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Xavier Ottavy
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Journal Articles

Numerical Characterization of an High Pressure Compressor Stage Equipped With a Closed Shrouded Stator Cavity

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Cedric Babin, Michel Dumas, Xavier Ottavy, Fabrizio Fontaneto
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2025, 147(4): 041019.
Paper No: TURBO-20-1256
https://doi.org/10.1115/1.4050333
Published Online: January 30, 2025
View Articletitled, Numerical Characterization of an High Pressure Compressor Stage Equipped With a Closed Shrouded Stator Cavity
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Topics: Cavities, Cavity flows, Flow (Dynamics), Stators, Compressors, Blades
Journal Articles

Experiments on Structurally Mistuned UHBR Open-Test-Case Fan ECL5/CATANA

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Christoph Brandstetter, Alexandra P. Schneider, Anne-Lise Fiquet, Benoit Paoletti, Xavier Ottavy
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2025, 147(8): 081010.
Paper No: GTP-24-1707
https://doi.org/10.1115/1.4067221
Published Online: January 20, 2025
View Articletitled, Experiments on Structurally Mistuned UHBR Open-Test-Case Fan ECL5/CATANA
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Topics: Blades, Vibration, Clearances (Engineering), Rotors, Manufacturing, Flow (Dynamics)
Proceedings Papers

Experiments on Structurally Mistuned UHBR Open-Test-Case Fan ECL5/CATANA

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Christoph Brandstetter, Alexandra P. Schneider, Anne-Lise Fiquet, Benoit Paoletti, Xavier Ottavy
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, V10AT21A020, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129163
https://doi.org/10.1115/GT2024-129163
View Paper titled, Experiments on Structurally Mistuned UHBR Open-Test-Case Fan ECL5/CATANA
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Topics: Acoustics, Aerodynamics, Architecture, Blades, Carbon composites, Clearances (Engineering), Compressors, Convection, Engines, Fans
Journal Articles

UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions

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Anne-Lise Fiquet, Xavier Ottavy, Christoph Brandstetter
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2024, 146(7): 071003.
Paper No: TURBO-23-1197
https://doi.org/10.1115/1.4064841
Published Online: March 18, 2024
View Articletitled, UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
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Topics: Blades, Simulation, Vibration, Pressure, Damping, Fluid structure interaction, Waves, Oscillations
Journal Articles

Experiments on Tuned UHBR Open-Test-Case Fan ECL5/CATANA: Performance and Aerodynamics

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Alexandra P. Schneider, Anne-Lise Fiquet, Benoit Paoletti, Xavier Ottavy, Christoph Brandstetter
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2024, 146(8): 081001.
Paper No: TURBO-23-1216
https://doi.org/10.1115/1.4064231
Published Online: March 11, 2024
View Articletitled, Experiments on Tuned UHBR Open-Test-Case Fan ECL5/CATANA: Performance and Aerodynamics
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Topics: Blades, Design, Pressure, Rotors, Simulation, Reynolds-averaged Navier–Stokes equations, Clearances (Engineering), Aerodynamics, Geometry, Flow (Dynamics)
Journal Articles

Experiments on Tuned UHBR Open-Test-Case Fan ECL5/CATANA: Stability Limit

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Christoph Brandstetter, Anne-Lise Fiquet, Alexandra P. Schneider, Benoit Paoletti, Xavier Ottavy
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2024, 146(5): 051011.
Paper No: GTP-23-1513
https://doi.org/10.1115/1.4063717
Published Online: December 11, 2023
View Articletitled, Experiments on Tuned UHBR Open-Test-Case Fan ECL5/CATANA: Stability Limit
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Topics: Blades, Stability, Vibration, Pressure, Design, Simulation, Finite element methods, Strain gages, Rotors
Proceedings Papers

Experiments on Tuned UHBR Open-Test-Case Fan ECL5/CATANA: Stability Limit

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Anne-Lise Fiquet, Alexandra P. Schneider, Benoit Paoletti, Xavier Ottavy, Christoph Brandstetter
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT21A009, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102537
https://doi.org/10.1115/GT2023-102537
View Paper titled, Experiments on Tuned UHBR Open-Test-Case Fan ECL5/CATANA: Stability Limit
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Topics: Stability, Vibration, Blades, Architecture, Chords (Trusses), Clearances (Engineering), Composite materials, Compressors, Engineering simulation, Fans
Proceedings Papers

Beneficial Effects of Guide Fins on Corner Separation

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Gabriel Mondin, William Riéra, Pierre Duquesne, Xavier Ottavy
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A005, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101012
https://doi.org/10.1115/GT2023-101012
View Paper titled, Beneficial Effects of Guide Fins on Corner Separation
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Topics: Corners (Structural elements), Fins, Optimization, Reynolds-averaged Navier–Stokes equations, Separation (Technology)
Proceedings Papers

A Bayesian Data Driven Multi-Fidelity Modelling Approach for Experimental Under-Sampled Flow Reconstruction

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Gonçalo G. Cruz, Cedric Babin, Xavier Ottavy, Fabrizio Fontaneto
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A043, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103886
https://doi.org/10.1115/GT2023-103886
View Paper titled, A Bayesian Data Driven Multi-Fidelity Modelling Approach for Experimental Under-Sampled Flow Reconstruction
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Topics: Flow (Dynamics), Flow measurement, Modeling, Compressors, Computational fluid dynamics, Computer simulation, Databases, Errors, Instrumentation, Measurement uncertainty
Proceedings Papers

Experiments on Tuned UHBR Open-Test-Case Fan ECL5/CATANA: Performance and Aerodynamics

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Alexandra P. Schneider, Anne-Lise Fiquet, Benoit Paoletti, Xavier Ottavy, Christoph Brandstetter
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A038, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103629
https://doi.org/10.1115/GT2023-103629
View Paper titled, Experiments on Tuned UHBR Open-Test-Case Fan ECL5/CATANA: Performance and Aerodynamics
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Topics: Aerodynamics, Engineering simulation, Simulation, Architecture, Blades, Boundary layers, Carbon fibers, Clearances (Engineering), Corners (Structural elements), Design
Proceedings Papers

A CFD-Based Throughflow Solver Using Cascade Potential Theory for Axial Compressor Flow Modeling

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Florent Kravtsoff, Michaël Schvallinger, Xavier Ottavy
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT32A024, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102875
https://doi.org/10.1115/GT2023-102875
View Paper titled, A CFD-Based Throughflow Solver Using Cascade Potential Theory for Axial Compressor Flow Modeling
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Topics: Boundary layers, Cascades (Fluid dynamics), Compressors, Computational fluid dynamics, Flow (Dynamics), Modeling, Potential theory (Physics), Wakes
Journal Articles

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

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Cedric Babin, Xavier Ottavy, Fabrizio Fontaneto
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2023, 145(5): 051016.
Paper No: TURBO-22-1321
https://doi.org/10.1115/1.4056698
Published Online: March 2, 2023
View Articletitled, Leakage Flow Impact on Shrouded Stator Cavity Flow Topology and Associated High-Speed Axial Compressor Stage Performance
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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

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Cedric Babin, Xavier Ottavy, Fabrizio Fontaneto
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A035, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82868
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
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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

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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-77992
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
Open the PDF for UHBR Open-Test-Case Fan ECL5/CATANA: Numerical Investigation Near the Stability Limit Including Aerodynamic Mistuning in another window
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

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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81961
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
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Topics: Turbulence, Acoustics, Aircraft engines, Composite materials, Design, Ducts, Flight, Honeycomb structures, Inflow, Instrumentation
Journal Articles

The Unsteady Topology of Corner Separations

Open Access
Ivo Dawkins, James Taylor, Xavier Ottavy, Rob Miller
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. November 2022, 144(11): 111001.
Paper No: TURBO-21-1255
https://doi.org/10.1115/1.4054676
Published Online: July 4, 2022
View Articletitled, The Unsteady Topology of Corner Separations
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Topics: Blades, Cascades (Fluid dynamics), Corners (Structural elements), Flow (Dynamics), Separation (Technology), Topology, Design, Boundary layers
Proceedings Papers

Bayesian Inference of Experimental Data for Axial Compressor Performance Assessment

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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59200
https://doi.org/10.1115/GT2021-59200
View Paper titled, Bayesian Inference of Experimental Data for Axial Compressor Performance Assessment
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Topics: Compressors, Algorithms, Flow (Dynamics), Instrumentation, Computer simulation, Errors, Inverse problems, Kalman filters, Pressure, Turbomachinery
Proceedings Papers

The Unsteady Topology of Corner Separations

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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
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58730
https://doi.org/10.1115/GT2021-58730
View Paper titled, The Unsteady Topology of Corner Separations
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Topics: Corners (Structural elements), Topology, Separation (Technology), Flow (Dynamics), Blades, Annulus, Cascades (Fluid dynamics), Compressors, Convection, Design
Journal Articles

Interpretation of Stall Precursor Signatures

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Christoph Brandstetter, Xavier Ottavy, Benoit Paoletti, Sina Stapelfeldt
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. December 2021, 143(12): 121011.
Paper No: TURBO-20-1275
https://doi.org/10.1115/1.4051709
Published Online: July 27, 2021
View Articletitled, Interpretation of Stall Precursor Signatures
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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

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