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Proceedings Papers

Unsteady Gas Dynamics of Radial Turbine Volutes Under Pressure Pulsations

Bijie Yang, Yingxian Xue, Ricardo Martinez-Botas, Mingyang Yang
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A008, June 13–17, 2022
Paper No: GT2022-82255
DOI: https://doi.org/10.1115/GT2022-82255
View Paper titled, Unsteady Gas Dynamics of Radial Turbine Volutes Under Pressure Pulsations
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Topics: Gasdynamics, Pressure, Turbines, Flow (Dynamics), Engines, Computational fluid dynamics, Pistons, Unsteady flow, Carbon dioxide, Design methodology
Proceedings Papers

A Review of Pressure Gain Combustion Solutions for Aerospace Propulsion

Sreenath Purushothaman, Avinash Renuke, Alessandro Sorce, Alberto Traverso
Proc. ASME. GT2022, Volume 4: Cycle Innovations; Cycle Innovations: Energy Storage, V004T06A035, June 13–17, 2022
Paper No: GT2022-83799
DOI: https://doi.org/10.1115/GT2022-83799
View Paper titled, A Review of Pressure Gain Combustion Solutions for Aerospace Propulsion
Click here to open pdf in another window PDF for A Review of Pressure Gain Combustion Solutions for Aerospace Propulsion
Topics: Aerospace industry, Combustion, Composite materials, Cycles, Engines, Explosions, Pistons, Pressure, Propulsion, Rotors
Proceedings Papers

Dynamic Seal Test Rig: O-Ring Leakage and Sliding Friction Measurements

Thomas Kerr, Jordan Nielson
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, V08AT22A011, June 13–17, 2022
Paper No: GT2022-82221
DOI: https://doi.org/10.1115/GT2022-82221
View Paper titled, Dynamic Seal Test Rig: O-Ring Leakage and Sliding Friction Measurements
Click here to open pdf in another window PDF for Dynamic Seal Test Rig: O-Ring Leakage and Sliding Friction Measurements
Topics: Leakage, Seals, Sliding friction, Sealing (Process), Friction, Machinery, Pistons, Bellows (Equipment), Carbon, Carbon dioxide
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
View Paper titled, Experimental Force Coefficients for a Fully-Partitioned Pocket Damper Seal and Comparison to Other Two Seal Types
Click here to open pdf in another window PDF for Experimental Force Coefficients for a Fully-Partitioned Pocket Damper Seal and Comparison to Other Two Seal Types
Topics: Dampers, Leakage, Stiffness, Compressors, Damping, Blades, Pressure, Rotors, Computational fluid dynamics, Databases
Proceedings Papers

Rotordynamic Design and Experimental Validation of a sCO2 Centrifugal Compressor Equipped With a Pocket Damper Seal

Giuseppe Vannini, Matteo Dozzini, Filippo Cangioli
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT26A001, June 13–17, 2022
Paper No: GT2022-79563
DOI: https://doi.org/10.1115/GT2022-79563
View Paper titled, Rotordynamic Design and Experimental Validation of a sCO2 Centrifugal Compressor Equipped With a Pocket Damper Seal
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Topics: Compressors, Dampers, Design, Vibration, Density, Carbon dioxide, Engineering prototypes, Fluids, Pistons, Stability
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
DOI: https://doi.org/10.1115/GT2022-83262
View Paper titled, Leakage Characteristics of a Stepped Balance Piston Labyrinth Seal in Supercritical CO2
Click here to open pdf in another window PDF for Leakage Characteristics of a Stepped Balance Piston Labyrinth Seal in Supercritical CO2
Topics: Leakage, Pistons, Supercritical carbon dioxide, Thrust, Aerodynamics, Clearances (Engineering), Compressors, Computational fluid dynamics, Fluid-dynamic forces, Pressure
Proceedings Papers

CFD Analysis of the Influence of Gas Content on the Rotordynamic Force Coefficients for a Circumferentially Grooved Annular Seal for Multiple Phase Pumps

Tingcheng Wu, Luis San Andrés, Xueliang Lu
Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A005, June 7–11, 2021
Paper No: GT2021-58631
DOI: https://doi.org/10.1115/GT2021-58631
View Paper titled, CFD Analysis of the Influence of Gas Content on the Rotordynamic Force Coefficients for a Circumferentially Grooved Annular Seal for Multiple Phase Pumps
Click here to open pdf in another window PDF for CFD Analysis of the Influence of Gas Content on the Rotordynamic Force Coefficients for a Circumferentially Grooved Annular Seal for Multiple Phase Pumps
Topics: Computational fluid dynamics, Pumps, Damping, Pressure, Engineering simulation, Excitation, Flow (Dynamics), Rotors, Simulation, Stability
Proceedings Papers

Supersonic Aerodynamic Instability Characteristics of Bidirectional Porous Functionally Graded Panel

Shashidhar Reddy Rajidi, Abhay Gupta, Satyajit Panda
Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT23A013, June 7–11, 2021
Paper No: GT2021-59346
DOI: https://doi.org/10.1115/GT2021-59346
View Paper titled, Supersonic Aerodynamic Instability Characteristics of Bidirectional Porous Functionally Graded Panel
Click here to open pdf in another window PDF for Supersonic Aerodynamic Instability Characteristics of Bidirectional Porous Functionally Graded Panel
Topics: Advanced materials, Aerospace industry, Alloys, Buckling, Finite element model, Flutter (Aerodynamics), Functionally graded materials, Oscillations, Pistons, Porosity
Proceedings Papers

A Novel Hybrid Seal: Design and Experimental Validation on a High Pressure Rotordynamic Test Rig

Giuseppe Vannini, Benjamin Defoy, Manjush Ganiger, Carlo Mazzali
Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A016, June 7–11, 2021
Paper No: GT2021-59371
DOI: https://doi.org/10.1115/GT2021-59371
View Paper titled, A Novel Hybrid Seal: Design and Experimental Validation on a High Pressure Rotordynamic Test Rig
Click here to open pdf in another window PDF for A Novel Hybrid Seal: Design and Experimental Validation on a High Pressure Rotordynamic Test Rig
Topics: Design, High pressure (Physics), Honeycomb structures, Pistons, Pressure, Compressors, Computational fluid dynamics, Control equipment, Dampers, Engines
Proceedings Papers

Surrogate Models for the Prediction of Damping Ratios in Coupled Acoustoelastic Rotor-Cavity Systems

Christoph Rocky Heinrich, Tina Unglaube, Bernd Beirow, Dieter Brillert, Klaus Steff, Nico Petry
Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT29A009, June 7–11, 2021
Paper No: GT2021-58835
DOI: https://doi.org/10.1115/GT2021-58835
View Paper titled, Surrogate Models for the Prediction of Damping Ratios in Coupled Acoustoelastic Rotor-Cavity Systems
Click here to open pdf in another window PDF for Surrogate Models for the Prediction of Damping Ratios in Coupled Acoustoelastic Rotor-Cavity Systems
Topics: Cavities, Damping, Rotors, Acoustics, Compressors, Impellers, Compressed gases, Disks, Fluid structure interaction, High cycle fatigue
Proceedings Papers

Modeling and Testing of a Novel Ultra-Low Temperature sCO2 Opposing Piston Expander

Joshua Schmitt, Jordan Nielson
Proc. ASME. GT2021, Volume 10: Supercritical CO2, V010T30A027, June 7–11, 2021
Paper No: GT2021-60251
DOI: https://doi.org/10.1115/GT2021-60251
View Paper titled, Modeling and Testing of a Novel Ultra-Low Temperature sCO2 Opposing Piston Expander
Click here to open pdf in another window PDF for Modeling and Testing of a Novel Ultra-Low Temperature sCO2 Opposing Piston Expander
Topics: Modeling, Pistons, Temperature, Testing, Cycles, Brayton cycle, Cylinders, Cylinder tests (Concrete), Energy generation, Engines
Proceedings Papers

Aero Engine Concepts Beyond 2030: Part 2 — The Free-Piston Composite Cycle Engine

Sascha Kaiser, Oliver Schmitz, Hermann Klingels
Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T06A018, September 21–25, 2020
Paper No: GT2020-15395
DOI: https://doi.org/10.1115/GT2020-15395
View Paper titled, Aero Engine Concepts Beyond 2030: Part 2 — The Free-Piston Composite Cycle Engine
Click here to open pdf in another window PDF for Aero Engine Concepts Beyond 2030: Part 2 — The Free-Piston Composite Cycle Engine
Topics: Aircraft engines, Aviation, Climate, Combustion, Composite materials, Cycles, Engines, Pistons
Proceedings Papers

Aero Engine Concepts Beyond 2030: Part 3 — Experimental Demonstration of Technological Feasibility

Oliver Schmitz, Sascha Kaiser, Hermann Klingels, Petra Kufner, Martin Obermüller, Martin Henke, Jan Zanger, Felix Grimm, Simon Schuldt, Anna Marcellan, Daniele Cirigliano, Peter Kutne, Alex Heron-Himmel, Stephan Schneider, Judith Richter, Bernhard Weigand, Anne Göhler-Stroh, Arne Seitz, Mirko Hornung
Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T06A019, September 21–25, 2020
Paper No: GT2020-15397
DOI: https://doi.org/10.1115/GT2020-15397
View Paper titled, Aero Engine Concepts Beyond 2030: Part 3 — Experimental Demonstration of Technological Feasibility
Click here to open pdf in another window PDF for Aero Engine Concepts Beyond 2030: Part 3 — Experimental Demonstration of Technological Feasibility
Topics: Aircraft engines, Aviation, Composite materials, Cycles, Engines, Pistons, Steam
Proceedings Papers

Test Results for the Static and Rotordynamic Characteristics of a Long (L/D = 0.75) Smooth Seal in Two-Phase (Mainly Gas) Conditions With a 62-Bar Inlet Pressure

Dung L. Tran, Dara W. Childs, Hari Shrestha, Min Zhang
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A001, September 21–25, 2020
Paper No: GT2020-14118
DOI: https://doi.org/10.1115/GT2020-14118
View Paper titled, Test Results for the Static and Rotordynamic Characteristics of a Long (L/D = 0.75) Smooth Seal in Two-Phase (Mainly Gas) Conditions With a 62-Bar Inlet Pressure
Click here to open pdf in another window PDF for Test Results for the Static and Rotordynamic Characteristics of a Long (L/D = 0.75) Smooth Seal in Two-Phase (Mainly Gas) Conditions With a 62-Bar Inlet Pressure
Topics: Pressure, Stiffness, Damping, Flow (Dynamics), Gas turbines, Geometry, Leakage, Multiphase flow, Pistons, Pumps
Proceedings Papers

Experimental Study on the Performance of a See-Through Labyrinth Seal With Two-Phase, Mainly-Liquid Mixtures

Min Zhang, Dara W. Childs
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A008, September 21–25, 2020
Paper No: GT2020-14268
DOI: https://doi.org/10.1115/GT2020-14268
View Paper titled, Experimental Study on the Performance of a See-Through Labyrinth Seal With Two-Phase, Mainly-Liquid Mixtures
Click here to open pdf in another window PDF for Experimental Study on the Performance of a See-Through Labyrinth Seal With Two-Phase, Mainly-Liquid Mixtures
Topics: Centrifugal pumps, Clearances (Engineering), Damping, Flow (Dynamics), Fluids, Friction, Gas industry, Leakage, Pistons, Pressure
Proceedings Papers

Numerical Investigations on the Static and Rotordynamic Characteristics of Hole-Pattern Seals With Annular or Pocket Grooves on Seal Stator

Zhi Fang, Zhigang Li, Jun Li, Zhenping Feng
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A019, June 17–21, 2019
Paper No: GT2019-90776
DOI: https://doi.org/10.1115/GT2019-90776
View Paper titled, Numerical Investigations on the Static and Rotordynamic Characteristics of Hole-Pattern Seals With Annular or Pocket Grooves on Seal Stator
Click here to open pdf in another window PDF for Numerical Investigations on the Static and Rotordynamic Characteristics of Hole-Pattern Seals With Annular or Pocket Grooves on Seal Stator
Topics: Stators, Stiffness, Computational fluid dynamics, Damping, Compressors, Deformation, Leakage flows, Transients (Dynamics), Dampers, Design
Proceedings Papers

Pump Grooved Seals: A CFD Approach to Improve Bulk-Flow Model Predictions

Tingcheng Wu, Luis San Andrés
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A015, June 17–21, 2019
Paper No: GT2019-90499
DOI: https://doi.org/10.1115/GT2019-90499
View Paper titled, Pump Grooved Seals: A CFD Approach to Improve Bulk-Flow Model Predictions
Click here to open pdf in another window PDF for Pump Grooved Seals: A CFD Approach to Improve Bulk-Flow Model Predictions
Topics: Computational fluid dynamics, Flow (Dynamics), Pumps, Leakage, Rotors, Shapes, Clearances (Engineering), Damping, Pressure, Stators
Proceedings Papers

Transcritical / Supercritical CO2 Recompression Brayton Cycle Using a Novel Rotary Liquid Piston Compressor

Azam Thatte
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A019, June 17–21, 2019
Paper No: GT2019-91088
DOI: https://doi.org/10.1115/GT2019-91088
View Paper titled, Transcritical / Supercritical CO2 Recompression Brayton Cycle Using a Novel Rotary Liquid Piston Compressor
Click here to open pdf in another window PDF for Transcritical / Supercritical CO2 Recompression Brayton Cycle Using a Novel Rotary Liquid Piston Compressor
Topics: Brayton cycle, Compressors, Pistons, Supercritical carbon dioxide, Compression, Carbon dioxide, Fluids, Flow (Dynamics), Temperature, Bearings
Proceedings Papers

Development and Initial Testing of a Radial Wave Engine

Pejman Akbari, Christopher J. Tait, Marc D. Polanka, Brian C. Sell
Proc. ASME. GT2019, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A038, June 17–21, 2019
Paper No: GT2019-90608
DOI: https://doi.org/10.1115/GT2019-90608
View Paper titled, Development and Initial Testing of a Radial Wave Engine
Click here to open pdf in another window PDF for Development and Initial Testing of a Radial Wave Engine
Topics: Engines, Testing, Waves, Combustion chambers, Combustion, Gas turbines, Pressure, Disks, Weight (Mass), Design
Proceedings Papers

Large-Eddy Simulations of Heat Transfer Within a Multi-Perforation Synthetic Jets Configuration

Soizic Esnault, Florent Duchaine, Laurent Gicquel
Proc. ASME. GT2019, Volume 5A: Heat Transfer, V05AT12A016, June 17–21, 2019
Paper No: GT2019-91375
DOI: https://doi.org/10.1115/GT2019-91375
View Paper titled, Large-Eddy Simulations of Heat Transfer Within a Multi-Perforation Synthetic Jets Configuration
Click here to open pdf in another window PDF for Large-Eddy Simulations of Heat Transfer Within a Multi-Perforation Synthetic Jets Configuration
Topics: Heat transfer, Jets, Large eddy simulation, Flow (Dynamics), Pistons, Heat, Suction, Acoustics, Cavities, Cooling