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Proceedings Papers

Gas Turbine Secondary Air Systems Modeling

Mustafa Kocagul, A. Cihat Arıkan, Omer Uyav, Avni Ertas, James Bruns, Aditya Jayanthi
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT14A021, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-84308
https://doi.org/10.1115/GT2022-84308
View Paper titled, Gas Turbine Secondary Air Systems Modeling
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Topics: Cavities, Gas turbines, Modeling, Orifices
Proceedings Papers

Predicting Emissions Across Design Variations of an Aero-Engine Combustor Using FGM and PISO

Megan Karalus, Dustin Brandt, Liam McManus, Erik Munktell
Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A017, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82291
https://doi.org/10.1115/GT2022-82291
View Paper titled, Predicting Emissions Across Design Variations of an Aero-Engine Combustor Using FGM and PISO
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Topics: Aircraft engines, Combustion chambers, Design, Emissions, Flamelet generated manifold, Modeling, Pressure, Carbon monoxide, Combustion, Cooling
Proceedings Papers

Heat Transfer and Pressure Loss Correlations for Leading Edge, Jet Impingement Using Racetrack-Shaped Jets With Filleted Edges

Ritwik V. Kulkarni, Lesley M. Wright
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT15A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-79362
https://doi.org/10.1115/GT2022-79362
View Paper titled, Heat Transfer and Pressure Loss Correlations for Leading Edge, Jet Impingement Using Racetrack-Shaped Jets With Filleted Edges
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Topics: Heat transfer, Jets, Pressure, Discharge coefficient, Engines, Orifices, Airfoils, Casting, Coolants, Cooling
Proceedings Papers

Experimental Investigation of Acoustic Characteristic on Orifice Shaped With Bias Flow

Melvin Ikwubuo, Jinkwan Song, Jong Guen Lee
Proc. ASME. GT2021, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A033, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60118
https://doi.org/10.1115/GT2021-60118
View Paper titled, Experimental Investigation of Acoustic Characteristic on Orifice Shaped With Bias Flow
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Topics: Acoustics, Combustion, Dynamics (Mechanics), Flow (Dynamics), Orifices, Combustion chambers, S-matrix theory, Waves, Aerodynamic noise, Boundary-value problems
Proceedings Papers

An Integrated Approach to Simulate Gas Turbine Secondary Air System

Ali Izadi, Seyed Hossein Madani, Seyed Vahid Hosseini, Mahmoud Chizari
Proc. ASME. GT2020, Volume 7C: Heat Transfer, V07CT14A014, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14966
https://doi.org/10.1115/GT2020-14966
View Paper titled, An Integrated Approach to Simulate Gas Turbine Secondary Air System
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Topics: Gas turbines, Flow (Dynamics), Design, Turbines, Computational fluid dynamics, Coolants, Disks, Engines, Heat transfer, Modeling
Proceedings Papers

Influence of Labyrinth Clearance on the Flow of Rotating Orifices in a Parallel Labyrinth-Orifice System

Jie Wang, Shuiting Ding, Tian Qiu, Ziqiang Gao
Proc. ASME. GT2020, Volume 7C: Heat Transfer, V07CT14A020, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15296
https://doi.org/10.1115/GT2020-15296
View Paper titled, Influence of Labyrinth Clearance on the Flow of Rotating Orifices in a Parallel Labyrinth-Orifice System
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Topics: Clearances (Engineering), Discharge coefficient, Flow (Dynamics), Orifices
Proceedings Papers

Numerical Analysis of Mass Flow Leakage Through Orifices for Supercritical CO 2 : Two-Phase Flow Effects

Ladislav Vesely, Akshay Khadse, Andres Curbelo, Jayanta S. Kapat, Luca Petrungaro
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T31A017, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15927
https://doi.org/10.1115/GT2020-15927
View Paper titled, Numerical Analysis of Mass Flow Leakage Through Orifices for Supercritical CO 2 : Two-Phase Flow Effects
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Topics: Flow (Dynamics), Leakage, Numerical analysis, Orifices, Supercritical carbon dioxide, Two-phase flow, Computational fluid dynamics, Compressors, Cycles, Equilibrium (Physics)
Proceedings Papers

An Instrumented High-Speed Rotor With Embedded Telemetry for the Continuous Spatial Pressure Profile Measurement in Gas Lubricated Bearings: A Proof of Concept

K. Shalash, J. Schiffmann
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A026, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90983
https://doi.org/10.1115/GT2019-90983
View Paper titled, An Instrumented High-Speed Rotor With Embedded Telemetry for the Continuous Spatial Pressure Profile Measurement in Gas Lubricated Bearings: A Proof of Concept
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Topics: Bearings, Pressure, Rotors, Telemetry, Bushings, Calibration, Journal bearings, Probes, Flow (Dynamics), Orifices
Proceedings Papers

Adiabatic Film Cooling Effectiveness Measurement of High Performance Combustion Liner Slot Jets

Wilmer Flores, Andres Curbelo, Luisana Calderon, Jayanta S. Kapat, Kareem Ahmed
Proc. ASME. GT2019, Volume 5B: Heat Transfer, V05BT19A023, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91783
https://doi.org/10.1115/GT2019-91783
View Paper titled, Adiabatic Film Cooling Effectiveness Measurement of High Performance Combustion Liner Slot Jets
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Topics: Combustion, Film cooling, Jets, Pressure, Absorption, Flow (Dynamics), Fracture (Materials), Fracture (Process), Geometry, Orifices
Proceedings Papers

Experimental Investigation of the Discharge Behavior of Cavitating and Non-Cavitating Flow Through Rotating Radial Orifices

Laura Cordes, Corina Schwitzke, Hans-Jörg Bauer
Proc. ASME. GT2019, Volume 2B: Turbomachinery, V02BT42A001, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90213
https://doi.org/10.1115/GT2019-90213
View Paper titled, Experimental Investigation of the Discharge Behavior of Cavitating and Non-Cavitating Flow Through Rotating Radial Orifices
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Topics: Flow (Dynamics), Orifices, Cavitation, Discharge coefficient, Density, Ducts, Kinematics, Reynolds number, Rotors, Viscosity
Proceedings Papers

Compressor Instability Analysis Within an Hybrid System Subject to Cycle Uncertainties

Alessandra Cuneo, Alberto Traverso, Aristide F. Massardo
Proc. ASME. GT2018, Volume 3: Coal, Biomass, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T06A016, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76504
https://doi.org/10.1115/GT2018-76504
View Paper titled, Compressor Instability Analysis Within an Hybrid System Subject to Cycle Uncertainties
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Topics: Compressors, Cycles, Uncertainty, Surges, Transients (Dynamics), Energy / power systems, Fuel cells, Simulation, Scram, Temperature
Proceedings Papers

Effect of Circumferential Location of Radial Injection on Rotordynamic Performance of Hybrid Air Foil Bearings

Behzad Zamanian Yazdi, Daejong Kim
Proc. ASME. GT2018, Volume 7B: Structures and Dynamics, V07BT34A029, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75983
https://doi.org/10.1115/GT2018-75983
View Paper titled, Effect of Circumferential Location of Radial Injection on Rotordynamic Performance of Hybrid Air Foil Bearings
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Topics: Foil bearings, Rotors, Orifices, Stability, Bearings, Damping, Film thickness, High temperature, Modal analysis, Simulation
Proceedings Papers

Optimization of a 900 mm Tilting-Pad Journal Bearing in Large Steam Turbines by Advanced Modeling and Validation

Ümit Mermertas, Thomas Hagemann, Clément Brichart
Proc. ASME. GT2018, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T29A035, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76766
https://doi.org/10.1115/GT2018-76766
View Paper titled, Optimization of a 900 mm Tilting-Pad Journal Bearing in Large Steam Turbines by Advanced Modeling and Validation
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Topics: Journal bearings, Modeling, Optimization, Steam turbines, Bearings, Rotors, Temperature, Clearances (Engineering), Computation, Computer software
Proceedings Papers

Drag and Heat Reduction Mechanism of the Porous Opposing Jet for Variable Blunt Hypersonic Vehicles

Shibin Li, Wei Huang, Zhenguo Wang, Li Yan
Proc. ASME. GT2018, Volume 5B: Heat Transfer, V05BT18A001, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75151
https://doi.org/10.1115/GT2018-75151
View Paper titled, Drag and Heat Reduction Mechanism of the Porous Opposing Jet for Variable Blunt Hypersonic Vehicles
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Topics: Drag (Fluid dynamics), Heat, Vehicles, Drag reduction, Orifices, Aerodynamics, Design, Disks, Flow (Dynamics), Heating
Proceedings Papers

Hot Gas Ingestion Model Employing Flow Network With Axisymmetric Solvers

Yong W. Kim, Michael N. Okpara, Hans Hamm, Ramendra P. Roy, Hee-Koo Moon
Proc. ASME. GT2018, Volume 5B: Heat Transfer, V05BT15A034, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-77055
https://doi.org/10.1115/GT2018-77055
View Paper titled, Hot Gas Ingestion Model Employing Flow Network With Axisymmetric Solvers
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Topics: Flow (Dynamics), Cavities, Disks, Discharge coefficient, Geometry, Pressure, Sealing (Process), Turbines, Carbon dioxide, Cavity flows
Proceedings Papers

Transient Simulation of Critical Flow With Thermal-Hydraulic System Analysis Code for Supercritical CO 2 Applications

Min Seok Kim, Bong Seong Oh, Jin Su Kwon, Hwa-Young Jung, Jeong Ik Lee
Proc. ASME. GT2017, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A010, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63549
https://doi.org/10.1115/GT2017-63549
View Paper titled, Transient Simulation of Critical Flow With Thermal-Hydraulic System Analysis Code for Supercritical CO 2 Applications
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Topics: Flow (Dynamics), Simulation, Supercritical carbon dioxide, Systems analysis, Transients (Dynamics), Sodium fast reactors, Brayton cycle, Carbon dioxide, Leakage flows, Pressure
Proceedings Papers

Experimental Study on Pressure Losses in Circular Orifices With Inlet Cross Flow

Daniel Feseker, Mats Kinell, Matthias Neef
Proc. ASME. GT2017, Volume 5B: Heat Transfer, V05BT15A018, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-64143
https://doi.org/10.1115/GT2017-64143
View Paper titled, Experimental Study on Pressure Losses in Circular Orifices With Inlet Cross Flow
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Topics: Cross-flow, Orifices, Pressure, Discharge coefficient, Flow (Dynamics), Gas turbines, Air flow, Blades, Cooling, Disks
Proceedings Papers

The Dynamic Characteristic Analysis of Elastic Ring Squeeze Film Damper by Fluid-Structure Interaction Approach

ZhenLin Wang, Ning Xu, XiangYu Yu, ZhanSheng Liu, GuangHui Zhang
Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT34A005, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63276
https://doi.org/10.1115/GT2017-63276
View Paper titled, The Dynamic Characteristic Analysis of Elastic Ring Squeeze Film Damper by Fluid-Structure Interaction Approach
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Topics: Dampers, Fluid structure interaction, Deformation, Film thickness, Aircraft engines, Cavitation, Computational fluid dynamics, Computer simulation, Damping, Finite element methods
Proceedings Papers

On the Force Coefficients of a Flooded, Open Ends Short Length Squeeze Film Damper: From Theory to Practice (and Back)

Luis San Andrés, Sean Den, Sung-Hwa Jeung
Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT34A003, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63152
https://doi.org/10.1115/GT2017-63152
View Paper titled, On the Force Coefficients of a Flooded, Open Ends Short Length Squeeze Film Damper: From Theory to Practice (and Back)
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Topics: Dampers, Damping, Lubricants, Pressure, Inertia (Mechanics), Aircraft engines, Bridges (Structures), Clearances (Engineering), Design, Excitation
Proceedings Papers

Operation of Reheat Combustors With Secondary Air Flow (SAF) Control Valves

Xianfeng Gao, Daniel Burri, Christian Balmer, Adrien Studerus
Proc. ASME. GT2016, Volume 5B: Heat Transfer, V05BT17A014, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57706
https://doi.org/10.1115/GT2016-57706
View Paper titled, Operation of Reheat Combustors With Secondary Air Flow (SAF) Control Valves
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Topics: Air flow, Combustion chambers, Valves, Cooling, Pressure, Stress, Engines, Temperature, Cooling systems, Metals