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Proceedings Papers

Unsteady Upstream Effects in Axial-Flow Supersonic Compressor Stages

H. E. Gallus, D. Bohn, K.-D. Broichhausen
Proc. ASME. GT1979, Volume 1A: Gas Turbines, V01AT01A055, March 12–15, 1979
Publisher: American Society of Mechanical Engineers
Paper No: 79-GT-55
https://doi.org/10.1115/79-GT-55
View Paper titled, Unsteady Upstream Effects in Axial-Flow Supersonic Compressor Stages
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Topics: Axial flow, Compressors, Flow (Dynamics), Rotors, Stators, Design, Pressure, Semiconductors (Materials), Transducers, Blades
Proceedings Papers

Experimental Investigations of a Recently Developed Supersonic Compressor Stage (Rotor and Stage Performance)

H. Simon, D. Bohn
Proc. ASME. GT1974, Volume 1B: General, V01BT02A034, March 30–April 4, 1974
Publisher: American Society of Mechanical Engineers
Paper No: 74-GT-116
https://doi.org/10.1115/74-GT-116
View Paper titled, Experimental Investigations of a Recently Developed Supersonic Compressor Stage (Rotor and Stage Performance)
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Topics: Compressors, Rotors, Stators, Pressure, Pressure measurement, Probes, Shock (Mechanics), Blades, Cascades (Fluid dynamics), Flow (Dynamics)
Proceedings Papers

Operating Experience With Compressors of Large Heavy-Duty Gas Turbines

B. Becker, D. Bohn
Proc. ASME. GT1984, Volume 4: Heat Transfer; Electric Power, V004T10A019, June 4–7, 1984
Publisher: American Society of Mechanical Engineers
Paper No: 84-GT-133
https://doi.org/10.1115/84-GT-133
View Paper titled, Operating Experience With Compressors of Large Heavy-Duty Gas Turbines
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Topics: Compressors, Gas turbines, Blades, Stress, Design, Coatings, Corrosion, Dimensions, Dust, Electric power generation
Proceedings Papers

Study of Pressurized Fluidized Bed Combustion Combined Cycles With Gas Turbine Topping Cycle

D. Bohn, G. H. Dibelius, R. U. Pitt, R. Faatz, G. Cerri, C. Salvini
Proc. ASME. GT1992, Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V003T05A011, June 1–4, 1992
Publisher: American Society of Mechanical Engineers
Paper No: 92-GT-343
https://doi.org/10.1115/92-GT-343
View Paper titled, Study of Pressurized Fluidized Bed Combustion Combined Cycles With Gas Turbine Topping Cycle
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Topics: Combined cycles, Cycles, Fluidized bed combustion, Gas turbines, Coal, Compression, Combustion chambers, High pressure (Physics), High temperature, Natural gas
Proceedings Papers

Flow Pattern and Heat Transfer in a Closed Rotating Annulus

D. Bohn, G. H. Dibelius, E. Deuker, R. Emunds
Proc. ASME. GT1992, Volume 1: Turbomachinery, V001T01A034, June 1–4, 1992
Publisher: American Society of Mechanical Engineers
Paper No: 92-GT-067
https://doi.org/10.1115/92-GT-067
View Paper titled, Flow Pattern and Heat Transfer in a Closed Rotating Annulus
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Topics: Annulus, Flow (Dynamics), Heat transfer, Cavities, Coriolis force, Centrifugal force, Computation, Computers, Cylinders, Density
Proceedings Papers

Comparison Between Experiment and Prediction for a Subsonic Turbulent Separated Boundary Layer

D. Bohn, G. H. Dibelius, Z. Sucharski
Proc. ASME. GT1992, Volume 1: Turbomachinery, V001T01A055, June 1–4, 1992
Publisher: American Society of Mechanical Engineers
Paper No: 92-GT-154
https://doi.org/10.1115/92-GT-154
View Paper titled, Comparison Between Experiment and Prediction for a Subsonic Turbulent Separated Boundary Layer
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Topics: Boundary layers, Turbulence, Boundary layer turbulence, Wakes, Algebra, Blades, Flow (Dynamics), Generators, Suction, Turbine blades
Proceedings Papers

Experimental and Theoretical Investigations of Heat Transfer in Closed Gas-Filled Rotating Annuli

D. Bohn, E. Deuker, R. Emunds, V. Gorzelitz
Proc. ASME. GT1993, Volume 3B: General, V03BT16A048, May 24–27, 1993
Publisher: American Society of Mechanical Engineers
Paper No: 93-GT-292
https://doi.org/10.1115/93-GT-292
View Paper titled, Experimental and Theoretical Investigations of Heat Transfer in Closed Gas-Filled Rotating Annuli
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Topics: Annulus, Heat transfer, Cavities, Heat flux, Flow (Dynamics), Rotors, Centrifugal force, Computers, Convection, Density
Proceedings Papers

Optimizing a Pressurized Fluidized Bed Combustion Combined Cycle With Gas Turbine Topping Cycle

D. Bohn, G. H. Dibelius, R. U. Pitt, R. Faatz, G. Cerri, C. Salvini
Proc. ASME. GT1993, Volume 3C: General, V03CT17A051, May 24–27, 1993
Publisher: American Society of Mechanical Engineers
Paper No: 93-GT-390
https://doi.org/10.1115/93-GT-390
View Paper titled, Optimizing a Pressurized Fluidized Bed Combustion Combined Cycle With Gas Turbine Topping Cycle
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Topics: Combined cycles, Cycles, Fluidized bed combustion, Gas turbines, Coal, Steam, Pressure, Temperature, Boilers, Fuel gasification
Proceedings Papers

Experimental and Theoretical Investigations of Heat Transfer in Closed Gas-Filled Rotating Annuli II

D. Bohn, R. Emunds, V. Gorzelitz, U. Krüger
Proc. ASME. GT1994, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A027, June 13–16, 1994
Publisher: American Society of Mechanical Engineers
Paper No: 94-GT-175
https://doi.org/10.1115/94-GT-175
View Paper titled, Experimental and Theoretical Investigations of Heat Transfer in Closed Gas-Filled Rotating Annuli II
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Topics: Annulus, Heat transfer, Cavities, Gas turbines, Rotors, Flow (Dynamics), Heat flux, Turbines, Blades, Centrifugal force
Proceedings Papers

Numerical Study on Increased Energy Density for the DLN Micromix Hydrogen Combustion Principle

A. Haj Ayed, K. Kusterer, H. H.-W. Funke, J. Keinz, M. Kazari, J. Kitajima, A. Horikawa, K. Okada, D. Bohn
Proc. ASME. GT2014, Volume 4A: Combustion, Fuels and Emissions, V04AT04A057, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25848
https://doi.org/10.1115/GT2014-25848
View Paper titled, Numerical Study on Increased Energy Density for the DLN Micromix Hydrogen Combustion Principle
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Topics: Combustion, Density, Hydrogen, Flames, Nitrogen oxides, Ejectors, Emissions, Gas turbines, Design, Diffusion (Physics)
Journal Articles

Numerical Analysis of Heat Transfer and Flow Stability in an Open Rotating Cavity Using the Maximum Entropy Production Principle

D. Bohn, R. Krewinkel, A. Wolff
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. July 2013, 135(4): 041023.
Paper No: TURBO-12-1173
https://doi.org/10.1115/1.4007613
Published Online: June 5, 2013
View Article titled, Numerical Analysis of Heat Transfer and Flow Stability in an Open Rotating Cavity Using the Maximum Entropy Production Principle
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Topics: Cavities, Disks, Flow (Dynamics), Entropy, Heat transfer, Vortices
Proceedings Papers

Transient Numerical Investigation of Rotor Clocking in 1.5 Stage of an Axial Test Turbine With a Blade-to-Vane Ratio of 1.5

K. Kusterer, N. Moritz, D. Bohn, T. Sugimoto, R. Tanaka
Proc. ASME. GT2010, Volume 7: Turbomachinery, Parts A, B, and C, 2489-2498, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-22902
https://doi.org/10.1115/GT2010-22902
View Paper titled, Transient Numerical Investigation of Rotor Clocking in 1.5 Stage of an Axial Test Turbine With a Blade-to-Vane Ratio of 1.5
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Topics: Blades, Machinery, Rotors, Transients (Dynamics), Turbines, Turbochargers
Proceedings Papers

Numerical Analysis of Heat Transfer and Flow Stability in an Open Rotating Cavity Using the Maximum Entropy Production Principle

D. Bohn, R. Krewinkel, A. Wolff
Proc. ASME. GT2010, Volume 4: Heat Transfer, Parts A and B, 913-920, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-22025
https://doi.org/10.1115/GT2010-22025
View Paper titled, Numerical Analysis of Heat Transfer and Flow Stability in an Open Rotating Cavity Using the Maximum Entropy Production Principle
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Topics: Cavities, Entropy, Flow (Dynamics), Heat transfer, Numerical analysis, Stability, Disks, Buoyancy, Computation, Cooling systems
Proceedings Papers

Reduction of Tip Clearance Losses in an Axial Turbine by Shaped Design of the Blade Tip Region

K. Kusterer, N. Moritz, D. Bohn, T. Sugimoto, R. Tanaka
Proc. ASME. GT2007, Volume 6: Turbo Expo 2007, Parts A and B, 541-551, May 14–17, 2007
Publisher: American Society of Mechanical Engineers
Paper No: GT2007-27303
https://doi.org/10.1115/GT2007-27303
View Paper titled, Reduction of Tip Clearance Losses in an Axial Turbine by Shaped Design of the Blade Tip Region
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Topics: Blades, Clearances (Engineering), Design, Leakage flows, Machinery, Turbines, Turbochargers, Flow (Dynamics), Pressure, Vortices
Proceedings Papers

A Simple Method for Estimating Ingestion of Annulus Gas Into a Turbine Rotor Stator Cavity in the Presence of External Pressure Variations

T. Scanlon, J. Wilkes, D. Bohn, O. Gentilhomme
Proc. ASME. GT2004, Volume 4: Turbo Expo 2004, 257-265, June 14–17, 2004
Publisher: American Society of Mechanical Engineers
Paper No: GT2004-53097
https://doi.org/10.1115/GT2004-53097
View Paper titled, A Simple Method for Estimating Ingestion of Annulus Gas Into a Turbine Rotor Stator Cavity in the Presence of External Pressure Variations
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Topics: Annulus, Cavities, External pressure, Rotors, Stators, Turbines, Collapse, Fluctuations (Physics), Pressure, Calibration
Journal Articles

Prediction and Measurement of Thermoacoustic Improvements in Gas Turbines With Annular Combustion Systems

U. Kru¨ger, J. Hu¨ren, S. Hoffmann, W. Krebs, P. Flohr, D. Bohn
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Technical Papers
J. Eng. Gas Turbines Power. July 2001, 123(3): 557–566.
https://doi.org/10.1115/1.1374437
Published Online: October 1, 2000
View Article titled, Prediction and Measurement of Thermoacoustic Improvements in Gas Turbines With Annular Combustion Systems
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Topics: Acoustics, Combustion systems, Gas turbines, Stability, Flames, Combustion chambers, Oscillations, Combustion
Journal Articles

The Computation of Adjacent Blade-Row Effects in a 1.5-Stage Axial Flow Turbine

R. Emunds, I. K. Jennions, D. Bohn, J. Gier
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 1999, 121(1): 1–10.
https://doi.org/10.1115/1.2841230
Published Online: January 1, 1999
View Article titled, The Computation of Adjacent Blade-Row Effects in a 1.5-Stage Axial Flow Turbine
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Topics: Axial flow, Blades, Computation, Turbines, Flow (Dynamics), Boundary-value problems, Computer simulation, Engineering simulation, Engines, Rotors
Journal Articles

Numerical Predication of the Dynamic Behavior of Turbulent Diffusion Flames

D. Bohn, G. Deutsch, U. Kru¨ger
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. October 1998, 120(4): 713–720.
https://doi.org/10.1115/1.2818458
Published Online: October 1, 1998
View Article titled, Numerical Predication of the Dynamic Behavior of Turbulent Diffusion Flames
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Topics: Flames, Turbulent diffusion, Combustion, Oscillations, Steady state, Transients (Dynamics), Diffusion flames, Frequency response, Stability, Turbulence
Journal Articles

The Effect of Turbulence on the Heat Transfer in Closed Gas-Filled Rotating Annuli

D. Bohn, J. Gier
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 1998, 120(4): 824–830.
https://doi.org/10.1115/1.2841795
Published Online: October 1, 1998
View Article titled, The Effect of Turbulence on the Heat Transfer in Closed Gas-Filled Rotating Annuli
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Topics: Annulus, Heat transfer, Turbulence, Flow (Dynamics), Gas turbines, Rotors, Cavities, Computation, Cooling, Modeling
Journal Articles

Heat Transfer Committee Best 1994 Paper Award: Experimental and Theoretical Investigations of Heat Transfer in Closed Gas-Filled Rotating Annuli II

D. Bohn, R. Emunds, V. Gorzelitz, U. Kru¨ger
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 1996, 118(1): 11–19.
https://doi.org/10.1115/1.2836590
Published Online: January 1, 1996
View Article titled, Heat Transfer Committee Best 1994 Paper Award: Experimental and Theoretical Investigations of Heat Transfer in Closed Gas-Filled Rotating Annuli II
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Topics: Annulus, Heat transfer, Cavities, Gas turbines, Rotors, Flow (Dynamics), Heat flux, Turbines, Blades, Centrifugal force