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Sergio Lavagnoli
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Journal Articles

Large Eddy Simulations of a High-Speed Low-Pressure Turbine Cascade at Subsonic and Transonic Mach Numbers

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Patrick Tene Hedje, Laurent Bricteux, Yacine Bechane, Sergio Lavagnoli
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2025, 147(10): 101010.
Paper No: TURBO-25-1008
https://doi.org/10.1115/1.4068124
Published Online: April 8, 2025
View Articletitled, Large Eddy Simulations of a High-Speed Low-Pressure Turbine Cascade at Subsonic and Transonic Mach Numbers
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Topics: Blades, Boundary layers, Flow (Dynamics), Mach number, Pressure, Suction, Wakes, Cascades (Fluid dynamics), Shock (Mechanics), Large eddy simulation
Journal Articles

Unsteadiness in the Secondary Flows of a High-Speed Low-Pressure Turbine Cascade With Unsteady Wakes and Purge Flow

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Gustavo Lopes, Sergio Lavagnoli
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2025, 147(9): 091017.
Paper No: TURBO-24-1152
https://doi.org/10.1115/1.4067674
Published Online: February 17, 2025
View Articletitled, Unsteadiness in the Secondary Flows of a High-Speed Low-Pressure Turbine Cascade With Unsteady Wakes and Purge Flow
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Topics: Cascades (Fluid dynamics), Flow (Dynamics), Pressure, Wakes, Turbulence, Fluctuations (Physics), Cavities
Journal Articles

An Active Turbulence Grid for Turbomachinery Flow Experiments

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Federico Bertelli, Mizuki Okada, Sergio Lavagnoli, Koen Hillewaert
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2025, 147(8): 081011.
Paper No: TURBO-24-1325
https://doi.org/10.1115/1.4067441
Published Online: January 13, 2025
View Articletitled, An Active Turbulence Grid for Turbomachinery Flow Experiments
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Topics: Flow (Dynamics), Turbulence, Turbomachinery
Journal Articles

On the Application of Background Oriented Schlieren to a Transonic Low-Reynolds Turbine Cascade

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Alexandre Halby, Bora O. Cakir, Lorenzo Da Valle, Gustavo Lopes, Mizuki Okada, Sergio Lavagnoli
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2025, 147(5): 051016.
Paper No: TURBO-24-1206
https://doi.org/10.1115/1.4067292
Published Online: December 20, 2024
View Articletitled, On the Application of Background Oriented Schlieren to a Transonic Low-Reynolds Turbine Cascade
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Topics: Algorithms, Blades, Cascades (Fluid dynamics), Density, Displacement, Flow (Dynamics), Shock (Mechanics), Shock waves, Turbines, Pressure
Proceedings Papers

On the Application of Background Oriented Schlieren to a Transonic Low-Reynolds Turbine Cascade

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Alexandre Halby, Bora Orcun Cakir, Lorenzo Da Valle, Gustavo Lopes, Mizuki Okada, Sergio Lavagnoli
Proc. ASME. GT2024, Volume 4: Controls, Diagnostics, and Instrumentation, V004T05A038, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127971
https://doi.org/10.1115/GT2024-127971
View Paper titled, On the Application of Background Oriented Schlieren to a Transonic Low-Reynolds Turbine Cascade
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Topics: Cascades (Fluid dynamics), Density, Flow (Dynamics), Pressure, Turbines
Proceedings Papers

An Active Turbulence Grid for Turbomachinery Flow Experiments

Available to Purchase

Federico Bertelli, Mizuki Okada, Sergio Lavagnoli, Koen Hillewaert
Proc. ASME. GT2024, Volume 4: Controls, Diagnostics, and Instrumentation, V004T05A040, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128565
https://doi.org/10.1115/GT2024-128565
View Paper titled, An Active Turbulence Grid for Turbomachinery Flow Experiments
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Topics: Flow (Dynamics), Particle image velocimetry, Turbomachinery, Turbulence, Wire
Proceedings Papers

A Collaborative Framework for Design and Validation of Next-Generation Transonic Low-Pressure Turbines

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Bogdan Cernat, Alexandre Halby, Sergio Lavagnoli, Filippo Rubechini, Stefano Guidolotti, Ardeshir Hanifi, Mihai Mihaescu, Davide Lengani, Francesco Bertini
Proc. ASME. GT2024, Volume 12B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V12BT30A014, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123820
https://doi.org/10.1115/GT2024-123820
View Paper titled, A Collaborative Framework for Design and Validation of Next-Generation Transonic Low-Pressure Turbines
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Topics: Design, Pressure, Turbines
Proceedings Papers

Large Eddy Simulations of a High-Speed Low-Pressure Turbine Cascade at Subsonic and Transonic Mach Numbers

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Patrick Tene Hedje, Laurent Bricteux, Yacine Bechane, Sergio Lavagnoli
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A032, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127182
https://doi.org/10.1115/GT2024-127182
View Paper titled, Large Eddy Simulations of a High-Speed Low-Pressure Turbine Cascade at Subsonic and Transonic Mach Numbers
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Topics: Cascades (Fluid dynamics), Compressibility, Large eddy simulation, Mach number, Pressure, Turbines
Journal Articles

Experimental Investigation of Tip Design Effects on the Unsteady Aerodynamics and Heat Transfer of a High-Speed Turbine

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Bogdan C. Cernat, Sergio Lavagnoli
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2024, 146(9): 091008.
Paper No: TURBO-20-1377
https://doi.org/10.1115/1.4050443
Published Online: April 8, 2024
View Articletitled, Experimental Investigation of Tip Design Effects on the Unsteady Aerodynamics and Heat Transfer of a High-Speed Turbine
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Topics: Blades, Flow (Dynamics), Heat transfer, Pressure, Rotors, Turbines, Heat flux, Design, Vortices
Journal Articles

Measurements of Turbulence in Compressible Low-Density Flows at the Inlet of a Transonic Linear Cascade With and Without Unsteady Wakes

Open Access
Giacomo Pastorino, Loris Simonassi, Gustavo Lopes, Elissavet Boufidi, Fabrizio Fontaneto, Sergio Lavagnoli
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2024, 146(7): 071002.
Paper No: TURBO-23-1305
https://doi.org/10.1115/1.4064369
Published Online: February 26, 2024
View Articletitled, Measurements of Turbulence in Compressible Low-Density Flows at the Inlet of a Transonic Linear Cascade With and Without Unsteady Wakes
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Topics: Calibration, Density, Flow (Dynamics), Fluctuations (Physics), Probes, Turbulence, Wire, Wakes, Cascades (Fluid dynamics), Pressure
Journal Articles

Adaptation of von Karman Institute for Fluid Dynamics’ Isentropic Compression Tube Facility for High-Speed Low-Pressure Turbines Testing

Open Access
Antonino Federico Maria Torre, Filippo Merli, Lorenzo Da Valle, Marios Patinios, Sergio Lavagnoli, Pintat Ludovic
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2024, 146(4): 041008.
Paper No: TURBO-23-1167
https://doi.org/10.1115/1.4064067
Published Online: December 18, 2023
View Articletitled, Adaptation of von Karman Institute for Fluid Dynamics’ Isentropic Compression Tube Facility for High-Speed Low-Pressure Turbines Testing
Open the PDF for Adaptation of von Karman Institute for Fluid Dynamics’ Isentropic Compression Tube Facility for High-Speed Low-Pressure Turbines Testing in another window
Topics: Cavities, Design, Flow (Dynamics), Instrumentation, Pressure, Probes, Turbines, Testing, Rotors, Blades
Journal Articles

Particle Image Velocimetry Measurements in a High-Speed Low-Reynolds Low-Pressure Turbine Cascade

Open Access
Mizuki Okada, Loris Simonassi, Gustavo Lopes, Sergio Lavagnoli
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2024, 146(3): 031010.
Paper No: TURBO-23-1178
https://doi.org/10.1115/1.4063674
Published Online: December 14, 2023
View Articletitled, Particle Image Velocimetry Measurements in a High-Speed Low-Reynolds Low-Pressure Turbine Cascade
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Topics: Blades, Cascades (Fluid dynamics), Flow (Dynamics), Mach number, Particulate matter, Pressure, Turbulence, Reynolds-averaged Navier–Stokes equations, Turbines, Wakes
Proceedings Papers

Adaptation of VKI’s Isentropic Compression Tube Facility for High-Speed Low-Pressure Turbines Testing

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Antonino Federico Maria Torre, Filippo Merli, Lorenzo Da Valle, Marios Patinios, Sergio Lavagnoli, Ludovic Pintat
Proc. ASME. GT2023, Volume 4: Controls, Diagnostics, and Instrumentation, V004T05A024, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103436
https://doi.org/10.1115/GT2023-103436
View Paper titled, Adaptation of VKI’s Isentropic Compression Tube Facility for High-Speed Low-Pressure Turbines Testing
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Topics: Compression, Pressure, Testing, Turbines
Proceedings Papers

Measurements of Turbulence in Compressible Low-Density Flows at the Inlet of a Transonic Linear Cascade With and Without Unsteady Wakes

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Giacomo Pastorino, Loris Simonassi, Gustavo Lopes, Elissavet Boufidi, Fabrizio Fontaneto, Sergio Lavagnoli
Proc. ASME. GT2023, Volume 4: Controls, Diagnostics, and Instrumentation, V004T05A027, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103712
https://doi.org/10.1115/GT2023-103712
View Paper titled, Measurements of Turbulence in Compressible Low-Density Flows at the Inlet of a Transonic Linear Cascade With and Without Unsteady Wakes
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Topics: Cascades (Fluid dynamics), Density, Flow (Dynamics), Pressure, Turbines, Turbulence, Wakes, Wire
Proceedings Papers

Time-Averaged Aerodynamics of a High-Speed Low-Pressure Turbine Cascade With Cavity Purge Flow and Unsteady Wakes

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Gustavo Lopes, Loris Simonassi, Sergio Lavagnoli
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A022, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102828
https://doi.org/10.1115/GT2023-102828
View Paper titled, Time-Averaged Aerodynamics of a High-Speed Low-Pressure Turbine Cascade With Cavity Purge Flow and Unsteady Wakes
Open the PDF for Time-Averaged Aerodynamics of a High-Speed Low-Pressure Turbine Cascade With Cavity Purge Flow and Unsteady Wakes in another window
Topics: Aerodynamics, Cascades (Fluid dynamics), Cavities, Flow (Dynamics), Pressure, Turbines, Wakes
Proceedings Papers

Wall Resolved Large-Eddy Simulations of High-Speed Low-Pressure Turbine Cascades

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Patrick Tene Hedje, Yacine Bechane, Sergio Lavagnoli, Laurent Bricteux
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A005, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101251
https://doi.org/10.1115/GT2023-101251
View Paper titled, Wall Resolved Large-Eddy Simulations of High-Speed Low-Pressure Turbine Cascades
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Topics: Finite volume methods, Large eddy simulation, Pressure, Transonic flow, Turbines
Proceedings Papers

PIV Measurements in a High-Speed Low-Reynolds Low-Pressure Turbine Cascade

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Mizuki Okada, Loris Simonassi, Gustavo Lopes, Sergio Lavagnoli
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A013, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102156
https://doi.org/10.1115/GT2023-102156
View Paper titled, PIV Measurements in a High-Speed Low-Reynolds Low-Pressure Turbine Cascade
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Topics: Cascades (Fluid dynamics), Flow (Dynamics), Pressure, Turbines
Journal Articles

Experimental Investigation of a High-Speed Turbine With Rainbow Rotor and Rim Seal Purge Flow

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Bogdan C. Cernat, Jorge Pinho, Mizuki Okada, Sergio Lavagnoli
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2023, 145(7): 071014.
Paper No: TURBO-22-1331
https://doi.org/10.1115/1.4056776
Published Online: March 2, 2023
View Articletitled, Experimental Investigation of a High-Speed Turbine With Rainbow Rotor and Rim Seal Purge Flow
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Topics: Flow (Dynamics), Pressure, Rotors, Turbines, Reynolds-averaged Navier–Stokes equations, Heat transfer, Design, Cavities, Heat flux
Journal Articles

Vane–Probe Interactions in Transonic Flows

Open Access
Antonino Federico Maria Torre, Marios Patinios, Gustavo Lopes, Loris Simonassi, Sergio Lavagnoli
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. June 2023, 145(6): 061010.
Paper No: TURBO-22-1179
https://doi.org/10.1115/1.4056578
Published Online: January 9, 2023
View Articletitled, Vane–Probe Interactions in Transonic Flows
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Topics: Flow (Dynamics), Probes, Pressure, Mach number, Calibration
Proceedings Papers

An Experimental Test Case for Transonic Low-Pressure Turbines – Part I: Rig Design, Instrumentation and Experimental Methodology

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Loris Simonassi, Gustavo Lopes, Samuel Gendebien, Antonino Federico Maria Torre, Marios Patinios, Sergio Lavagnoli, Nicolas Zeller, Ludovic Pintat
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A012, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81566
https://doi.org/10.1115/GT2022-81566
View Paper titled, An Experimental Test Case for Transonic Low-Pressure Turbines – Part I: Rig Design, Instrumentation and Experimental Methodology
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Topics: Cascades (Fluid dynamics), Design, Instrumentation, Pressure, Turbines, Flow (Dynamics), Blades, Aerodynamics, Engines, Mach number