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Proceedings Papers

Heat Transfer Enhancement in a Double Sequential Impingement Channel

Michele Gaffuri, Peter Ott, Shailendra Naik, Marc Henze
Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT15A007, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58913
https://doi.org/10.1115/GT2021-58913
View Paper titled, Heat Transfer Enhancement in a Double Sequential Impingement Channel
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Topics: Heat transfer, Pressure, Corners (Structural elements), Flow (Dynamics), Cooling, Heat transfer coefficients, Liquid crystals, Transients (Dynamics)
Journal Articles

Aerothermal Investigation of a Single Row Divergent Narrow Impingement Channel by Particle Image Velocimetry and Liquid Crystal Thermography

Alexandros Terzis, Christoforos Skourides, Peter Ott, Jens von Wolfersdorf, Bernhard Weigand
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. May 2016, 138(5): 051003.
Paper No: TURBO-15-1141
https://doi.org/10.1115/1.4032328
Published Online: January 20, 2016
View Article titled, Aerothermal Investigation of a Single Row Divergent Narrow Impingement Channel by Particle Image Velocimetry and Liquid Crystal Thermography
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Topics: Flow (Dynamics), Heat transfer, Jets, Liquid crystals, Particulate matter, Thermography, Reynolds number
Journal Articles

Improved Accuracy in Jet Impingement Heat Transfer Experiments Considering the Layer Thicknesses of a Triple Thermochromic Liquid Crystal Coating

Alexandros Terzis, Stavros Bontitsopoulos, Peter Ott, Jens von Wolfersdorf, Anestis I. Kalfas
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. February 2016, 138(2): 021003.
Paper No: TURBO-15-1094
https://doi.org/10.1115/1.4031786
Published Online: November 3, 2015
View Article titled, Improved Accuracy in Jet Impingement Heat Transfer Experiments Considering the Layer Thicknesses of a Triple Thermochromic Liquid Crystal Coating
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Topics: Coatings, Heat transfer, Heat transfer coefficients, Temperature, Uncertainty, Flow (Dynamics), Liquid crystals, Calibration
Proceedings Papers

Turbulent Scale Resolving Modelling of Rotating Stall in Low-Pressure Steam Turbines Operated Under Low Volume Flow Conditions

Benjamin Megerle, Timothy Stephen Rice, Ivan McBean, Peter Ott
Proc. ASME. GT2015, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A016, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42498
https://doi.org/10.1115/GT2015-42498
View Paper titled, Turbulent Scale Resolving Modelling of Rotating Stall in Low-Pressure Steam Turbines Operated Under Low Volume Flow Conditions
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Topics: Flow (Dynamics), Modeling, Pressure, Steam turbines, Turbulence, Computational fluid dynamics, Blades, Excitation, Simulation, Turbines
Proceedings Papers

Aeroelastic Investigation of an Annular Transonic Compressor Cascade: Experimental Results

Virginie Anne Chenaux, Achim Zanker, Peter Ott
Proc. ASME. GT2015, Volume 7B: Structures and Dynamics, V07BT34A009, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43317
https://doi.org/10.1115/GT2015-43317
View Paper titled, Aeroelastic Investigation of an Annular Transonic Compressor Cascade: Experimental Results
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Topics: Cascades (Fluid dynamics), Compressors, Blades, Stability, Flutter (Aerodynamics), Pressure, Resolution (Optics), Transonic flow, Vibration, Airfoils
Proceedings Papers

Experimental and Numerical Assessment of the Aeroelastic Stability of Blade Pair Packages

Almudena Vega, Roque Corral, Achim Zanker, Peter Ott
Proc. ASME. GT2014, Volume 7B: Structures and Dynamics, V07BT35A006, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25607
https://doi.org/10.1115/GT2014-25607
View Paper titled, Experimental and Numerical Assessment of the Aeroelastic Stability of Blade Pair Packages
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Topics: Blades, Stability, Pressure, Torsion, Airfoils, Engineering simulation, Simulation, Turbines, Vibration, Cascades (Fluid dynamics)
Proceedings Papers

Detailed Heat Transfer Distributions of Narrow Impingement Channels With Varying Jet Diameter

Alexandros Terzis, Magali Cochet, Jens von Wolfersdorf, Bernhard Weigand, Peter Ott
Proc. ASME. GT2014, Volume 5A: Heat Transfer, V05AT12A028, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25910
https://doi.org/10.1115/GT2014-25910
View Paper titled, Detailed Heat Transfer Distributions of Narrow Impingement Channels With Varying Jet Diameter
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Topics: Heat transfer, Airfoils, Coolants, Cooling, Design, Discharge coefficient, Geometry, Heat transfer coefficients, Jets, Liquid crystals
Journal Articles

Effect of Varying Jet Diameter on the Heat Transfer Distributions of Narrow Impingement Channels

Alexandros Terzis, Peter Ott, Magali Cochet, Jens von Wolfersdorf, Bernhard Weigand
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. February 2015, 137(2): 021004.
Paper No: TURBO-14-1155
https://doi.org/10.1115/1.4028294
Published Online: September 10, 2014
View Article titled, Effect of Varying Jet Diameter on the Heat Transfer Distributions of Narrow Impingement Channels
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Topics: Heat transfer, Jets, Flow (Dynamics), Heat transfer coefficients, Liquid crystals
Journal Articles

Detailed Heat Transfer Distributions of Narrow Impingement Channels for Cast-In Turbine Airfoils

Alexandros Terzis, Peter Ott, Jens von Wolfersdorf, Bernhard Weigand, Magali Cochet
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. September 2014, 136(9): 091011.
Paper No: TURBO-13-1228
https://doi.org/10.1115/1.4027679
Published Online: June 3, 2014
View Article titled, Detailed Heat Transfer Distributions of Narrow Impingement Channels for Cast-In Turbine Airfoils
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Topics: Heat transfer, Heat transfer coefficients, Flow (Dynamics), Liquid crystals, Turbines, Airfoils
Journal Articles

Unsteady Aerodynamics of Low-Pressure Steam Turbines Operating Under Low Volume Flow

Benjamin Megerle, Ivan McBean, Timothy Stephen Rice, Peter Ott
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. September 2014, 136(9): 091008.
Paper No: TURBO-13-1252
https://doi.org/10.1115/1.4027373
Published Online: May 2, 2014
View Article titled, Unsteady Aerodynamics of Low-Pressure Steam Turbines Operating Under Low Volume Flow
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Topics: Computational fluid dynamics, Flow (Dynamics), Pressure, Steam turbines, Blades, Turbines, Steam, Exhaust systems
Journal Articles

Hole Staggering Effect on the Cooling Performance of Narrow Impingement Channels Using the Transient Liquid Crystal Technique

Alexandros Terzis, Guillaume Wagner, Jens von Wolfersdorf, Peter Ott, Bernhard Weigand
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. July 2014, 136(7): 071701.
Paper No: HT-12-1477
https://doi.org/10.1115/1.4027250
Published Online: April 8, 2014
View Article titled, Hole Staggering Effect on the Cooling Performance of Narrow Impingement Channels Using the Transient Liquid Crystal Technique
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Topics: Cooling, Flow (Dynamics), Heat transfer, Heat transfer coefficients, Jets, Liquid crystals, Temperature, Transients (Dynamics), Turbines, Reynolds number
Proceedings Papers

Unsteady Aerodynamics of Low-Pressure Steam Turbines Operating Under Low Volume Flow

Benjamin Megerle, Timothy Stephen Rice, Ivan McBean, Peter Ott
Proc. ASME. GT2013, Volume 5B: Oil and Gas Applications; Steam Turbines, V05BT25A034, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-95409
https://doi.org/10.1115/GT2013-95409
View Paper titled, Unsteady Aerodynamics of Low-Pressure Steam Turbines Operating Under Low Volume Flow
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Topics: Aerodynamics, Flow (Dynamics), Pressure, Steam turbines, Blades, Turbines, Excitation, Risk, Unsteady flow, Vibration
Proceedings Papers

Numerical and Experimental Investigation of the Aerodynamic Excitation of a Model Low-Pressure Steam Turbine Stage Operating Under Low Volume Flow

Benjamin Megerle, Timothy Stephen Rice, Ivan McBean, Peter Ott
Proc. ASME. GT2012, Volume 6: Oil and Gas Applications; Concentrating Solar Power Plants; Steam Turbines; Wind Energy, 403-414, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-68384
https://doi.org/10.1115/GT2012-68384
View Paper titled, Numerical and Experimental Investigation of the Aerodynamic Excitation of a Model Low-Pressure Steam Turbine Stage Operating Under Low Volume Flow
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Topics: Excitation, Flow (Dynamics), Pressure, Steam turbines, Blades, Computational fluid dynamics, Turbines, Ventilation, Annulus, Clearances (Engineering)
Proceedings Papers

Hole Staggering Effect on the Cooling Performance of Narrow Impingement Channels

Alexandros Terzis, Guillaume Wagner, Peter Ott
Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 127-138, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-68323
https://doi.org/10.1115/GT2012-68323
View Paper titled, Hole Staggering Effect on the Cooling Performance of Narrow Impingement Channels
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Topics: Cooling, Impingement cooling, Heat transfer coefficients, Liquid crystals, Electromagnetic scattering, Errors, Heat transfer, Reynolds number, Temperature, Transients (Dynamics)
Journal Articles

Numerical and Experimental Investigation of the Aerodynamic Excitation of a Model Low-Pressure Steam Turbine Stage Operating Under Low Volume Flow

Benjamin Megerle, Timothy Stephen Rice, Ivan McBean, Peter Ott
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2013, 135(1): 012602.
Paper No: GTP-12-1199
https://doi.org/10.1115/1.4007334
Published Online: November 26, 2012
View Article titled, Numerical and Experimental Investigation of the Aerodynamic Excitation of a Model Low-Pressure Steam Turbine Stage Operating Under Low Volume Flow
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Topics: Blades, Flow (Dynamics), Pressure, Steam turbines, Computational fluid dynamics, Excitation, Rotors, Probes
Proceedings Papers

Aeroelasticity at Reversed Flow Conditions: Part 1—Numerical and Experimental Investigations of a Compressor Cascade With Controlled Vibration

Harald Schoenenborn, Virginie Chenaux, Peter Ott
Proc. ASME. GT2011, Volume 6: Structures and Dynamics, Parts A and B, 1171-1181, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45034
https://doi.org/10.1115/GT2011-45034
View Paper titled, Aeroelasticity at Reversed Flow Conditions: Part 1—Numerical and Experimental Investigations of a Compressor Cascade With Controlled Vibration
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Topics: Aeroelasticity, Cascades (Fluid dynamics), Compressors, Flow (Dynamics), Vibration, Blades, Surges, Damping, Design, Steady state
Proceedings Papers

Leading Edge Film Cooling and the Influence of Shaped Holes at Design and Off-Design Conditions

Guillaume Wagner, Peter Ott, Gregory Vogel, Shailendra Naik
Proc. ASME. GT2007, Volume 4: Turbo Expo 2007, Parts A and B, 577-587, May 14–17, 2007
Publisher: American Society of Mechanical Engineers
Paper No: GT2007-27715
https://doi.org/10.1115/GT2007-27715
View Paper titled, Leading Edge Film Cooling and the Influence of Shaped Holes at Design and Off-Design Conditions
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Topics: Design, Film cooling, Pressure, Suction, Coolants, Cooling, Heat transfer, Jets, Liquid crystals, Momentum