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Gary D. Lock
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Journal Articles

On the Relationship Between Swirl and Unsteadiness Within Turbine Rim Seals

Simon Vella, Hui Tang, Mauro Carnevale, James A. Scobie, Gary D. Lock, Francesco Salvatori, Carl M. Sangan
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2025, 147(4): 041031.
Paper No: GTP-24-1653
https://doi.org/10.1115/1.4066997
Published Online: December 11, 2024
View Articletitled, On the Relationship Between Swirl and Unsteadiness Within Turbine Rim Seals
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Topics: Annulus, Clearances (Engineering), Flow (Dynamics), Geometry, Rotors, Sealing (Process), Stators, Turbines, Wheels, Pressure
Journal Articles

Mass and Heat Exchange in Rotating Compressor Cavities With Variable Cob Separation

Tom E. W. Nicholas, Mikolaj J. Pernak, Gary D. Lock, James A. Scobie, Hui Tang
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2025, 147(1): 011018.
Paper No: GTP-24-1396
https://doi.org/10.1115/1.4066247
Published Online: September 19, 2024
View Articletitled, Mass and Heat Exchange in Rotating Compressor Cavities With Variable Cob Separation
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Topics: Cavities, Disks, Flow (Dynamics), Heat transfer, Plumes (Fluid dynamics), Temperature, Vortices, Compressors
Journal Articles

A Combined Experimental and Turbulence-Resolved Modeling Approach for Aeroengine Turbine Rim Seals

Simon Vella, Peter Darby, Mauro Carnevale, James A. Scobie, Gary D. Lock, Clément Jarrossay, Francesco Salvatori, Damien Bonneau, Carl M. Sangan
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2024, 146(8): 081020.
Paper No: GTP-23-1656
https://doi.org/10.1115/1.4064803
Published Online: March 22, 2024
View Articletitled, A Combined Experimental and Turbulence-Resolved Modeling Approach for Aeroengine Turbine Rim Seals
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Topics: Computation, Flow (Dynamics), Leakage flows, Rotors, Stators, Turbines, Turbulence, Wheels, Modeling, Pressure
Journal Articles

Conjugate Modeling of a Closed Co-Rotating Compressor Cavity

James Parry, Hui Tang, James A. Scobie, Gary D. Lock, Mauro Carnevale
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2024, 146(5): 051007.
Paper No: GTP-23-1555
https://doi.org/10.1115/1.4063632
Published Online: December 8, 2023
View Articletitled, Conjugate Modeling of a Closed Co-Rotating Compressor Cavity
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Topics: Cavities, Disks, Flow (Dynamics), Fluids, Heat transfer, Modeling, Temperature, Compressors, Buoyancy, Simulation
Journal Articles

Fluid Dynamics of Turbine Rim Seal Structures: A Physical Interpretation Using URANS

Giove De Cosmo, James A. Scobie, Gary D. Lock, Carl M. Sangan, Mauro Carnevale
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2023, 145(3): 031009.
Paper No: GTP-22-1460
https://doi.org/10.1115/1.4055752
Published Online: December 5, 2022
View Articletitled, Fluid Dynamics of Turbine Rim Seal Structures: A Physical Interpretation Using URANS
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Topics: Annulus, Blades, Cavities, Computational fluid dynamics, Design, Disks, Flow (Dynamics), Fluid dynamics, Pressure, Turbines
Journal Articles

A New Interpretation of Hot Gas Ingress Through Turbine Rim Seals Influenced by Mainstream Annulus Swirl

Dimitrios Graikos, Hui Tang, Carl M. Sangan, Gary D. Lock, James A. Scobie
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2022, 144(11): 111005.
Paper No: GTP-22-1355
https://doi.org/10.1115/1.4055457
Published Online: September 20, 2022
View Articletitled, A New Interpretation of Hot Gas Ingress Through Turbine Rim Seals Influenced by Mainstream Annulus Swirl
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Topics: Annulus, Clearances (Engineering), Flow (Dynamics), Rotors, Turbines, Wheels, Pressure, Turbulence, Sealing (Process)
Journal Articles

Measurement of Heat Transfer and Flow Structures in a Closed Rotating Cavity

Richard W. Jackson, Hui Tang, James A. Scobie, J. Michael Owen, Gary D. Lock
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2022, 144(5): 051005.
Paper No: GTP-21-1400
https://doi.org/10.1115/1.4053392
Published Online: February 21, 2022
View Articletitled, Measurement of Heat Transfer and Flow Structures in a Closed Rotating Cavity
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Topics: Cavities, Disks, Flow (Dynamics), Heat transfer, Temperature, Vortices, Heat flux
Journal Articles

Unsteady Pressure Measurements in a Heated Rotating Cavity

Richard W. Jackson, Hui Tang, James A. Scobie, Oliver J. Pountney, Carl M. Sangan, J. Michael Owen, Gary D. Lock
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2022, 144(4): 041017.
Paper No: GTP-21-1401
https://doi.org/10.1115/1.4053390
Published Online: February 17, 2022
View Articletitled, Unsteady Pressure Measurements in a Heated Rotating Cavity
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Topics: Cavities, Disks, Pressure, Pressure measurement, Vortices, Flow (Dynamics), Compressors, Cavity flows, Buoyancy, Spectra (Spectroscopy)
Journal Articles

Influence of Flow Coefficient on Ingress Through Turbine Rim Seals

Dimitrios Graikos, Mauro Carnevale, Carl M. Sangan, Gary D. Lock, James A. Scobie
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2021, 143(11): 111010.
Paper No: GTP-21-1286
https://doi.org/10.1115/1.4051912
Published Online: September 27, 2021
View Articletitled, Influence of Flow Coefficient on Ingress Through Turbine Rim Seals
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Topics: Annulus, Blades, Flow (Dynamics), Rotors, Wheels, Pressure, Sealing (Process), Turbines, Disks
Journal Articles

Analysis of Shroud and Disk Heat Transfer in Aero-Engine Compressor Rotors

Richard W. Jackson, Hui Tang, James A. Scobie, Oliver J. Pountney, Carl M. Sangan, J. Michael Owen, Gary D. Lock
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2021, 143(9): 091005.
Paper No: GTP-20-1327
https://doi.org/10.1115/1.4050631
Published Online: April 29, 2021
View Articletitled, Analysis of Shroud and Disk Heat Transfer in Aero-Engine Compressor Rotors
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Topics: Cavities, Disks, Flow (Dynamics), Heat, Heat transfer, Temperature, Compressors, Heat flux
Journal Articles

Design and Testing of a Rig to Investigate Buoyancy-Induced Heat Transfer in Aero-Engine Compressor Rotors

Dario Luberti, Marios Patinios, Richard W. Jackson, Hui Tang, Oliver J. Pountney, James A. Scobie, Carl M. Sangan, J. Michael Owen, Gary D. Lock
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2021, 143(4): 041030.
Paper No: GTP-20-1420
https://doi.org/10.1115/1.4048601
Published Online: March 15, 2021
View Articletitled, Design and Testing of a Rig to Investigate Buoyancy-Induced Heat Transfer in Aero-Engine Compressor Rotors
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Topics: Buoyancy, Cavities, Compressors, Design, Disks, Heat transfer, Instrumentation, Temperature, Thermocouples, Aircraft engines
Journal Articles

Measurement and Analysis of Buoyancy-Induced Heat Transfer in Aero-Engine Compressor Rotors

Richard W. Jackson, Dario Luberti, Hui Tang, Oliver J. Pountney, James A. Scobie, Carl M. Sangan, J. Michael Owen, Gary D. Lock
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2021, 143(6): 061004.
Paper No: GTP-20-1440
https://doi.org/10.1115/1.4049100
Published Online: March 15, 2021
View Articletitled, Measurement and Analysis of Buoyancy-Induced Heat Transfer in Aero-Engine Compressor Rotors
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Topics: Buoyancy, Cavities, Compressors, Disks, Temperature, Heat transfer, Flow (Dynamics), Aircraft engines
Journal Articles

Influence of Temperature Distribution on Radial Growth of Compressor Disks

Dario Luberti, Hui Tang, James A. Scobie, Oliver J. Pountney, J. Michael Owen, Gary D. Lock
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2020, 142(7): 071004.
Paper No: GTP-19-1728
https://doi.org/10.1115/1.4046704
Published Online: June 30, 2020
View Articletitled, Influence of Temperature Distribution on Radial Growth of Compressor Disks
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Topics: Buoyancy, Compressors, Disks, Finite element analysis, Stress, Temperature, Temperature distribution, Transients (Dynamics), Pressure
Journal Articles

Flow Instabilities in Gas Turbine Chute Seals

Joshua T. M. Horwood, Fabian P. Hualca, Mike Wilson, James A. Scobie, Carl M. Sangan, Gary D. Lock, Johan Dahlqvist, Jens Fridh
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2020, 142(2): 021019.
Paper No: GTP-19-1407
https://doi.org/10.1115/1.4045148
Published Online: January 22, 2020
View Articletitled, Flow Instabilities in Gas Turbine Chute Seals
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Topics: Annulus, Blades, Computation, Flow (Dynamics), Pressure, Sealing (Process), Simulation, Stators, Wheels, Rotors
Journal Articles

The Effect of Vanes and Blades on Ingress in Gas Turbines

Fabian P. Hualca, Joshua T. M. Horwood, Carl M. Sangan, Gary D. Lock, James A. Scobie
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2020, 142(2): 021020.
Paper No: GTP-19-1408
https://doi.org/10.1115/1.4045149
Published Online: January 22, 2020
View Articletitled, The Effect of Vanes and Blades on Ingress in Gas Turbines
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Topics: Annulus, Blades, Disks, Pressure, Rotors, Sealing (Process), Wheels, Flow (Dynamics), Pressure measurement
Journal Articles

An Advanced Single-Stage Turbine Facility for Investigating Nonaxisymmetric Contoured Endwalls in the Presence of Purge Flow

Robin R. Jones, Oliver J. Pountney, Bjorn L. Cleton, Liam E. Wood, B. Deneys J. Schreiner, A. J. Carvalho Figueiredo, James A. Scobie, David J. Cleaver, Gary D. Lock, Carl M. Sangan
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2019, 141(12): 121008.
Paper No: GTP-19-1552
https://doi.org/10.1115/1.4045087
Published Online: November 11, 2019
View Articletitled, An Advanced Single-Stage Turbine Facility for Investigating Nonaxisymmetric Contoured Endwalls in the Presence of Purge Flow
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Topics: Flow (Dynamics), Stators, Wheels, Turbines, Pressure, Design, Rotors
Journal Articles

Experimental and Computational Investigation of Flow Instabilities in Turbine Rim Seals

Joshua T. M. Horwood, Fabian P. Hualca, James A. Scobie, Michael Wilson, Carl M. Sangan, Gary D. Lock
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011028.
Paper No: GTP-18-1415
https://doi.org/10.1115/1.4041115
Published Online: October 17, 2018
View Articletitled, Experimental and Computational Investigation of Flow Instabilities in Turbine Rim Seals
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Topics: Annulus, Blades, Computation, Disks, Flow (Dynamics), Sealing (Process), Turbines, Wheels, Pressure, Stators
Journal Articles

Volumetric Velocimetry Measurements of Film Cooling Jets

Artur Joao Carvalho Figueiredo, Robin Jones, Oliver J. Pountney, James A. Scobie, Gary D. Lock, Carl M. Sangan, David J. Cleaver
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2019, 141(3): 031021.
Paper No: GTP-18-1453
https://doi.org/10.1115/1.4041206
Published Online: October 17, 2018
View Articletitled, Volumetric Velocimetry Measurements of Film Cooling Jets
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Topics: Film cooling, Flow (Dynamics), Kidney, Momentum, Vortices, Particulate matter, Jets, Boundary layers
Journal Articles

Influence of Leakage Flows on Hot Gas Ingress

Marios Patinios, Irvin L. Ong, James A. Scobie, Gary D. Lock, Carl M. Sangan
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2019, 141(2): 021010.
Paper No: GTP-18-1403
https://doi.org/10.1115/1.4040846
Published Online: September 26, 2018
View Articletitled, Influence of Leakage Flows on Hot Gas Ingress
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Topics: Flow (Dynamics), Leakage flows, Stators, Wheels, Pressure, Rotors
Journal Articles

Model of Effect of Hot Gas Ingress on Temperatures of Turbine Disks

J. Michael Owen, Hui Tang, Gary D. Lock
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 012501.
Paper No: GTP-18-1225
https://doi.org/10.1115/1.4040680
Published Online: August 31, 2018
View Articletitled, Model of Effect of Hot Gas Ingress on Temperatures of Turbine Disks
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Topics: Flow (Dynamics), Friction, Rotors, Stators, Temperature, Wheels, Heating, Boundary layers