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Proceedings Papers

Forced Response System Identification of Full Aero-Engine Rotordynamic Systems for Prognostics and Diagnostics

Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT26A016, June 13–17, 2022

Paper No: GT2022-84058

DOI: https://doi.org/10.1115/GT2022-84058

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Topics: Aircraft engines, Damping, Modeling, System identification

Journal Articles

Dynamic Model-Based Identification of Cavitation Compliance and Mass Flow Gain Factor in Rocket Engine Turbopump Inducers

Y. Wan, M. Manfredi, A. Pasini, Z. Spakovszky

J. Eng. Gas Turbines Power. February 2021, 143(2): 021011.

Paper No: GTP-20-1594

DOI: https://doi.org/10.1115/1.4049015

Published Online: January 18, 2021

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Topics: Cavitation, Flow (Dynamics), Surges

Proceedings Papers

Dynamic Model Based Identification of Cavitation Compliance and Mass Flow Gain Factor in Rocket Engine Turbopump Inducers

Y. Wan, M. Manfredi, A. Pasini, Z. Spakovszky

Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A031, September 21–25, 2020

Paper No: GT2020-15655

DOI: https://doi.org/10.1115/GT2020-15655

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Topics: Cavitation, Dynamic models, Flow (Dynamics), Rocket engines

Journal Articles

Effects of Transient Heat Transfer on Compressor Stability

A. Kiss, Z. Spakovszky

J. Turbomach. December 2018, 140(12): 121003.

Paper No: TURBO-18-1182

DOI: https://doi.org/10.1115/1.4041290

Published Online: October 15, 2018

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Topics: Compressors, Heat transfer, Transients (Dynamics), Blades, Transient heat transfer, Flow (Dynamics), Heat, Stability

Proceedings Papers

Effects of Transient Heat Transfer on Compressor Stability

A. Kiss, Z. Spakovszky

Proc. ASME. GT2018, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A006, June 11–15, 2018

Paper No: GT2018-75413

DOI: https://doi.org/10.1115/GT2018-75413

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Topics: Compressors, Stability, Transient heat transfer, Heat transfer, Transients (Dynamics), Blades, Flow (Dynamics), Computation, Engines, Capacitance

Proceedings Papers

Modeling Near Critical and Supercritical Fuel Injection and Mixing in Gas Turbine Applications

C. Lettieri, G. Subashki, Z. Spakovszky

Proc. ASME. GT2018, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A009, June 11–15, 2018

Paper No: GT2018-75195

DOI: https://doi.org/10.1115/GT2018-75195

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Topics: Fuels, Gas turbines, Modeling, Evaporation, Drops, Fluids, Combustion chambers, Sprays, Transients (Dynamics), Vapors

Journal Articles

An Investigation of Condensation Effects in Supercritical Carbon Dioxide Compressors

C. Lettieri, D. Yang, Z. Spakovszky

J. Eng. Gas Turbines Power. August 2015, 137(8): 082602.

Paper No: GTP-14-1592

DOI: https://doi.org/10.1115/1.4029577

Published Online: August 1, 2015

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Topics: Compressors, Condensation, Nozzles, Supercritical carbon dioxide

Proceedings Papers

An Investigation of Real Gas Effects in Supercritical CO 2 Centrifugal Compressors

N. Baltadjiev, C. Lettieri, Z. Spakovszky

Proc. ASME. GT2014, Volume 3B: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Supercritical CO2 Power Cycles; Wind Energy, V03BT36A011, June 16–20, 2014

Paper No: GT2014-26180

DOI: https://doi.org/10.1115/GT2014-26180

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Topics: Compressors, Supercritical carbon dioxide, Flow (Dynamics), Fluids, Vapor pressure, Carbon capture and storage, Carbon dioxide, Channel flow, Computational fluid dynamics, Computer simulation

Journal Articles

Low-Flow-Coefficient Centrifugal Compressor Design for Supercritical CO 2

C. Lettieri, N. Baltadjiev, M. Casey, Z. Spakovszky

J. Turbomach. August 2014, 136(8): 081008.

Paper No: TURBO-13-1235

DOI: https://doi.org/10.1115/1.4026322

Published Online: January 31, 2014

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Topics: Compressors, Design, Diffusers, Flow (Dynamics), Impellers, Supercritical carbon dioxide, Pressure, Stability

Proceedings Papers

Low-Flow-Coefficient Centrifugal Compressor Design for Supercritical CO 2

C. Lettieri, N. Baltadjiev, M. Casey, Z. Spakovszky

Proc. ASME. GT2013, Volume 6C: Turbomachinery, V06CT40A008, June 3–7, 2013

Paper No: GT2013-95012

DOI: https://doi.org/10.1115/GT2013-95012

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Topics: Compressors, Design, Flow (Dynamics), Supercritical carbon dioxide, Impellers, Diffusers, Carbon capture and storage, Tertiary petroleum recovery, Vaneless diffusers, Vortex shedding

Journal Articles

Drag Management in High Bypass Turbofan Nozzles for Quiet Approach Applications

P. Shah, A. Robinson, A. Price, Z. Spakovszky

J. Turbomach. February 2014, 136(2): 021009.

Paper No: TURBO-12-1250

DOI: https://doi.org/10.1115/1.4023908

Published Online: September 26, 2013

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Topics: Drag (Fluid dynamics), Flow (Dynamics), Noise (Sound), Nozzles, Swirling flow, Simulation, Engines, Computational fluid dynamics, Aircraft

Proceedings Papers

Drag Management in High Bypass Turbofan Nozzles for Quiet Approach Applications

P. Shah, A. Robinson, A. Price, Z. Spakovszky

Proc. ASME. GT2011, Volume 7: Turbomachinery, Parts A, B, and C, 995-1009, June 6–10, 2011

Paper No: GT2011-45577

DOI: https://doi.org/10.1115/GT2011-45577

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Topics: Drag (Fluid dynamics), Nozzles, Turbofans, Noise (Sound), Engines, Computational fluid dynamics, Acoustics, Aircraft, Engineering simulation, Outflow

Journal Articles

Demonstration of a Palm-Sized 30 W Air-to-Power Turbine Generator

S. Sato, S. Jovanovic, J. Lang, Z. Spakovszky

J. Eng. Gas Turbines Power. October 2011, 133(10): 102301.

DOI: https://doi.org/10.1115/1.4002826

Published Online: May 2, 2011

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Topics: Design, Flow (Dynamics), Generators, Rotors, Turbines, Turbogenerators, Blades, Stress

Proceedings Papers

Demonstration of a Palm-Sized 30 Watt Air-to-Power Turbine Generator

S. Sato, S. Jovanovic, J. Lang, Z. Spakovszky

Proc. ASME. GT2010, Volume 5: Industrial and Cogeneration; Microturbines and Small Turbomachinery; Oil and Gas Applications; Wind Turbine Technology, 459-470, June 14–18, 2010

Paper No: GT2010-22925

DOI: https://doi.org/10.1115/GT2010-22925

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Topics: Turbogenerators, Turbines, Design, Stress, Electricity (Physics), Ball bearings, Computational fluid dynamics, Generators, Microelectromechanical systems, Aluminum

Proceedings Papers

A Thermal Mixing Scheme for Portable Gas Turbines

S. Tanaka, Z. Spakovszky

Proc. ASME. GT2010, Volume 5: Industrial and Cogeneration; Microturbines and Small Turbomachinery; Oil and Gas Applications; Wind Turbine Technology, 379-389, June 14–18, 2010

Paper No: GT2010-22530

DOI: https://doi.org/10.1115/GT2010-22530

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Topics: Gas turbines, Cooling, Flow (Dynamics), Exhaust systems, Ejectors, Computational fluid dynamics, Design, Ducts, Temperature, Vortices

Journal citation

NARROW

Forced Response System Identification of Full Aero-Engine Rotordynamic Systems for Prognostics and Diagnostics

Dynamic Model-Based Identification of Cavitation Compliance and Mass Flow Gain Factor in Rocket Engine Turbopump Inducers

Dynamic Model Based Identification of Cavitation Compliance and Mass Flow Gain Factor in Rocket Engine Turbopump Inducers

Effects of Transient Heat Transfer on Compressor Stability

Effects of Transient Heat Transfer on Compressor Stability

Modeling Near Critical and Supercritical Fuel Injection and Mixing in Gas Turbine Applications

An Investigation of Condensation Effects in Supercritical Carbon Dioxide Compressors

An Investigation of Real Gas Effects in Supercritical CO 2 Centrifugal Compressors

Low-Flow-Coefficient Centrifugal Compressor Design for Supercritical CO 2

Low-Flow-Coefficient Centrifugal Compressor Design for Supercritical CO 2

Drag Management in High Bypass Turbofan Nozzles for Quiet Approach Applications

Drag Management in High Bypass Turbofan Nozzles for Quiet Approach Applications

Demonstration of a Palm-Sized 30 W Air-to-Power Turbine Generator

Demonstration of a Palm-Sized 30 Watt Air-to-Power Turbine Generator

A Thermal Mixing Scheme for Portable Gas Turbines

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