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Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT26A008, June 13–17, 2022

Paper No: GT2022-82200

DOI: https://doi.org/10.1115/GT2022-82200

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Topics: Fluids, Rotors, Stability, Test facilities, Vibration, Damping, Bearings, Dampers, Excitation, Gas turbines

Proceedings Papers

Experimental Force Coefficients for a Fully-Partitioned Pocket Damper Seal and Comparison to Other Two Seal Types

Adolfo Delgado, Luis San Andrés, Jing Yang, Jonathan Thiele

Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT22A020, June 13–17, 2022

Paper No: GT2022-83164

DOI: https://doi.org/10.1115/GT2022-83164

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Topics: Dampers, Leakage, Stiffness, Compressors, Damping, Blades, Pressure, Rotors, Computational fluid dynamics, Databases

Proceedings Papers

Optically Observed Turbulence In Thrust Collars at Low Critical Reynolds Number Including Numerical Predictions

Thomas Kerr, Adolfo Delgado

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A026, June 7–11, 2021

Paper No: GT2021-60360

DOI: https://doi.org/10.1115/GT2021-60360

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Topics: Reynolds number, Thrust, Turbulence, Stress, Computational fluid dynamics, Bearings, Flow (Dynamics), Modeling, Particle spin, Rotation

Journal Articles

Additively Manufactured Compliant Hybrid Gas Thrust Bearing for Supercritical Carbon Dioxide Turbomachinery: Experimental Evaluation and Fluid–Structure Model Predictions

Bugra Ertas, Keith Gary, Adolfo Delgado

J. Eng. Gas Turbines Power. August 2021, 143(8): 081023.

Paper No: GTP-20-1671

DOI: https://doi.org/10.1115/1.4050864

Published Online: May 7, 2021

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Topics: Bearings, Fluids, Stress, Thrust, Thrust bearings, Turbomachinery, Pressure, Clearances (Engineering), Flow (Dynamics), Supercritical carbon dioxide

Proceedings Papers

Additively Manufactured Compliant Hybrid Gas Thrust Bearing for sCO 2 Turbomachinery: Experimental Evaluation and Fluid-Structure Model Predictions

Bugra Ertas, Keith Gary, Adolfo Delgado

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A018, September 21–25, 2020

Paper No: GT2020-14964

DOI: https://doi.org/10.1115/GT2020-14964

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Topics: Additive manufacturing, Fluids, Thrust bearings, Turbomachinery, Stress, Bearings, Pressure, Hydrostatics, Thrust, Deflection

Proceedings Papers

Novel Approach for Optical Characterization of Thrust Collar Lubricated Area: Experimental and Numerical Results

Thomas Kerr, Adolfo Delgado

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A025, September 21–25, 2020

Paper No: GT2020-15467

DOI: https://doi.org/10.1115/GT2020-15467

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Topics: Thrust, Cavitation, Stress, Turbulence, Computational fluid dynamics, Modeling, Pressure, Algorithms, Bearings, Compressors

Proceedings Papers

A General-Purpose Test Facility for Evaluating Gas Lubricated Thrust Bearings

Keith Gary, Bugra Ertas, Adolfo Delgado

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A027, September 21–25, 2020

Paper No: GT2020-15520

DOI: https://doi.org/10.1115/GT2020-15520

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Topics: Test facilities, Thrust bearings, Bearings, Fluids, Design, Gas turbines, Hydrostatics, Lubricants, Stress, Testing

Proceedings Papers

A Novel Controlled-Motion Test Rig to Evaluate Effect of Synchronous and Subsynchronous Lateral Vibration on Reliability and Performance of Mechanical Seals in Pumps

Clay S. Norrbin, Adolfo Delgado

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A029, September 21–25, 2020

Paper No: GT2020-15749

DOI: https://doi.org/10.1115/GT2020-15749

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Topics: Pumps, Reliability, Vibration, Rotors, Whirls, Flow (Dynamics), Leakage, Mineral oil, Temperature, Clearances (Engineering)

Journal Articles

Novel Approach for Optical Characterization of Thrust Collar Lubricated Area: Experimental and Numerical Results

Thomas Kerr, Adolfo Delgado

J. Eng. Gas Turbines Power. January 2021, 143(1): 011011.

Paper No: GTP-20-1435

DOI: https://doi.org/10.1115/1.4049013

Published Online: January 4, 2021

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Topics: Cavitation, Computational fluid dynamics, Pressure, Stress, Thrust, Finite element analysis, Turbulence, Modeling, Algorithms, Bearings

Journal Articles

Effect of Leakage Flow Path Wear on Axial Thrust in Downhole Electrical Submersible Pump Unit

Abhay Patil, Marie Kasprzyk, Adolfo Delgado, Gerald Morrison

J. Fluids Eng. May 2020, 142(5): 051202.

Paper No: FE-19-1078

DOI: https://doi.org/10.1115/1.4045571

Published Online: February 3, 2020

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Topics: Pumps, Thrust, Wear, Flow (Dynamics), Erosion, Impellers, Leakage flows, Pressure

Proceedings Papers

Predictive Model for Two-Phase Flow Performance of Mixed Flow Pumps

Abhay Patil, Burak Ayyildiz, Sahand Pirouzpanah, Adolfo Delgado, Gerald Morrison

Proc. ASME. AJKFluids2019, Volume 3B: Fluid Applications and Systems, V03BT03A040, July 28–August 1, 2019

Paper No: AJKFluids2019-5486

DOI: https://doi.org/10.1115/AJKFluids2019-5486

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Topics: Flow (Dynamics), Multiphase flow, Pumps, Two-phase flow

Proceedings Papers

Bugra Ertas, Adolfo Delgado

Proc. ASME. GT2018, Volume 7B: Structures and Dynamics, V07BT34A035, June 11–15, 2018

Paper No: GT2018-76308

DOI: https://doi.org/10.1115/GT2018-76308

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Topics: Dampers, Damping, Cavitation, Flow (Dynamics), Gas bearings, Stiffness, Clearances (Engineering), Bearings, Cavities, Density

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Journal citation

NARROW

Experimental Force Coefficients for a Fully-Partitioned Pocket Damper Seal and Comparison to Other Two Seal Types

Stability of a Rotor Partially Filled With Fluid: Test Facility and Experimental Results

Stability of a Rotor Partially-Filled With Fluid: Test Facility and Experimental Results

Experimental Force Coefficients for a Fully-Partitioned Pocket Damper Seal and Comparison to Other Two Seal Types

Optically Observed Turbulence In Thrust Collars at Low Critical Reynolds Number Including Numerical Predictions

Additively Manufactured Compliant Hybrid Gas Thrust Bearing for Supercritical Carbon Dioxide Turbomachinery: Experimental Evaluation and Fluid–Structure Model Predictions

Additively Manufactured Compliant Hybrid Gas Thrust Bearing for sCO 2 Turbomachinery: Experimental Evaluation and Fluid-Structure Model Predictions

Novel Approach for Optical Characterization of Thrust Collar Lubricated Area: Experimental and Numerical Results

A General-Purpose Test Facility for Evaluating Gas Lubricated Thrust Bearings

A Novel Controlled-Motion Test Rig to Evaluate Effect of Synchronous and Subsynchronous Lateral Vibration on Reliability and Performance of Mechanical Seals in Pumps

Novel Approach for Optical Characterization of Thrust Collar Lubricated Area: Experimental and Numerical Results

Effect of Leakage Flow Path Wear on Axial Thrust in Downhole Electrical Submersible Pump Unit

Predictive Model for Two-Phase Flow Performance of Mixed Flow Pumps

Static Stiffness Measurements for a Thrust Collar Used in an Integrally Geared Compressor

Extending Classical Friction Loss Modeling to Predict the Viscous Performance of Pumping Devices

Static and Dynamic Coefficient Measurements for a Thrust Collar Used in an Integrally Geared Compressor

Dynamic Characterization of a Novel Externally Pressurized Compliantly Damped Gas-Lubricated Bearing With Hermetically Sealed Squeeze Film Damper Modules

Hermetically Sealed Squeeze Film Damper for Operation in Oil-Free Environments

Compliant Hybrid Gas Bearing Using Modular Hermetically Sealed Squeeze Film Dampers

Hermetically Sealed Squeeze Film Damper for Operation in Oil-Free Environments

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