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Journal Articles

Effects of Upstream Wakes on the Boundary Layer Over a Low-Pressure Turbine Blade

Luca De Vincentiis, Kristina Ðurović, Davide Lengani, Daniele Simoni, Jan Pralits, Dan S. Henningson, Ardeshir Hanifi
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. May 2023, 145(5): 051011.
Paper No: TURBO-22-1239
https://doi.org/10.1115/1.4056108
Published Online: November 25, 2022
View Article titled, Effects of Upstream Wakes on the Boundary Layer Over a Low-Pressure Turbine Blade
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Topics: Blades, Boundary layers, Cylinders, Flow (Dynamics), Pressure, Suction, Turbine blades, Turbulence, Wakes, Boundary-value problems
Journal Articles

Correlated Pressure–Velocity Instability in a Transonic High-Pressure Turbine Blade

Matteo Dellacasagrande, Davide Lengani, Ettore Bertolini, Wolfgang Sanz
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. April 2023, 145(4): 041015.
Paper No: TURBO-22-1281
https://doi.org/10.1115/1.4055971
Published Online: November 7, 2022
View Article titled, Correlated Pressure–Velocity Instability in a Transonic High-Pressure Turbine Blade
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Topics: Boundary layers, Pressure, Fluctuations (Physics), Blades, Flow (Dynamics), Large eddy simulation, Suction, Turbulence, Principal component analysis
Proceedings Papers

Evaluation of Different Regression Models Tuned With Experimental Turbine Cascade Data

Matteo Dellacasagrande, Davide Lengani, Pietro Paliotta, Daniele Petronio, Daniele Simoni, Francesco Bertini
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A011, June 13–17, 2022
Paper No: GT2022-81357
https://doi.org/10.1115/GT2022-81357
View Paper titled, Evaluation of Different Regression Models Tuned With Experimental Turbine Cascade Data
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Topics: Cascades (Fluid dynamics), Regression models, Turbines, Databases, Accounting, Collaboration, Errors, Flow (Dynamics), Modeling, Optimization
Proceedings Papers

Correlated Pressure-Velocity Instability in a Transonic High-Pressure Turbine Blade

Matteo Dellacasagrande, Davide Lengani, Ettore Bertolini, Wolfgang Sanz
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A020, June 13–17, 2022
Paper No: GT2022-82205
https://doi.org/10.1115/GT2022-82205
View Paper titled, Correlated Pressure-Velocity Instability in a Transonic High-Pressure Turbine Blade
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Topics: High pressure (Physics), Pressure, Turbine blades, Boundary layers, Waves, Blades, Fluctuations (Physics), Suction, Large eddy simulation, Principal component analysis
Proceedings Papers

Free-Stream Turbulence Induced Boundary-Layer Transition in Low-Pressure Turbines

Luca De Vincentiis, Kristina Ðurović, Davide Lengani, Daniele Simoni, Jan Pralits, Dan S. Henningson, Ardeshir Hanifi
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A015, June 13–17, 2022
Paper No: GT2022-82103
https://doi.org/10.1115/GT2022-82103
View Paper titled, Free-Stream Turbulence Induced Boundary-Layer Transition in Low-Pressure Turbines
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Topics: Boundary layers, Pressure, Turbines, Turbulence, Wakes, Blades, Fluctuations (Physics), Rotors, Turbine blades, Boundary-value problems
Journal Articles

Analysis of the Loss Production Mechanism Due to Cavity–Main Flow Interaction in a Low-Pressure Turbine Stage

Dario Barsi, Davide Lengani, Daniele Simoni, Giulio Venturino, Francesco Bertini, Matteo Giovannini, Filippo Rubechini
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. September 2022, 144(9): 091004.
Paper No: TURBO-22-1013
https://doi.org/10.1115/1.4053745
Published Online: March 4, 2022
View Article titled, Analysis of the Loss Production Mechanism Due to Cavity–Main Flow Interaction in a Low-Pressure Turbine Stage
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Topics: Cavities, Flow (Dynamics), Pressure, Turbines, Cavity flows
Journal Articles

Free-Stream Turbulence-Induced Boundary-Layer Transition in Low-Pressure Turbines

Kristina Ðurović, Luca De Vincentiis, Daniele Simoni, Davide Lengani, Jan Pralits, Dan S. Henningson, Ardeshir Hanifi
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. August 2021, 143(8): 081015.
Paper No: TURBO-20-1371
https://doi.org/10.1115/1.4050450
Published Online: May 3, 2021
View Article titled, Free-Stream Turbulence-Induced Boundary-Layer Transition in Low-Pressure Turbines
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Topics: Blades, Boundary layers, Flow (Dynamics), Pressure, Turbulence, Separation (Technology)
Proceedings Papers

Free-Stream Turbulence Induced Boundary-Layer Transition in Low-Pressure Turbines

Kristina Ðurović, Luca De Vincentiis, Daniele Simoni, Davide Lengani, Jan Pralits, Dan S. Henningson, Ardeshir Hanifi
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A036, September 21–25, 2020
Paper No: GT2020-15808
https://doi.org/10.1115/GT2020-15808
View Paper titled, Free-Stream Turbulence Induced Boundary-Layer Transition in Low-Pressure Turbines
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Topics: Boundary layers, Pressure, Turbines, Turbulence, Blades, Flow (Dynamics), Suction, Boundary-value problems, Bubbles, Cascades (Fluid dynamics)
Proceedings Papers

A Bayesian Approach for the Identification of Cascade Loss Model Strategy

Daniele Simoni, Davide Lengani, Daniele Petronio, Francesco Bertini
Proc. ASME. GT2020, Volume 2B: Turbomachinery, V02BT33A010, September 21–25, 2020
Paper No: GT2020-14625
https://doi.org/10.1115/GT2020-14625
View Paper titled, A Bayesian Approach for the Identification of Cascade Loss Model Strategy
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Topics: Cascades (Fluid dynamics), Accounting, Approximation, Design, Fittings, Flow (Dynamics), Inflow, Polynomials, Pressure, Probability
Journal Articles

On Turbulence Measurements and Analyses in a Two-Stage Two-Spool Turbine Rig

Sabine Bauinger, Stephan Behre, Davide Lengani, Yavuz Guendogdu, Franz Heitmeir, Emil Goettlich
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. July 2017, 139(7): 071008.
Paper No: TURBO-15-1191
https://doi.org/10.1115/1.4035508
Published Online: March 7, 2017
View Article titled, On Turbulence Measurements and Analyses in a Two-Stage Two-Spool Turbine Rig
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Topics: Flow (Dynamics), Fluctuations (Physics), Pressure, Probes, Rotors, Turbines, Turbulence, Wire, Blades, Signals
Proceedings Papers

On Turbulence Measurements and Analyses in a Two-Stage Two-Spool Turbine Rig

Sabine Bauinger, Stephan Behre, Davide Lengani, Yavuz Guendogdu, Franz Heitmeir, Emil Goettlich
Proc. ASME. GT2015, Volume 2C: Turbomachinery, V02CT44A013, June 15–19, 2015
Paper No: GT2015-42698
https://doi.org/10.1115/GT2015-42698
View Paper titled, On Turbulence Measurements and Analyses in a Two-Stage Two-Spool Turbine Rig
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Topics: Turbines, Turbulence, Rotors, Signals, Fluctuations (Physics), Probes, Machine dynamics, Pressure, Turbomachinery, Wire
Proceedings Papers

Comparison of a State of the Art and a High Stage Loading Rotor

Thorsten Selic, Davide Lengani, Florian Schönleitner, Andreas Marn, Dominik Broszat
Proc. ASME. GT2014, Volume 2C: Turbomachinery, V02CT38A052, June 16–20, 2014
Paper No: GT2014-26895
https://doi.org/10.1115/GT2014-26895
View Paper titled, Comparison of a State of the Art and a High Stage Loading Rotor
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Topics: Rotors, Blades, Pressure, Wakes, Aircraft engines, Flow (Dynamics), Fluctuations (Physics), Airfoils, Geometry, Leakage
Journal Articles

Development of a Turning Mid Turbine Frame With Embedded Design—Part I: Design and Steady Measurements

Rosario Spataro, Emil Göttlich, Davide Lengani, Christian Faustmann, Franz Heitmeir
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. July 2014, 136(7): 071008.
Paper No: TURBO-13-1194
https://doi.org/10.1115/1.4025949
Published Online: January 2, 2014
View Article titled, Development of a Turning Mid Turbine Frame With Embedded Design—Part I: Design and Steady Measurements
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Topics: Design, Flow (Dynamics), Pressure, Rotors, Struts (Engineering), Turbines, Ducts
Journal Articles

Development of a Turning Mid Turbine Frame With Embedded Design—Part II: Unsteady Measurements

Rosario Spataro, Emil Göttlich, Davide Lengani, Christian Faustmann, Franz Heitmeir
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. July 2014, 136(7): 071012.
Paper No: TURBO-13-1222
https://doi.org/10.1115/1.4025950
Published Online: January 2, 2014
View Article titled, Development of a Turning Mid Turbine Frame With Embedded Design—Part II: Unsteady Measurements
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Topics: Flow (Dynamics), Fluctuations (Physics), Pressure, Rotors, Turbines, Design, Blades, Struts (Engineering), Wakes
Proceedings Papers

Developement of a Turning Mid Turbine Frame With Embedded Design: Part I — Design and Steady Measurements

Rosario Spataro, Emil Göttlich, Davide Lengani, Christian Faustmann, Franz Heitmeir
Proc. ASME. GT2013, Volume 6B: Turbomachinery, V06BT38A010, June 3–7, 2013
Paper No: GT2013-95279
https://doi.org/10.1115/GT2013-95279
View Paper titled, Developement of a Turning Mid Turbine Frame With Embedded Design: Part I — Design and Steady Measurements
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Topics: Design, Turbines, Turning, Flow (Dynamics), Rotors, Pressure, Aircraft engines, Chords (Trusses), Ducts, Flow visualization
Proceedings Papers

Development of a Turning Mid Turbine Frame With Embedded Design: Part II — Unsteady Measurements

Rosario Spataro, Emil Göttlich, Davide Lengani, Christian Faustmann, Franz Heitmeir
Proc. ASME. GT2013, Volume 6B: Turbomachinery, V06BT38A011, June 3–7, 2013
Paper No: GT2013-95280
https://doi.org/10.1115/GT2013-95280
View Paper titled, Development of a Turning Mid Turbine Frame With Embedded Design: Part II — Unsteady Measurements
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Topics: Design, Turbines, Turning, Flow (Dynamics), Rotors, Chords (Trusses), Pressure, Aircraft engines, Blades, Ducts
Proceedings Papers

Analysis of the Unsteady Flow Field in Turbines by Means of Modal Decomposition

Davide Lengani, Thorsten Selic, Rosario Spataro, Andreas Marn, Emil Göttlich
Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 2533-2543, June 11–15, 2012
Paper No: GT2012-68582
https://doi.org/10.1115/GT2012-68582
View Paper titled, Analysis of the Unsteady Flow Field in Turbines by Means of Modal Decomposition
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Topics: Turbines, Unsteady flow, Flow (Dynamics), Blades, Pressure, Rotors, Computational fluid dynamics, Engineering simulation, Oscillations, Probes
Proceedings Papers

On the Flow Evolution Through a LP Turbine With Wide-Chord Vanes in an S-Shaped Channel

Rosario Spataro, Cornelia Santner, Davide Lengani, Emil Göttlich
Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 1011-1020, June 11–15, 2012
Paper No: GT2012-68178
https://doi.org/10.1115/GT2012-68178
View Paper titled, On the Flow Evolution Through a LP Turbine With Wide-Chord Vanes in an S-Shaped Channel
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Topics: Chords (Trusses), Flow (Dynamics), Turbines, Rotors, Pressure, Ducts, High pressure (Physics), Computational fluid dynamics, Flow visualization, Jet engines
Proceedings Papers

Experimental Investigation of the Unsteady Flow Field Downstream of a Counter-Rotating Two-Spool Turbine Rig

Davide Lengani, Cornelia Santner, Rosario Spataro, Berardo Paradiso, Emil Göttlich
Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 2545-2554, June 11–15, 2012
Paper No: GT2012-68583
https://doi.org/10.1115/GT2012-68583
View Paper titled, Experimental Investigation of the Unsteady Flow Field Downstream of a Counter-Rotating Two-Spool Turbine Rig
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Topics: Turbines, Unsteady flow, Rotors, Flow (Dynamics), Pressure, Engines, Fluctuations (Physics), Aircraft engines, Ducts, High pressure (Physics)
Proceedings Papers

Aerodynamic Effects of an Unshrouded Low Pressure Turbine on a Low Aspect Ratio Exit Guide Vane

Thorsten Selic, Davide Lengani, Andreas Marn, Franz Heitmeir
Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 1275-1286, June 11–15, 2012
Paper No: GT2012-68981
https://doi.org/10.1115/GT2012-68981
View Paper titled, Aerodynamic Effects of an Unshrouded Low Pressure Turbine on a Low Aspect Ratio Exit Guide Vane
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Topics: Guide vanes, Pressure, Turbines, Flow (Dynamics), Aircraft engines, Leakage flows, Clearances (Engineering), Computational fluid dynamics, Flow visualization, Leakage