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Proceedings Papers

Uncertainty Based Optimization Strategy for the Gappy-POD Multi-Fidelity Method

Bernhard Poethke, Stefan Völker, Konrad Vogeler
Proc. ASME. GT2020, Volume 2D: Turbomachinery, V02DT38A017, September 21–25, 2020
Paper No: GT2020-15166
DOI: https://doi.org/10.1115/GT2020-15166
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Topics: Optimization, Uncertainty, Airfoils, Design, Uncertainty quantification, Algorithms, Engineering simulation, Errors, Experimental design, Fittings
Journal Articles

Experimental Study on the Influence of Film Cooling Hole Extraction on Heat Transfer and Flow Field in Internal Ribbed Cooling Channels of Turbine Blades

Marlene Böttger, Martin Lange, Ronald Mailach, Konrad Vogeler
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2020, 142(10): 101005.
Paper No: TURBO-19-1166
DOI: https://doi.org/10.1115/1.4047608
Published Online: September 14, 2020
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Topics: Cooling, Flow (Dynamics), Heat transfer, Film cooling
Journal Articles

Experimental and Numerical Investigation of a Circumferential Groove Casing Treatment in a Low-Speed Axial Research Compressor at Different Tip Clearances

Matthias Rolfes, Martin Lange, Konrad Vogeler, Ronald Mailach
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. December 2017, 139(12): 121009.
Paper No: TURBO-17-1125
DOI: https://doi.org/10.1115/1.4037822
Published Online: October 3, 2017
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Topics: Clearances (Engineering), Compressors, Flow (Dynamics), Pressure, Rotors, Blades, Leakage, Computational fluid dynamics, Chords (Trusses), Vortices
Proceedings Papers

Experimental and Numerical Investigation of a Circumferential Groove Casing Treatment in a Low Speed Axial Research Compressor at Different Tip Clearances

Matthias Rolfes, Martin Lange, Konrad Vogeler, Ronald Mailach
Proc. ASME. GT2017, Volume 2A: Turbomachinery, V02AT39A003, June 26–30, 2017
Paper No: GT2017-63051
DOI: https://doi.org/10.1115/GT2017-63051
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Topics: Compressors, Clearances (Engineering), Pressure, Rotors, Chords (Trusses), Blades, Flow (Dynamics), High pressure (Physics), Pressure measurement, Probes
Journal Articles

Comparison of Two Methods for Sensitivity Analysis of Compressor Blades

Robin Schmidt, Matthias Voigt, Konrad Vogeler, Marcus Meyer
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. November 2017, 139(11): 111006.
Paper No: TURBO-17-1065
DOI: https://doi.org/10.1115/1.4037127
Published Online: August 16, 2017
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Topics: Blades, Compressors, Flow (Dynamics), Rotors, Sensitivity analysis, Simulation, Geometry, Pressure, Design
Journal Articles

Geometrical Modification of the Unsteady Pressure to Reduce Low-Pressure Turbine Flutter

Christian Peeren, Konrad Vogeler
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. September 2017, 139(9): 091011.
Paper No: TURBO-16-1239
DOI: https://doi.org/10.1115/1.4036343
Published Online: May 2, 2017
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Topics: Blades, Design, Flow (Dynamics), Flutter (Aerodynamics), Geometry, Optimization, Pressure, Turbine blades, Turbines, Stability
Proceedings Papers

Comparison of Two Methods for Sensitivity Analysis of Compressor Blades

Robin Schmidt, Matthias Voigt, Konrad Vogeler, Marcus Meyer
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT29A003, June 13–17, 2016
Paper No: GT2016-57378
DOI: https://doi.org/10.1115/GT2016-57378
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Topics: Blades, Compressors, Sensitivity analysis, Computational fluid dynamics, Simulation, Geometry, Rotors, Shapes, Flow (Dynamics), High pressure (Physics)
Proceedings Papers

Setup, Validation and Probabilistic Robustness Estimation of a Model for Prediction of LCF in Steam Turbine Rotors

David Pusch, Matthias Voigt, Konrad Vogeler, Peter Dumstorff, Henning Almstedt
Proc. ASME. GT2016, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A031, June 13–17, 2016
Paper No: GT2016-57321
DOI: https://doi.org/10.1115/GT2016-57321
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Topics: Robustness, Rotors, Steam turbines, Boundary-value problems, Stress, Finite element model, Temperature, Transients (Dynamics), Turbines, Electromagnetic scattering
Proceedings Papers

Analysis of High Pressure Turbine Nozzle Guide Vanes Considering Geometric Variations

Lars Högner, Alkin Nasuf, Paul Voigt, Matthias Voigt, Konrad Vogeler, Marcus Meyer, Christopher Berridge, Frederic Goenaga
Proc. ASME. GT2016, Volume 2C: Turbomachinery, V02CT45A025, June 13–17, 2016
Paper No: GT2016-57502
DOI: https://doi.org/10.1115/GT2016-57502
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Topics: High pressure (Physics), Nozzle guide vanes, Turbines, Manufacturing, Computer-aided design, Electromagnetic scattering, Computational fluid dynamics, Design, Engines, Geometry
Proceedings Papers

Effects of Turbulent Boundary Conditions on the Prediction of the Secondary Flow Field in a Linear Compressor Cascade

Peter Busse, Andreas Krug, Martin Lange, Konrad Vogeler, Ronald Mailach
Proc. ASME. GT2016, Volume 2A: Turbomachinery, V02AT37A011, June 13–17, 2016
Paper No: GT2016-56455
DOI: https://doi.org/10.1115/GT2016-56455
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Topics: Boundary-value problems, Cascades (Fluid dynamics), Compressors, Flow (Dynamics), Turbulence, Boundary layers, Channel flow, Clearances (Engineering), Differential equations, Energy dissipation
Proceedings Papers

Experimental Investigation of Circumferential Groove Casing Treatments for Large Tip Clearances in a Low Speed Axial Research Compressor

Matthias Rolfes, Martin Lange, Konrad Vogeler
Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT37A021, June 15–19, 2015
Paper No: GT2015-42646
DOI: https://doi.org/10.1115/GT2015-42646
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Topics: Compressors, Rotors, Annulus, Chords (Trusses), Clearances (Engineering), Flow (Dynamics), High pressure (Physics), Probes, Transients (Dynamics)
Proceedings Papers

A Curvature Based Algorithm for Treatment of Cooling Holes in Polygon Meshes of Turbine Blades

Lars Högner, Matthias Voigt, Konrad Vogeler, Marcus Meyer, Christopher Berridge
Proc. ASME. GT2015, Volume 2B: Turbomachinery, V02BT39A025, June 15–19, 2015
Paper No: GT2015-42841
DOI: https://doi.org/10.1115/GT2015-42841
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Topics: Algorithms, Cooling, Turbine blades, Airfoils
Journal Articles

Experimental Investigation Into the Effects of the Steady Wake-Tip Clearance Vortex Interaction in a Compressor Cascade

Andreas Krug, Peter Busse, Konrad Vogeler
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. June 2015, 137(6): 061006.
Paper No: TURBO-14-1244
DOI: https://doi.org/10.1115/1.4028797
Published Online: June 1, 2015
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Topics: Blades, Cascades (Fluid dynamics), Clearances (Engineering), Compressors, Flow (Dynamics), Vortices, Wakes, Pressure, Leakage flows
Proceedings Papers

The Potential of Sequential Combustion for High Bypass Jet Engines

Konrad Vogeler
Proc. ASME. GT1998, Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery, V002T02A006, June 2–5, 1998
Paper No: 98-GT-311
DOI: https://doi.org/10.1115/98-GT-311
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Topics: Combustion, Jet engines, Engines, Cycles, Turbines, Flow (Dynamics), Pressure, Thrust, Fuel consumption, Fuels
Proceedings Papers

An Experimental Investigation of a Tandem Stator Flow Characteristic in a Low Speed Axial Research Compressor

Alrik Tesch, Martin Lange, Konrad Vogeler, Jens Ortmanns, Erik Johann, Volker Gümmer
Proc. ASME. GT2014, Volume 2A: Turbomachinery, V02AT37A029, June 16–20, 2014
Paper No: GT2014-26104
DOI: https://doi.org/10.1115/GT2014-26104
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Topics: Compressors, Flow (Dynamics), Stators, Design, Blades, Fluids, Guide vanes, High pressure (Physics), Jet engines, Power density
Proceedings Papers

Effects of the Steady Wake-Tip Clearance Vortex Interaction in a Compressor Cascade: Part I — Experimental Investigations

Andreas Krug, Peter Busse, Konrad Vogeler
Proc. ASME. GT2014, Volume 2A: Turbomachinery, V02AT37A030, June 16–20, 2014
Paper No: GT2014-26120
DOI: https://doi.org/10.1115/GT2014-26120
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Topics: Cascades (Fluid dynamics), Clearances (Engineering), Compressors, Vortices, Wakes, Blades, Flow (Dynamics), Aerodynamic flow, Pressure, Probes
Proceedings Papers

Effects of the Steady Wake-Tip Clearance Vortex Interaction in a Compressor Cascade: Part II — Numerical Investigations

Peter Busse, Andreas Krug, Konrad Vogeler
Proc. ASME. GT2014, Volume 2A: Turbomachinery, V02AT37A031, June 16–20, 2014
Paper No: GT2014-26121
DOI: https://doi.org/10.1115/GT2014-26121
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Topics: Cascades (Fluid dynamics), Clearances (Engineering), Compressors, Vortices, Wakes, Flow (Dynamics), Steady state, Aerodynamic flow, Blades, Computation
Proceedings Papers

The Periodical Interaction of the Tip Clearance Flow in the Blade Rows of Axial Compressors

Ronald Mailach, Helmut Sauer, Konrad Vogeler
Proc. ASME. GT2001, Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, V001T03A004, June 4–7, 2001
Paper No: 2001-GT-0299
DOI: https://doi.org/10.1115/2001-GT-0299
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Topics: Blades, Clearances (Engineering), Compressors, Flow (Dynamics), Rotors, Cascades (Fluid dynamics), Design, Turbomachinery, Wake turbulence, Flow instability
Journal Articles

Single and Multiple Row Endwall Film-Cooling of a Highly Loaded First Turbine Vane With Variation of Loading

Martin Kunze, Konrad Vogeler, Michael Crawford, Glenn Brown
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. June 2014, 136(6): 061012.
Paper No: TURBO-13-1045
DOI: https://doi.org/10.1115/1.4025688
Published Online: November 28, 2013
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Topics: Cascades (Fluid dynamics), Coolants, Cooling, Film cooling, Flow (Dynamics), Pressure, Temperature, Airfoils, Jets
Proceedings Papers

Flow Field Investigations on the Effect of Rib Placement in a Cooling Channel With Film-Cooling

Martin Kunze, Konrad Vogeler
Proc. ASME. GT2013, Volume 3A: Heat Transfer, V03AT12A001, June 3–7, 2013
Paper No: GT2013-94096
DOI: https://doi.org/10.1115/GT2013-94096
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Topics: Cooling, Film cooling, Flow (Dynamics), Coolants, Reynolds number, Turbulence, Computer simulation, Flat plates, Laser Doppler anemometry, Lasers