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Proceedings Papers

A Stepped Shaft Labyrinth Seal vs. a Pocket Damper Seal: Leakage and Dynamic Force Coefficients Under Wet Gas Operation

José Torres, Luis San Andrés, Jing Yang
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, V08AT22A014, June 13–17, 2022
Paper No: GT2022-82280
https://doi.org/10.1115/GT2022-82280
View Paper titled, A Stepped Shaft Labyrinth Seal vs. a Pocket Damper Seal: Leakage and Dynamic Force Coefficients Under Wet Gas Operation
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Topics: Dampers, Leakage, Clearances (Engineering), Compressors, Damping, Pressure, Two-phase flow, Blades, Computational fluid dynamics, Density
Proceedings Papers

A Comparison of Static and Rotordynamic Characteristics for Three Types of Impeller Front Seals in a Liquid Oxygen Turbopump

Zhihong Jin, Zhigang Li, Jun Li
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, V08AT22A016, June 13–17, 2022
Paper No: GT2022-82556
https://doi.org/10.1115/GT2022-82556
View Paper titled, A Comparison of Static and Rotordynamic Characteristics for Three Types of Impeller Front Seals in a Liquid Oxygen Turbopump
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Topics: Impellers, Oxygen, Leakage, Rotors, Computational fluid dynamics, Dampers, Fluids, Stability, Stators, Stress
Proceedings Papers

Experimental Investigation Into Oil Film Thickness and Behaviour Near an Aero-Engine Bearing

Avick Sinha, David Hann, Kathy Johnson, Michael Walsh
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, V08AT22A009, June 13–17, 2022
Paper No: GT2022-82180
https://doi.org/10.1115/GT2022-82180
View Paper titled, Experimental Investigation Into Oil Film Thickness and Behaviour Near an Aero-Engine Bearing
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Topics: Aircraft engines, Bearings, Film thickness, Flow (Dynamics), Stress, Waves, Computational fluid dynamics, Cooling, Engine design, Flight
Proceedings Papers

A Digital Twin of Compressor Blisk Manufacturing Geometrical Variability for the Aeroelastic Uncertainty Quantification of the Aerodynamic Damping

Marco Gambitta, Bernd Beirow, Sven Schrape
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, V08AT21A021, June 13–17, 2022
Paper No: GT2022-82935
https://doi.org/10.1115/GT2022-82935
View Paper titled, A Digital Twin of Compressor Blisk Manufacturing Geometrical Variability for the Aeroelastic Uncertainty Quantification of the Aerodynamic Damping
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Topics: Compressors, Damping, Digital twin, Manufacturing, Uncertainty quantification, Airfoils, Geometry, Vibration, Aerodynamics, Blades
Proceedings Papers

Circumferentially Grooved Seal Flow Field Analysis Based on Effective Film Thickness to Improve Bulk Flow Models

Nathaniel Gibbons, Cori Watson-Kassa, Christopher Goyne, Minhui He
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, V08AT22A005, June 13–17, 2022
Paper No: GT2022-81010
https://doi.org/10.1115/GT2022-81010
View Paper titled, Circumferentially Grooved Seal Flow Field Analysis Based on Effective Film Thickness to Improve Bulk Flow Models
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Topics: Film thickness, Flow (Dynamics), Computational fluid dynamics, Modeling, Reynolds number, Shear stress, Engineering simulation, Leakage, Physics, Rotors
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
https://doi.org/10.1115/GT2022-83164
View Paper titled, Experimental Force Coefficients for a Fully-Partitioned Pocket Damper Seal and Comparison to Other Two Seal Types
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Topics: Dampers, Leakage, Stiffness, Compressors, Damping, Blades, Pressure, Rotors, Computational fluid dynamics, Databases
Proceedings Papers

Rotordynamic Force Coefficient Prediction of an Unshrouded Radial Inflow Expander and Labyrinth Seal Using Transient Computational Fluid Dynamic Analysis

Chris D. Kulhanek, Hector A. Delgado, Michael P. Marshall, J. Jeffrey Moore, Joseph Lillard, Yunbae Kim
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, V08AT22A021, June 13–17, 2022
Paper No: GT2022-83257
https://doi.org/10.1115/GT2022-83257
View Paper titled, Rotordynamic Force Coefficient Prediction of an Unshrouded Radial Inflow Expander and Labyrinth Seal Using Transient Computational Fluid Dynamic Analysis
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Topics: Computational fluid dynamics, Inflow, Stiffness, Transients (Dynamics)
Proceedings Papers

Application of Machine Learning to Forced Response Predictions of an Industrial Axial Compressor Rotor Blade

Giuseppe Bruni, Senthil Krishnababu, Simon Jackson
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, V08AT21A019, June 13–17, 2022
Paper No: GT2022-82427
https://doi.org/10.1115/GT2022-82427
View Paper titled, Application of Machine Learning to Forced Response Predictions of an Industrial Axial Compressor Rotor Blade
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Topics: Blades, Compressors, Machine learning, Rotors, Design, Artificial neural networks, Computational fluid dynamics, Algorithms, Cycles, Damping
Proceedings Papers

Simulation and Investigation of an Intentionally Mistuned Blisk Rotor in a High Pressure Compressor

Jingjie Yang, Bernd Beirow, Thomas Giersch
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT27A022, June 13–17, 2022
Paper No: GT2022-82576
https://doi.org/10.1115/GT2022-82576
View Paper titled, Simulation and Investigation of an Intentionally Mistuned Blisk Rotor in a High Pressure Compressor
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Topics: Compressors, High pressure (Physics), Rotors, Simulation, Blades, Manufacturing, Vibration, Disks, Aircraft engines, Computational fluid dynamics
Proceedings Papers

Innovative Expanders for Supercritical Carbon Dioxide Cycles

Alessandro Perri, Avinash Renuke, Alberto Traverso
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A020, June 13–17, 2022
Paper No: GT2022-83116
https://doi.org/10.1115/GT2022-83116
View Paper titled, Innovative Expanders for Supercritical Carbon Dioxide Cycles
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Topics: Computational fluid dynamics, Cycles, Supercritical carbon dioxide, Turbines, Turbomachinery
Proceedings Papers

Specific Speed Considerations for Inward Flow Radial Supercritical CO 2 Turbines

Syed J. Hoque, Pramod Kumar, Pramod Chandra Gopi
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A011, June 13–17, 2022
Paper No: GT2022-82090
https://doi.org/10.1115/GT2022-82090
View Paper titled, Specific Speed Considerations for Inward Flow Radial Supercritical CO 2 Turbines
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Topics: Coriolis force, Design, Flow (Dynamics), Supercritical carbon dioxide, Turbines, Gas turbines, Blades, Rotors, Boundary-value problems, Computational fluid dynamics
Proceedings Papers

Leakage Characteristics of a Stepped Balance Piston Labyrinth Seal in Supercritical CO2

Jason Wilkes, Natalie R. Smith, Karl Wygant, Abhay Patil, Chris Kulhanek
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A023, June 13–17, 2022
Paper No: GT2022-83262
https://doi.org/10.1115/GT2022-83262
View Paper titled, Leakage Characteristics of a Stepped Balance Piston Labyrinth Seal in Supercritical CO2
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Topics: Leakage, Pistons, Supercritical carbon dioxide, Thrust, Aerodynamics, Clearances (Engineering), Compressors, Computational fluid dynamics, Fluid-dynamic forces, Pressure
Proceedings Papers

Design of an Additively Manufactured Recuperator With 800 °C Inlet Temperature for sCO2 Power Cycle Application

Michael Marshall, Meysam Akbari, Ji-Cheng Zhao, Kevin Hoopes
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A015, June 13–17, 2022
Paper No: GT2022-82301
https://doi.org/10.1115/GT2022-82301
View Paper titled, Design of an Additively Manufactured Recuperator With 800 °C Inlet Temperature for sCO2 Power Cycle Application
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Topics: Additive manufacturing, Design, Temperature, Thermodynamic power cycles, Flow (Dynamics), Heat transfer, Lasers, Containment, Creep, Heat exchangers
Proceedings Papers

Investigation of Gas Turbine Internal Cooling Using Supercritical CO2 – Effect of Surface Roughness and Channel Aspect Ratio

Arnab Roy, Matthew Searle, Sridharan Ramesh, Douglas Straub
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A026, June 13–17, 2022
Paper No: GT2022-83319
https://doi.org/10.1115/GT2022-83319
View Paper titled, Investigation of Gas Turbine Internal Cooling Using Supercritical CO2 – Effect of Surface Roughness and Channel Aspect Ratio
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Topics: Cooling, Gas turbines, Supercritical carbon dioxide, Surface roughness, Reynolds number, Additive manufacturing, Computational fluid dynamics, Heat transfer, Flow (Dynamics), Fluids
Proceedings Papers

Validation of Steady-State Aerodynamics in a Transonic Linear Cascade at Near Stall Conditions

Carlos Tavera Guerrero, Nenad Glodic, Pieter Groth
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A013, June 13–17, 2022
Paper No: GT2022-81346
https://doi.org/10.1115/GT2022-81346
View Paper titled, Validation of Steady-State Aerodynamics in a Transonic Linear Cascade at Near Stall Conditions
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Topics: Aerodynamics, Cascades (Fluid dynamics), Steady state, Flow (Dynamics), Turbulence, Separation (Technology), Airfoils, Blades, Bubbles, Compressors
Proceedings Papers

An Evaluation of Passive Wall Treatment With Circumferential Grooves in a High-Performance Multi-Stage Axial Compressor

Rubén Bruno Díaz, Jesuíno Takachi Tomita, Cleverson Bringhenti, Daniel Tonon da Silva, Diogo Ferraz Cavalca
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A038, June 13–17, 2022
Paper No: GT2022-83100
https://doi.org/10.1115/GT2022-83100
View Paper titled, An Evaluation of Passive Wall Treatment With Circumferential Grooves in a High-Performance Multi-Stage Axial Compressor
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Topics: Compressors, Computational fluid dynamics
Proceedings Papers

Improvement of the Semi-Analytical Model of a Tesla Disc Turbine by the Correction of the Velocity Profile

Krzysztof Rusin, Emad Hasani Malekshah, Włodzimierz Wróblewski, Sebastian Rulik
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A016, June 13–17, 2022
Paper No: GT2022-83879
https://doi.org/10.1115/GT2022-83879
View Paper titled, Improvement of the Semi-Analytical Model of a Tesla Disc Turbine by the Correction of the Velocity Profile
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Topics: Computational fluid dynamics, Disks, Theorems (Mathematics), Turbines
Proceedings Papers

Investigation of the Map Width Improvement in a Radially Reduced Diffuser Design Concept for a Centrifugal Compressor

Laura McLaughlin, Stephen Spence, Daniel Rusch, Charles Stuart, Marco Geron, Kwok Kai So, Magnus Fischer
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A002, June 13–17, 2022
Paper No: GT2022-78684
https://doi.org/10.1115/GT2022-78684
View Paper titled, Investigation of the Map Width Improvement in a Radially Reduced Diffuser Design Concept for a Centrifugal Compressor
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Topics: Compressors, Computational fluid dynamics, Design, Diffusers
Proceedings Papers

Numerical Investigation of Loss Mechanisms in a Partially Loaded Supersonic ORC Axial Turbine Stage

Karl Ziaja, Pascal Post, Andreas Schramm, Ole Willers, Joerg R. Seume, Francesca di Mare
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A028, June 13–17, 2022
Paper No: GT2022-82852
https://doi.org/10.1115/GT2022-82852
View Paper titled, Numerical Investigation of Loss Mechanisms in a Partially Loaded Supersonic ORC Axial Turbine Stage
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Topics: Computational fluid dynamics, Organic Rankine cycle, Turbines
Proceedings Papers

High-Fidelity CFD Analysis of In-Serviced Shrouded High-Pressure Turbine Rotor Blades

Mario Carta, Tiziano Ghisu, Shahrokh Shahpar
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A019, June 13–17, 2022
Paper No: GT2022-82171
https://doi.org/10.1115/GT2022-82171
View Paper titled, High-Fidelity CFD Analysis of In-Serviced Shrouded High-Pressure Turbine Rotor Blades
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Topics: Blades, Computational fluid dynamics, Damage, High pressure (Physics), Reverse engineering, Rotors, Turbines