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Proceedings Papers

APU-Noise Reduction by Novel Muffler Concepts

Karsten Knobloch, Lars Enghardt, Friedrich Bake

Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT43A009, June 11–15, 2018

Paper No: GT2018-76762

DOI: https://doi.org/10.1115/GT2018-76762

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Topics: Noise (Sound), Silencers, Cavities, Design, Flow (Dynamics), Absorption, Acoustics, Damping, Ducts, Microphones

Journal Articles

Experimental Investigation of Cycle Properties, Noise, and Air Pollutant Emissions of an APS3200 Auxiliary Power Unit

Teresa Siebel, Jan Zanger, Andreas Huber, Manfred Aigner, Karsten Knobloch, Friedrich Bake

J. Eng. Gas Turbines Power. June 2018, 140(6): 061201.

Paper No: GTP-17-1390

DOI: https://doi.org/10.1115/1.4038159

Published Online: February 13, 2018

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Topics: Emissions, Exhaust systems, Flow (Dynamics), Noise (Sound), Stress, Temperature, Pressure, Nitrogen oxides, Cycles, Fuels

Proceedings Papers

Experimental Investigation of Cycle Properties, Noise and Air Pollutant Emissions of an APS3200 Auxiliary Power Unit

Teresa Siebel, Jan Zanger, Andreas Huber, Manfred Aigner, Karsten Knobloch, Friedrich Bake

Proc. ASME. GT2017, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Honors and Awards, V001T01A012, June 26–30, 2017

Paper No: GT2017-63523

DOI: https://doi.org/10.1115/GT2017-63523

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Topics: Air pollution, Cycles, Emissions, Noise (Sound), Exhaust systems, Aircraft, Flow (Dynamics), Optimization, Stress, Acoustics

Journal Articles

Experimental Assessment of Noise Generation and Transmission in a High-Pressure Transonic Turbine Stage

Karsten Knobloch, Lars Neuhaus, Friedrich Bake, Paolo Gaetani, Giacomo Persico

J. Turbomach. October 2017, 139(10): 101006.

Paper No: TURBO-16-1278

DOI: https://doi.org/10.1115/1.4036344

Published Online: May 9, 2017

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Topics: Acoustics, Entropy, Excitation, Flow (Dynamics), Noise (Sound), Rotors, Stators, Turbines, Vorticity, Waves

Proceedings Papers

Experimental Assessment of Noise Generation and Transmission in a High-Pressure Transonic Turbine Stage

Karsten Knobloch, Lars Neuhaus, Friedrich Bake, Paolo Gaetani, Giacomo Persico

Proc. ASME. GT2016, Volume 2A: Turbomachinery, V02AT41A007, June 13–17, 2016

Paper No: GT2016-57209

DOI: https://doi.org/10.1115/GT2016-57209

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Topics: High pressure (Physics), Noise (Sound), Turbines, Acoustics, Aircraft engines, Combustion, Combustion chambers, Engines, Entropy, Excitation

Proceedings Papers

Noise Generation in Hot Nozzle Flow

Karsten Knobloch, Tiago Werner, Friedrich Bake

Proc. ASME. GT2015, Volume 2B: Turbomachinery, V02BT41A012, June 15–19, 2015

Paper No: GT2015-43702

DOI: https://doi.org/10.1115/GT2015-43702

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Topics: Flow (Dynamics), Noise (Sound), Nozzles, Combustion, Mach number, Acoustics, Aerospace industry, Combustion chambers, Entropy, Fluctuations (Physics)

Proceedings Papers

Full-Scale Tests on APU Noise Reduction

Karsten Knobloch, André Fischer, Friedrich Bake, Lars Enghardt, Stefan Busse-Gerstengarbe

Proc. ASME. GT2014, Volume 2A: Turbomachinery, V02AT41A011, June 16–20, 2014

Paper No: GT2014-26803

DOI: https://doi.org/10.1115/GT2014-26803

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Topics: Noise control, Emissions, Exhaust systems, Noise (Sound), Silencers, Aircraft, Control systems, Engines, Microphones

Proceedings Papers

Acoustic Measurements of Perforated Liners in Hot and Pressurized Flow

Claus Lahiri, Karsten Knobloch, Friedrich Bake, Lars Enghardt

Proc. ASME. GT2013, Volume 1A: Combustion, Fuels and Emissions, V01AT04A045, June 3–7, 2013

Paper No: GT2013-94674

DOI: https://doi.org/10.1115/GT2013-94674

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Topics: Acoustics, Flow (Dynamics), Combustion chambers, Temperature, Design, High pressure (Physics), High temperature, Pressure, Testing, Absorption

Proceedings Papers

Hot-Acoustic-Testrig (HAT): A Unique Facility for Thermoacoustic Research

Karsten Knobloch, Claus Lahiri, Lars Enghardt, Friedrich Bake, Dieter Peitsch

Proc. ASME. GT2011, Volume 7: Turbomachinery, Parts A, B, and C, 1023-1032, June 6–10, 2011

Paper No: GT2011-45705

DOI: https://doi.org/10.1115/GT2011-45705

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Topics: Acoustics, Flow (Dynamics), Boundary-value problems, Damping, Gas turbines, Instrumentation, Pressure, Temperature, Test facilities

Proceedings Papers

Measurements of Density Pulsations in the Outlet Nozzle of a Combustion Chamber by Rayleigh-Scattering Searching Entropy Waves

Anne Rausch, Andre Fischer, Holger Konle, Andrea Gaertlein, Steffen Nitsch, Karsten Knobloch, Friedrich Bake, Ingo Ro¨hle

Proc. ASME. GT2010, Volume 3: Controls, Diagnostics and Instrumentation; Cycle Innovations; Marine, 67-78, June 14–18, 2010

Paper No: GT2010-22492

DOI: https://doi.org/10.1115/GT2010-22492

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Topics: Combustion chambers, Density, Entropy, Nozzles, Optical measurement, Oscillations, Rayleigh scattering, Waves

Proceedings Papers

Hot-Wire Measurements in a High Speed Counter Rotating Turbo Fan Rig

Robert Meyer, Karsten Knobloch, Johannes Linden

Proc. ASME. GT2010, Volume 7: Turbomachinery, Parts A, B, and C, 247-254, June 14–18, 2010

Paper No: GT2010-22569

DOI: https://doi.org/10.1115/GT2010-22569

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Topics: Turbochargers, Wire, Rotors, Turbulence, Unsteady flow, Wakes, Aerospace industry, Blades, Emission spectroscopy, Flow (Dynamics)

Journal Articles

Measurements of Density Pulsations in the Outlet Nozzle of a Combustion Chamber by Rayleigh-Scattering Searching Entropy Waves

Anne Rausch, Andre Fischer, Holger Konle, Andrea Gaertlein, Steffen Nitsch, Karsten Knobloch, Friedrich Bake, Ingo Röhle

J. Eng. Gas Turbines Power. March 2011, 133(3): 031601.

DOI: https://doi.org/10.1115/1.4002018

Published Online: November 10, 2010

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Topics: Combustion chambers, Density, Entropy, Nozzles, Oscillations, Rayleigh scattering, Waves, Pressure, Combustion, Acoustics

Proceedings Papers

Exploratory Experiments on Machined Riblets for 2-D Compressor Blades

Karsten Oehlert, Joerg R. Seume, Frank Siegel, Andreas Ostendorf, Bo Wang, Berend Denkena, Taras Vynnyk, Eduard Reithmeier, Wolfram Hage, Karsten Knobloch, Robert Meyer

Proc. ASME. IMECE2007, Volume 1: Advances in Aerospace Technology, 25-39, November 11–15, 2007

Paper No: IMECE2007-43457

DOI: https://doi.org/10.1115/IMECE2007-43457

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Topics: Blades, Compressors, Lasers, Skin friction (Fluid dynamics), Grinding, Ablation (Vaporization technology), Cascades (Fluid dynamics), Flat plates, Geometry, Machining

Journal citation

NARROW

APU-Noise Reduction by Novel Muffler Concepts

Experimental Investigation of Cycle Properties, Noise, and Air Pollutant Emissions of an APS3200 Auxiliary Power Unit

Experimental Investigation of Cycle Properties, Noise and Air Pollutant Emissions of an APS3200 Auxiliary Power Unit

Experimental Assessment of Noise Generation and Transmission in a High-Pressure Transonic Turbine Stage

Experimental Assessment of Noise Generation and Transmission in a High-Pressure Transonic Turbine Stage

Noise Generation in Hot Nozzle Flow

Full-Scale Tests on APU Noise Reduction

Acoustic Measurements of Perforated Liners in Hot and Pressurized Flow

Hot-Acoustic-Testrig (HAT): A Unique Facility for Thermoacoustic Research

Measurements of Density Pulsations in the Outlet Nozzle of a Combustion Chamber by Rayleigh-Scattering Searching Entropy Waves

Hot-Wire Measurements in a High Speed Counter Rotating Turbo Fan Rig

Measurements of Density Pulsations in the Outlet Nozzle of a Combustion Chamber by Rayleigh-Scattering Searching Entropy Waves

Exploratory Experiments on Machined Riblets for 2-D Compressor Blades

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