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Theo G. Keith
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Proceedings Papers

Application of Time-Shifted Boundary Conditions to a 3D Euler/Navier-Stokes Aeroelastic Code

R. Srivastava, Milind A. Bakhle, Theo G. Keith, Jr., G. L. Stefko
Proc. ASME. GT1998, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, V005T14A009, June 2–5, 1998
Publisher: American Society of Mechanical Engineers
Paper No: 98-GT-042
https://doi.org/10.1115/98-GT-042
View Paper titled, Application of Time-Shifted Boundary Conditions to a 3D Euler/Navier-Stokes Aeroelastic Code
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Topics: Boundary-value problems, Blades, Computers, Flat plates, Inviscid flow
Proceedings Papers

Phase-Lagged Boundary Condition Methods for Aeroelastic Analysis of Turbomachines: A Comparative Study

R. Srivastava, Milind A. Bakhle, Theo G. Keith, Jr., G. L. Stefko
Proc. ASME. GT1999, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General, V004T03A005, June 7–10, 1999
Publisher: American Society of Mechanical Engineers
Paper No: 99-GT-019
https://doi.org/10.1115/99-GT-019
View Paper titled, Phase-Lagged Boundary Condition Methods for Aeroelastic Analysis of Turbomachines: A Comparative Study
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Topics: Boundary-value problems, Turbomachinery, Inflow, Blades, Computers, Flat plates, Shock (Mechanics)
Proceedings Papers

Enhancement of Convective Heat Transfer in Internal Viscous Flows by Inserting Motionless Mixers

Ramin K. Rahmani, Anahita Ayasoufi, Theo G. Keith
Proc. ASME. HT2009, Volume 2: Theory and Fundamental Research; Aerospace Heat Transfer; Gas Turbine Heat Transfer; Computational Heat Transfer, 653-665, July 19–23, 2009
Publisher: American Society of Mechanical Engineers
Paper No: HT2009-88103
https://doi.org/10.1115/HT2009-88103
View Paper titled, Enhancement of Convective Heat Transfer in Internal Viscous Flows by Inserting Motionless Mixers
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Topics: Convection, Flow (Dynamics), Heat exchangers, Shells, Temperature, Fluids, Heat transfer, Computational fluid dynamics, Cooling, Heating
Proceedings Papers

Application of the Lobatto Quadrature Within Probabilistic Thermal Mixed EHL

Laurentiu Moraru, Theo G. Keith, Jr.
Proc. ASME. IJTC2009, ASME/STLE 2009 International Joint Tribology Conference, 155-157, October 19–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2009-15101
https://doi.org/10.1115/IJTC2009-15101
View Paper titled, Application of the Lobatto Quadrature Within Probabilistic Thermal Mixed EHL
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Topics: Algorithms, Computation, Engineers, Fluids, Lubrication, Polynomials, Stress, Surface roughness, Temperature
Proceedings Papers

Large-Eddy Turbulent Flow Simulation of a KOMAX Static Mixer

Ramin K. Rahmani, Theo G. Keith, Anahita Ayasoufi
Proc. ASME. FEDSM2008, Volume 1: Symposia, Parts A and B, 541-550, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2008-55028
https://doi.org/10.1115/FEDSM2008-55028
View Paper titled, Large-Eddy Turbulent Flow Simulation of a KOMAX Static Mixer
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Topics: Eddies (Fluid dynamics), Simulation, Turbulence
Proceedings Papers

An Approximate Analytical Solution for the Elasto-Plastic Contact of the Non-Isotropic Rough Surfaces

Laurentiu Moraru, Theo G. Keith, Jr.
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 589-591, October 22–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2007-44360
https://doi.org/10.1115/IJTC2007-44360
View Paper titled, An Approximate Analytical Solution for the Elasto-Plastic Contact of the Non-Isotropic Rough Surfaces
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Topics: Surface roughness, Contact mechanics, Density, Probability, Stress, Computation, Plasticity
Proceedings Papers

Temperature Distribution of a Wave Journal Bearing: Comparison With Test Data

Nicoleta M. Ene, Florin Dimofte, Theo G. Keith, Jr., Robert F. Handschuh
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 285-287, October 22–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2007-44280
https://doi.org/10.1115/IJTC2007-44280
View Paper titled, Temperature Distribution of a Wave Journal Bearing: Comparison With Test Data
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Topics: Journal bearings, Temperature distribution, Waves, Heat transfer, Three-dimensional models
Proceedings Papers

New Rig to Test Journal Oil Lubricated Wave Bearings

Florin Dimofte, Nicoleta M. Ene, Robert F. Handschuh, Theo G. Keith, Jr.
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 293-295, October 22–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2007-44293
https://doi.org/10.1115/IJTC2007-44293
View Paper titled, New Rig to Test Journal Oil Lubricated Wave Bearings
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Topics: Bearings, Waves, Stress, Temperature, Fluid films, Flow (Dynamics), NASA, Probes, Vibration
Journal Articles

Application of the Amplitude Reduction Technique Within Probabilistic Rough EHL Models

Laurentiu Moraru, Theo. G Keith, Jr.
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. April 2009, 131(2): 021703.
https://doi.org/10.1115/1.2961919
Published Online: March 9, 2009
View Article titled, Application of the Amplitude Reduction Technique Within Probabilistic Rough EHL Models
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Topics: Deformation, Surface roughness, Fluids, Pressure, Stress, Algorithms
Proceedings Papers

Large-Eddy Turbulent Flow Simulation of an Industrial Helical Static Mixer

Ramin K. Rahmani, Theo G. Keith, Anahita Ayasoufi
Proc. ASME. HT-FED2004, Volume 4, 775-784, July 11–15, 2004
Publisher: American Society of Mechanical Engineers
Paper No: HT-FED2004-56021
https://doi.org/10.1115/HT-FED2004-56021
View Paper titled, Large-Eddy Turbulent Flow Simulation of an Industrial Helical Static Mixer
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Topics: Eddies (Fluid dynamics), Simulation, Turbulence
Proceedings Papers

Stefan Number-Insensitive Numerical Simulation of the Enthalpy Method for Stefan Problems Using the Space-Time Conservation Element and Solution Element Method

Anahita Ayasoufi, Theo G. Keith, Ramin K. Rahmani
Proc. ASME. HT-FED2004, Volume 2, Parts A and B, 69-77, July 11–15, 2004
Publisher: American Society of Mechanical Engineers
Paper No: HT-FED2004-56023
https://doi.org/10.1115/HT-FED2004-56023
View Paper titled, Stefan Number-Insensitive Numerical Simulation of the Enthalpy Method for Stefan Problems Using the Space-Time Conservation Element and Solution Element Method
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Topics: Computer simulation, Enthalpy, Spacetime, Errors, Latent heat
Proceedings Papers

Numerical Simulation and Mixing Study of Non-Newtonian Fluids in an Industrial Helical Static Mixer

Ramin K. Rahmani, Theo G. Keith, Anahita Ayasoufi
Proc. ASME. HT-FED2004, Volume 2, Parts A and B, 59-67, July 11–15, 2004
Publisher: American Society of Mechanical Engineers
Paper No: HT-FED2004-56020
https://doi.org/10.1115/HT-FED2004-56020
View Paper titled, Numerical Simulation and Mixing Study of Non-Newtonian Fluids in an Industrial Helical Static Mixer
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Topics: Computer simulation, Non-Newtonian fluids
Proceedings Papers

Three-Dimensional Numerical Simulation and Performance Study of an Industrial Helical Static Mixer

Ramin K. Rahmani, Theo G. Keith, Anahita Ayasoufi
Proc. ASME. FEDSM2003, Volume 2: Symposia, Parts A, B, and C, 1199-1204, July 6–10, 2003
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2003-45292
https://doi.org/10.1115/FEDSM2003-45292
View Paper titled, Three-Dimensional Numerical Simulation and Performance Study of an Industrial Helical Static Mixer
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Topics: Chemical reactions, Computational fluid dynamics, Computer simulation, Engineering simulation, Failure, Flow (Dynamics), Fluids, Heat, Laminar flow, Mass transfer
Proceedings Papers

Calculation and Correlation of the Unsteady Flowfield in a High Pressure Turbine

Milind A. Bakhle, Jong S. Liu, Josef Panovsky, Theo G. Keith, Jr., Oral Mehmed
Proc. ASME. GT2002, Volume 4: Turbo Expo 2002, Parts A and B, 861-874, June 3–6, 2002
Publisher: American Society of Mechanical Engineers
Paper No: GT2002-30322
https://doi.org/10.1115/GT2002-30322
View Paper titled, Calculation and Correlation of the Unsteady Flowfield in a High Pressure Turbine
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Topics: High pressure (Physics), Turbines, Blades, Computational fluid dynamics, Vibration, Aerodynamics, Engines, Excitation, Fracture (Materials), High cycle fatigue
Proceedings Papers

Application of the Conservation Element and Solution Element Method in Numerical Modeling of Three-Dimensional Heat Conduction With Melting and/or Freezing

Anahita Ayasoufi, Theo G. Keith
Proc. ASME. HT2003, Heat Transfer: Volume 2, 355-365, July 21–23, 2003
Publisher: American Society of Mechanical Engineers
Paper No: HT2003-47194
https://doi.org/10.1115/HT2003-47194
View Paper titled, Application of the Conservation Element and Solution Element Method in Numerical Modeling of Three-Dimensional Heat Conduction With Melting and/or Freezing
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Topics: Computer simulation, Freezing, Heat conduction, Melting, Fluid mechanics, Numerical analysis
Proceedings Papers

Shock Induced Flutter of Turbomachinery Blade Row

R. Srivastava, Theo G. Keith, Jr.
Proc. ASME. GT2004, Volume 6: Turbo Expo 2004, 487-496, June 14–17, 2004
Publisher: American Society of Mechanical Engineers
Paper No: GT2004-53479
https://doi.org/10.1115/GT2004-53479
View Paper titled, Shock Induced Flutter of Turbomachinery Blade Row
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Topics: Blades, Flutter (Aerodynamics), Shock (Mechanics), Turbomachinery, Shock waves, Oscillating frequencies, Stability, Vibration, Algebra, Cascades (Fluid dynamics)
Proceedings Papers

Numerical Investigation of Choked Flow in Padded Finger Seals

Sorin Cioc, David P. Fleming, Theo G. Keith, Jr., Carmen Cioc
Proc. ASME. WTC2005, World Tribology Congress III, Volume 2, 263-264, September 12–16, 2005
Publisher: American Society of Mechanical Engineers
Paper No: WTC2005-64006
https://doi.org/10.1115/WTC2005-64006
View Paper titled, Numerical Investigation of Choked Flow in Padded Finger Seals
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Topics: Flow (Dynamics), Approximation, Design, High pressure (Physics), Modeling, Shock (Mechanics), Spacetime, Thin films
Proceedings Papers

The Robust Stability of a Wave Bearing

Nicoleta M. Ene, Florin Dimofte, Theo G. Keith, Jr., Robert F. Handschuh
Proc. ASME. WTC2005, World Tribology Congress III, Volume 2, 161-162, September 12–16, 2005
Publisher: American Society of Mechanical Engineers
Paper No: WTC2005-64084
https://doi.org/10.1115/WTC2005-64084
View Paper titled, The Robust Stability of a Wave Bearing
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Topics: Bearings, Stability, Waves, Journal bearings, Linear systems, Theorems (Mathematics), Uncertainty
Proceedings Papers

An Analysis of Cavitated Wave Journal Bearings

Nicoleta M. Ene, Florin Dimofte, Theo G. Keith, Jr.
Proc. ASME. IJTC2006, Part A: Tribomaterials; Lubricants and Additives; Elastohydrodynamic Lubrication; Hydrodynamic Lubrication and Fluid Film Bearings; Rolling Element Bearings; Engine Tribology; Machine Components Tribology; Contact Mechanics, 455-462, October 23–25, 2006
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2006-12211
https://doi.org/10.1115/IJTC2006-12211
View Paper titled, An Analysis of Cavitated Wave Journal Bearings
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Topics: Bearings, Cavitation, Journal bearings, Waves
Proceedings Papers

Application of the Amplitude Reduction Technique Within Probabilistic Rough EHL Models

Laurentiu Moraru, Theo G. Keith, Jr.
Proc. ASME. IJTC2006, Part A: Tribomaterials; Lubricants and Additives; Elastohydrodynamic Lubrication; Hydrodynamic Lubrication and Fluid Film Bearings; Rolling Element Bearings; Engine Tribology; Machine Components Tribology; Contact Mechanics, 223-234, October 23–25, 2006
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2006-12218
https://doi.org/10.1115/IJTC2006-12218
View Paper titled, Application of the Amplitude Reduction Technique Within Probabilistic Rough EHL Models
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Topics: Surface roughness, Deformation, Fluids, Computation, Algorithms, Engineers, Fast Fourier transforms, Stress, Waves