, Juan Du, Aleksandar Jemcov, Xavier Ottavy, Feng Lin
Proc. ASME. GT2017, Volume 2A: Turbomachinery, V02AT39A044, June 26–30, 2017
Paper No: GT2017-65192
DOI: https://doi.org/10.1115/GT2017-65192
View Paper titled, A Study of Loss Mechanism in a Linear Compressor Cascade at the Corner Stall Condition
Click here to open pdf in another window PDF for A Study of Loss Mechanism in a Linear Compressor Cascade at the Corner Stall Condition
Topics: Cascades (Fluid dynamics), Compressors, Corners (Structural elements), Flow (Dynamics), Wakes, Separation (Technology), Boundary layers, Accounting, Blades, Delay differential equations
Journal Articles

Corner Separation Dynamics in a Linear Compressor Cascade

Gherardo Zambonini, Xavier Ottavy, Jochen Kriegseis
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. June 2017, 139(6): 061101.
Paper No: FE-16-1409
DOI: https://doi.org/10.1115/1.4035876
Published Online: March 22, 2017
View Article titled, Corner Separation Dynamics in a Linear Compressor Cascade
Click here to open pdf in another window PDF for Corner Separation Dynamics in a Linear Compressor Cascade
Topics: Blades, Corners (Structural elements), Flow (Dynamics), Separation (Technology), Errors, Pressure, Cascades (Fluid dynamics), Compressors, Boundary layers
Proceedings Papers

Influence of Rotor Tip Flow Field Mis-Prediction on Rotating Disturbance Near Surge in a High Speed Multistage Compressor

Johannes Schreiber, Xavier Ottavy, Ghislaine Ngo Boum, Nicolas Gourdain
Proc. ASME. GT2016, Volume 2A: Turbomachinery, V02AT37A037, June 13–17, 2016
Paper No: GT2016-57372
DOI: https://doi.org/10.1115/GT2016-57372
View Paper titled, Influence of Rotor Tip Flow Field Mis-Prediction on Rotating Disturbance Near Surge in a High Speed Multistage Compressor
Click here to open pdf in another window PDF for Influence of Rotor Tip Flow Field Mis-Prediction on Rotating Disturbance Near Surge in a High Speed Multistage Compressor
Topics: Compressors, Flow (Dynamics), Rotors, Surges, Aircraft engines, Blades, Filtration, Fluid mechanics, High pressure (Physics), Leakage
Proceedings Papers

Numerical Investigation of Intermittent Corner Separation in a Linear Compressor Cascade

Wei Ma, Feng Gao, Xavier Ottavy, Lipeng Lu, A. J. Wang
Proc. ASME. GT2016, Volume 2A: Turbomachinery, V02AT37A035, June 13–17, 2016
Paper No: GT2016-57311
DOI: https://doi.org/10.1115/GT2016-57311
View Paper titled, Numerical Investigation of Intermittent Corner Separation in a Linear Compressor Cascade
Click here to open pdf in another window PDF for Numerical Investigation of Intermittent Corner Separation in a Linear Compressor Cascade
Topics: Cascades (Fluid dynamics), Compressors, Corners (Structural elements), Separation (Technology), Flow (Dynamics), Blades, Eddies (Fluid dynamics), Fluids, Simulation, Suction
Proceedings Papers

Corner Separation Dynamics in a Linear Compressor Cascade

Gherardo Zambonini, Xavier Ottavy, Jochen Kriegseis
Proc. ASME. GT2016, Volume 2D: Turbomachinery, V02DT44A010, June 13–17, 2016
Paper No: GT2016-56454
DOI: https://doi.org/10.1115/GT2016-56454
View Paper titled, Corner Separation Dynamics in a Linear Compressor Cascade
Click here to open pdf in another window PDF for Corner Separation Dynamics in a Linear Compressor Cascade
Topics: Cascades (Fluid dynamics), Compressors, Corners (Structural elements), Dynamics (Mechanics), Separation (Technology), Blades, Flow (Dynamics), Switches, Boundary layers, Eddies (Fluid dynamics)