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Journal Articles

Quasi-Static Thermal Modeling of Multiscale Sliding Contact for Unlubricated Brush Seal Materials

Qingfeng Xia, David R. H. Gillespie, Andrew K. Owen, Gervas Franceschini

J. Eng. Gas Turbines Power. July 2019, 141(7): 071016.

Paper No: GTP-19-1004

DOI: https://doi.org/10.1115/1.4042722

Published Online: February 18, 2019

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Topics: Disks, Heat, Rotating disks, Temperature, Thermal conductivity, Modeling, Heating, Heat transfer, Anisotropy, Boundary-value problems

Proceedings Papers

Quasi-Static Thermal Modelling of Multi-Scale Sliding Contact for Unlubricated Brush Seal Materials

Qingfeng Xia, David Gillespie, Andrew Owen, Gervas Franceschini

Proc. ASME. GT2018, Volume 5B: Heat Transfer, V05BT18A002, June 11–15, 2018

Paper No: GT2018-75920

DOI: https://doi.org/10.1115/GT2018-75920

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Topics: Modeling, Sealants, Disks, Heat, Temperature, Finite element methods, Anisotropy, Thermal conductivity, Wear, Boundary-value problems

Journal Articles

Analytical Modeling and Experimental Validation of Heating at the Leaf Seal/Rotor Interface

Michael J. Pekris, Gervas Franceschini, Andrew K. Owen, Terry V. Jones, David R. H. Gillespie

J. Eng. Gas Turbines Power. April 2017, 139(4): 042504.

Paper No: GTP-16-1367

DOI: https://doi.org/10.1115/1.4034702

Published Online: November 2, 2016

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Topics: Flow (Dynamics), Heat transfer, Metals, Rotors, Temperature, Heat, Heat transfer coefficients, Modeling, Dimensional analysis, Test facilities

Journal Articles

Experimental Characterization of Rotor Convective Heat Transfer Coefficients in the Vicinity of a Leaf Seal

Juan-Diego Pelegrin-Garcia, David R. H. Gillespie, Michael J. Pekris, Gervas Franceschini, Leonid Ganin

J. Eng. Gas Turbines Power. March 2017, 139(3): 031901.

Paper No: GTP-16-1285

DOI: https://doi.org/10.1115/1.4034519

Published Online: September 27, 2016

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Topics: Computational fluid dynamics, Convection, Flow (Dynamics), Heat transfer, Pressure, Rotors, Temperature, Thermocouples, Heat flux, Heat

Proceedings Papers

Analytical Modeling and Experimental Validation of Heating at the Leaf Seal/Rotor Interface

Michael J. Pekris, Gervas Franceschini, Andrew K. Owen, Terry V. Jones, David R. H. Gillespie

Proc. ASME. GT2016, Volume 5A: Heat Transfer, V05AT15A026, June 13–17, 2016

Paper No: GT2016-57577

DOI: https://doi.org/10.1115/GT2016-57577

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Topics: Heating, Modeling, Rotors, Flow (Dynamics), Engines, Temperature, Cavities, Leakage, Sealing (Process), Stiffness

Proceedings Papers

Experimental Characterization of Rotor Convective Heat Transfer Coefficients in the Vicinity of a Leaf Seal

Juan D. Pelegrin-Garcia, David R. H. Gillespie, Michael J. Pekris, Leonid Ganin, Gervas Franceschini

Proc. ASME. GT2016, Volume 5A: Heat Transfer, V05AT15A027, June 13–17, 2016

Paper No: GT2016-57603

DOI: https://doi.org/10.1115/GT2016-57603

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Topics: Convection, Experimental characterization, Rotors, Engines, Flow (Dynamics), Pressure, Temperature, Computational fluid dynamics, Design, Friction

Journal Articles

High-Speed Characterization of a Prototype Leaf Seal on an Advanced Seal Test Facility

Michael J. Pekris, Adele Nasti, Ingo H. J. Jahn, Gervas Franceschini

J. Eng. Gas Turbines Power. August 2016, 138(8): 082503.

Paper No: GTP-15-1561

DOI: https://doi.org/10.1115/1.4032422

Published Online: March 15, 2016

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Topics: Clearances (Engineering), Engineering prototypes, Leakage, Pressure, Rotors, Temperature, Test facilities, Torque, Uncertainty, Flow (Dynamics)

Journal Articles

Experimental Investigation of a Leaf Seal Prototype at Engine-Representative Speeds and Pressures

Michael J. Pekris, Gervas Franceschini, Ingo H. J. Jahn, David R. H. Gillespie

J. Eng. Gas Turbines Power. July 2016, 138(7): 072502.

Paper No: GTP-15-1449

DOI: https://doi.org/10.1115/1.4031875

Published Online: December 4, 2015

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Topics: Clearances (Engineering), Engineering prototypes, Engines, Pressure, Rotors, Torque, Test facilities, Geometry, Leakage, Flow (Dynamics)

Journal Articles

Improved Understanding of Stiffness in Leaf-Type Filament Seals

Ingo H. J. Jahn, Gervas Franceschini, Andrew K. Owen, Terry V. Jones, David R. H. Gillespie

J. Turbomach. January 2016, 138(1): 011004.

Paper No: TURBO-14-1309

DOI: https://doi.org/10.1115/1.4031579

Published Online: October 13, 2015

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Topics: Engineering prototypes, Pressure, Rotors, Stiffness, Torque, Flow (Dynamics)

Proceedings Papers

High Speed Characterization of a Prototype Leaf Seal on an Advanced Seal Test Facility

Michael J. Pekris, Adele Nasti, Ingo H. J. Jahn, Gervas Franceschini

Proc. ASME. GT2015, Volume 5C: Heat Transfer, V05CT15A023, June 15–19, 2015

Paper No: GT2015-43465

DOI: https://doi.org/10.1115/GT2015-43465

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Topics: Engineering prototypes, Test facilities, Engines, Leakage, Rotors, ASME Standards, Flight, Measurement uncertainty, Pressure, Torque

Proceedings Papers

Experimental Investigation of a Leaf Seal Prototype at Engine-Representative Speeds and Pressures

Michael J. Pekris, Gervas Franceschini, Ingo H. J. Jahn, David R. H. Gillespie

Proc. ASME. GT2015, Volume 5C: Heat Transfer, V05CT15A018, June 15–19, 2015

Paper No: GT2015-43231

DOI: https://doi.org/10.1115/GT2015-43231

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Topics: Engineering prototypes, Engines, Leakage, Stiffness, Torque, Emissions, Fuel consumption, Geometry, Jet engines, Pressure

Journal Articles

An Investigation of Flow, Mechanical, and Thermal Performance of Conventional and Pressure-Balanced Brush Seals

Michael J. Pekris, Gervas Franceschini, David R. H. Gillespie

J. Eng. Gas Turbines Power. June 2014, 136(6): 062502.

Paper No: GTP-12-1364

DOI: https://doi.org/10.1115/1.4026243

Published Online: January 24, 2014

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Topics: Cavities, Clearances (Engineering), Flow (Dynamics), Pressure, Rotors, Temperature, Torque, Leakage

Proceedings Papers

The Development of a Large Radial Movement Brush Seal

Gervas Franceschini, Terry V. Jones, David R. H. Gillespie

Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 2119-2129, June 11–15, 2012

Paper No: GT2012-68891

DOI: https://doi.org/10.1115/GT2012-68891

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Topics: Deflection, Engines, Flow measurement, Geometry, Pressure, Rotors, Stiffness, Stress, Torque, Wear

Proceedings Papers

Improved Understanding of Negative Stiffness in Filament Seals

Gervas Franceschini, Ingo H. J. Jahn, Andrew K. Owen, Terry V. Jones, David R. H. Gillespie

Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 2131-2139, June 11–15, 2012

Paper No: GT2012-68899

DOI: https://doi.org/10.1115/GT2012-68899

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Topics: Stiffness, Rotors, Displacement, Design, Flow (Dynamics), Fluids, Gas turbines, Geometry, Inertia (Mechanics), Modeling

Proceedings Papers

An Investigation of Flow, Mechanical and Thermal Performance of Conventional and Pressure-Balanced Brush Seals

Michael J. Pekris, Gervas Franceschini, David R. H. Gillespie

Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 2141-2153, June 11–15, 2012

Paper No: GT2012-68901

DOI: https://doi.org/10.1115/GT2012-68901

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Topics: Flow (Dynamics), Pressure, Leakage, Design, Engines, Rotors, Torque, Wear, Friction, Fuel consumption

Proceedings Papers

Negative Stiffness in Gas Turbine Leaf Seals

Ingo H. J. Jahn, Andrew K. Owen, Gervas Franceschini, David R. H. Gillespie

Proc. ASME. GT2011, Volume 5: Heat Transfer, Parts A and B, 993-998, June 6–10, 2011

Paper No: GT2011-46483

DOI: https://doi.org/10.1115/GT2011-46483

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Topics: Gas turbines, Stiffness, Rotors, Displacement, Pressure, Engineering prototypes, Engines, Flow (Dynamics)

Proceedings Papers

Effect of Geometric Changes in an Idealised Contacting Brush Seal Bristle Pack on Typical Key Performance Measures

Michael J. Pekris, Gervas Franceschini, David R. H. Gillespie

Proc. ASME. GT2011, Volume 5: Heat Transfer, Parts A and B, 999-1010, June 6–10, 2011

Paper No: GT2011-46492

DOI: https://doi.org/10.1115/GT2011-46492

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Topics: Air flow, Computational fluid dynamics, Deformation, Engineering standards, Experimental design, Flow (Dynamics), Fuel consumption, Gas turbines, Geometry, Leakage

Journal Articles

Improved Understanding of Blow-Down in Filament Seals

Gervas Franceschini, Terry V. Jones, David R. H. Gillespie

J. Turbomach. October 2010, 132(4): 041004.

DOI: https://doi.org/10.1115/1.3213552

Published Online: April 26, 2010

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Topics: Computer simulation, Flow (Dynamics), Pressure, Strips, Rotors, Momentum, Wind tunnels

Proceedings Papers

Improved Understanding of Blow-Down in Filament Seals

Gervas Franceschini, Terry V. Jones, David R. H. Gillespie

Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 1635-1646, June 9–13, 2008

Paper No: GT2008-51197

DOI: https://doi.org/10.1115/GT2008-51197

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Topics: Flow (Dynamics), Gas turbines, Pressure, Rotors

Proceedings Papers

Experimental Characterisation of the Stiffness and Leakage of a Prototype Leaf Seal for Turbine Applications

Ingo H. J. Jahn, Andrew K. Owen, Gervas Franceschini, David Gillespie

Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 1657-1666, June 9–13, 2008

Paper No: GT2008-51206

DOI: https://doi.org/10.1115/GT2008-51206

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Topics: Engineering prototypes, Experimental characterization, Leakage, Stiffness, Turbines, Clearances (Engineering), Damping, Design, Flow (Dynamics), Geometry

Journal citation

NARROW

Quasi-Static Thermal Modeling of Multiscale Sliding Contact for Unlubricated Brush Seal Materials

Quasi-Static Thermal Modelling of Multi-Scale Sliding Contact for Unlubricated Brush Seal Materials

Analytical Modeling and Experimental Validation of Heating at the Leaf Seal/Rotor Interface

Experimental Characterization of Rotor Convective Heat Transfer Coefficients in the Vicinity of a Leaf Seal

Analytical Modeling and Experimental Validation of Heating at the Leaf Seal/Rotor Interface

Experimental Characterization of Rotor Convective Heat Transfer Coefficients in the Vicinity of a Leaf Seal

High-Speed Characterization of a Prototype Leaf Seal on an Advanced Seal Test Facility

Experimental Investigation of a Leaf Seal Prototype at Engine-Representative Speeds and Pressures

Improved Understanding of Stiffness in Leaf-Type Filament Seals

High Speed Characterization of a Prototype Leaf Seal on an Advanced Seal Test Facility

Experimental Investigation of a Leaf Seal Prototype at Engine-Representative Speeds and Pressures

An Investigation of Flow, Mechanical, and Thermal Performance of Conventional and Pressure-Balanced Brush Seals

The Development of a Large Radial Movement Brush Seal

Improved Understanding of Negative Stiffness in Filament Seals

An Investigation of Flow, Mechanical and Thermal Performance of Conventional and Pressure-Balanced Brush Seals

Negative Stiffness in Gas Turbine Leaf Seals

Effect of Geometric Changes in an Idealised Contacting Brush Seal Bristle Pack on Typical Key Performance Measures

Improved Understanding of Blow-Down in Filament Seals

Improved Understanding of Blow-Down in Filament Seals

Experimental Characterisation of the Stiffness and Leakage of a Prototype Leaf Seal for Turbine Applications

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