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Journal Articles

Heat Transfer in a Rotating, Blade-Shaped, Two-Pass Cooling Channel With Various 45-Deg Rib Turbulators and a Tip Turning Vane

I-Lun Chen, Lesley M. Wright, Je-Chin Han, Robert Krewinkel
Journal: Journal of Thermal Science and Engineering Applications
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. February 2023, 15(2): 021014.
Paper No: TSEA-22-1327
DOI: https://doi.org/10.1115/1.4056248
Published Online: December 6, 2022
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Topics: Blades, Cooling, Flow (Dynamics), Heat transfer, Pressure, Rotation, Turning vanes, Coolants, Reynolds number
Proceedings Papers

Assessment of the Flow Field and Heat Transfer in an NGV Using Magnetic Resonance Velocimetry, Thermochromic Liquid Crystals and CFD

Martin Bruschewski, Carolin Wüstenhagen, Clemens Domnick, Robert Krewinkel, Chao-Cheng Shiau, Sven Grundmann, Je-Chin Han
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT15A005, June 13–17, 2022
Paper No: GT2022-79526
DOI: https://doi.org/10.1115/GT2022-79526
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Topics: Computational fluid dynamics, Cooling systems, Flow (Dynamics), Heat transfer, Liquid crystals, Magnetic resonance, Nozzle guide vanes, Turbulence
Proceedings Papers

Mesh Refinement and Inlet Turbulence Intensity in the Numerical Evaluation of Cooling Effectiveness: A Systematic Study on an Industrial Gas Turbine

Federico Lo Presti, Benjamin Winhart, Pascal Post, Francesca di Mare, Alexander Wiedermann, Johannes Greving, Robert Krewinkel
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A010, June 13–17, 2022
Paper No: GT2022-80958
DOI: https://doi.org/10.1115/GT2022-80958
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Topics: Cooling, Industrial gases, Turbines, Turbulence
Proceedings Papers

Heat Transfer in a Rotating, Blade-Shaped, Two-Pass Cooling Channel With Various 45 Deg Rib Turbulators and a Tip Turning Vane

I-Lun Chen, Lesley M. Wright, Je-Chin Han, Robert Krewinkel
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT15A014, June 13–17, 2022
Paper No: GT2022-82035
DOI: https://doi.org/10.1115/GT2022-82035
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Topics: Blades, Cooling, Heat transfer, Turning vanes
Journal Articles

Assessment of the Flow Field and Heat Transfer in a Vane Cooling System Using Magnetic Resonance Velocimetry, Thermochromic Liquid Crystals, and Computational Fluid Dynamics

Martin Bruschewski, Carolin Wüstenhagen, Clemens Domnick, Robert Krewinkel, Chao-Cheng Shiau, Sven Grundmann, Je-Chin Han
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. March 2023, 145(3): 031010.
Paper No: TURBO-22-1157
DOI: https://doi.org/10.1115/1.4055611
Published Online: October 20, 2022
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Topics: Computational fluid dynamics, Flow (Dynamics), Heat transfer, Magnetic resonance, Turbulence, Liquid crystals, Errors, Cooling systems
Journal Articles

High-Resolution Thermal Profiling of a Combustor in a Non-Dedicated Test Using Thermal History Coatings

David Peral, Ahmed Zaid, Christoph Benninghoven, Silvia Araguás-Rodríguez, David Kluß, Solon Karagiannopoulos, Robert Krewinkel, Jörg P. Feist
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. November 2022, 144(11): 111007.
Paper No: TURBO-21-1225
DOI: https://doi.org/10.1115/1.4054635
Published Online: July 21, 2022
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Topics: Coatings, Combustion chambers, Computational fluid dynamics, Flames, Temperature, Thermocouples, Calibration, Cooling, Resolution (Optics), Engines
Journal Articles

Heat Transfer in a Rotating, Blade-Shaped, Two-Pass Cooling Channel With Various 45-Deg Rib Orientations

I-Lun Chen, Izzet Sahin, Lesley M. Wright, Je-Chin Han, Robert Krewinkel
Journal: Journal of Thermal Science and Engineering Applications
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. September 2022, 14(9): 091009.
Paper No: TSEA-21-1626
DOI: https://doi.org/10.1115/1.4053741
Published Online: March 8, 2022
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Topics: Blades, Cooling, Heat transfer, Pressure, Rotation, Flow (Dynamics), Reynolds number
Journal Articles

Comparison of Film Cooling Performance for Different Purge Slot Configurations in a Cylindrical and State-of-the-Art Nozzle Guide Vane

Christian Landfester, Gunther Müller, Robert Krewinkel, Clemens Domnick, Martin Böhle
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. March 2022, 144(3): 031014.
Paper No: TURBO-21-1154
DOI: https://doi.org/10.1115/1.4052456
Published Online: November 2, 2021
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Topics: Coolants, Film cooling, Flow (Dynamics), Nozzle guide vanes, Pressure, Probes, Design, Wakes, Cooling
Journal Articles

Heat Transfer in a Rotating, Blade-Shaped, Two-Pass Cooling Channel With a Variable Aspect Ratio

I-Lun Chen, Izzet Sahin, Lesley M. Wright, Je-Chin Han, Robert Krewinkel
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. February 2022, 144(2): 021011.
Paper No: TURBO-21-1166
DOI: https://doi.org/10.1115/1.4052317
Published Online: October 1, 2021
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Topics: Blades, Cooling, Design, Flow (Dynamics), Heat transfer, Pressure, Reynolds number, Rotation, Exterior walls
Journal Articles

Numerical Investigation of Unsteady Combustor Turbine Interaction for Flexible Power Generation

Federico Lo Presti, Marwick Sembritzky, Benjamin Winhart, Pascal Post, Francesca di Mare, Alexander Wiedermann, Johannes Greving, Robert Krewinkel
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. February 2022, 144(2): 021003.
Paper No: TURBO-21-1146
DOI: https://doi.org/10.1115/1.4052137
Published Online: September 27, 2021
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Topics: Boundary-value problems, Combustion chambers, Temperature, Turbines, Flow (Dynamics), Simulation, Fluctuations (Physics), Stress
Proceedings Papers

Comparison of Film Cooling Performance for Different Purge Slot Configurations in a Cylindrical and State-of-the-Art Nozzle Guide Vane

Christian Landfester, Gunther Müller, Robert Krewinkel, Clemens Domnick, Martin Böhle
Proc. ASME. GT2021, Volume 5A: Heat Transfer — Combustors; Film Cooling, V05AT12A011, June 7–11, 2021
Paper No: GT2021-59229
DOI: https://doi.org/10.1115/GT2021-59229
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Topics: Film cooling, Nozzle guide vanes, Design, Flow (Dynamics), Coolants, Cascades (Fluid dynamics), Engines, High pressure (Physics), Pressure, Turbines
Proceedings Papers

Numerical Investigation of Unsteady Combustor Turbine Interaction For Flexible Power Generation

Federico Lo Presti, Marwick Sembritzky, Benjamin Winhart, Pascal Post, Francesca di Mare, Alexander Wiedermann, Johannes Greving, Robert Krewinkel
Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A021, June 7–11, 2021
Paper No: GT2021-59329
DOI: https://doi.org/10.1115/GT2021-59329
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Topics: Combustion chambers, Energy generation, Stress, Turbines
Proceedings Papers

High-Resolution Thermal Profiling of a Combustor in a Non-Dedicated Test Using Thermal History Coatings

David Peral, Ahmed Zaid, Christoph Benninghoven, Silvia Araguas-Rodríguez, David Kluß, Solon Karagiannopoulos, Robert Krewinkel, Jörg Feist
Proc. ASME. GT2021, Volume 5A: Heat Transfer — Combustors; Film Cooling, V05AT11A005, June 7–11, 2021
Paper No: GT2021-59687
DOI: https://doi.org/10.1115/GT2021-59687
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Topics: Coatings, Combustion chambers, Computational fluid dynamics, Cooling, Gas turbines, Resolution (Optics), Temperature, Thermocouples
Proceedings Papers

Heat Transfer in a Rotating, Blade-Shaped, Two-Pass Cooling Channel With a Variable Aspect Ratio

I-Lun Chen, Izzet Sahin, Lesley M. Wright, Je-Chin Han, Robert Krewinkel
Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT15A012, June 7–11, 2021
Paper No: GT2021-59400
DOI: https://doi.org/10.1115/GT2021-59400
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Topics: Blades, Cooling, Heat transfer
Journal Articles

Heat Transfer in a Rotating, Two-Pass, Variable Aspect Ratio Cooling Channel With Profiled V-Shaped Ribs

I-Lun Chen, Izzet Sahin, Lesley M. Wright, Je-Chin Han, Robert Krewinkel
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. August 2021, 143(8): 081013.
Paper No: TURBO-20-1348
DOI: https://doi.org/10.1115/1.4050447
Published Online: May 3, 2021
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Topics: Cooling, Heat transfer, Reynolds number, Rotation, Flow (Dynamics), Pressure
Proceedings Papers

An Experimental and Numerical Investigation of the Three-Dimensional Flow Field and Heat Transfer of a Row of Impinging Jets

Simla Saglam, Robert Krewinkel, Clemens Domnick, Ken-Ichiro Takeishi
Proc. ASME. GT2020, Volume 7A: Heat Transfer, V07AT15A027, September 21–25, 2020
Paper No: GT2020-15966
DOI: https://doi.org/10.1115/GT2020-15966
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Topics: Computational fluid dynamics, Flow (Dynamics), Heat transfer, Impingement cooling, Jets, Gas turbines, Design, Design methodology, Energy budget (Physics), Engineering systems and industry applications
Proceedings Papers

Heat Transfer in a Rotating, Two-Pass, Variable Aspect Ratio Cooling Channel With Profiled V-Shaped Ribs

I-Lun Chen, Izzet Sahin, Lesley M. Wright, Je-Chin Han, Robert Krewinkel
Proc. ASME. GT2020, Volume 7A: Heat Transfer, V07AT15A036, September 21–25, 2020
Paper No: GT2020-16216
DOI: https://doi.org/10.1115/GT2020-16216
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Topics: Cooling, Heat transfer
Journal Articles

Effect of 45-deg Rib Orientations on Heat Transfer in a Rotating Two-Pass Channel With Aspect Ratio from 4:1 to 2:1

Izzet Sahin, Andrew F Chen, Chao-Cheng Shiau, Je-Chin Han, Robert Krewinkel
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2020, 142(7): 071003.
Paper No: TURBO-20-1006
DOI: https://doi.org/10.1115/1.4046492
Published Online: June 30, 2020
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Topics: Flow (Dynamics), Heat transfer, Reynolds number, Rotation, Pressure, Design
Journal Articles

Turbine Vane Endwall Film Cooling Effectiveness of Different Purge Slot Configurations in a Linear Cascade

Gunther Müller, Christian Landfester, Martin Böhle, Robert Krewinkel
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. March 2020, 142(3): 031008.
Paper No: TURBO-19-1271
DOI: https://doi.org/10.1115/1.4045876
Published Online: February 21, 2020
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Topics: Coolants, Cooling, Film cooling, Flow (Dynamics), Pressure, Turbines, Cascades (Fluid dynamics)
Proceedings Papers

Detailed Heat Transfer Coefficient Measurements on a Scaled Realistic Turbine Blade Internal Cooling System

Chao-Cheng Shiau, Andrew F. Chen, Je-Chin Han, Robert Krewinkel
Proc. ASME. GT2019, Volume 5A: Heat Transfer, V05AT16A001, June 17–21, 2019
Paper No: GT2019-90097
DOI: https://doi.org/10.1115/GT2019-90097
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Topics: Cooling systems, Heat transfer coefficients, Turbine blades, Cooling, Heat transfer, Fins, Additive manufacturing, Blades, Coolants, Design