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J. V. R. Prasad
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Proceedings Papers

Improved Stall Recovery in “Electrified” Gas Turbine Engines

Zhenhao Jing, Yedidia Neumeier, J. V. R. Prasad, Darrell K. James
Proc. ASME. GT2024, Volume 4: Controls, Diagnostics, and Instrumentation, V004T05A024, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125341
https://doi.org/10.1115/GT2024-125341
View Paper titled, Improved Stall Recovery in “Electrified” Gas Turbine Engines
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Topics: Gas turbines
Proceedings Papers

A Study of Loss Model Parameter Sensitivity in Compressor Unsteady Flow Simulations

Zhenhao Jing, Yedidia Neumeier, J. V. R. Prasad, Darrell K. James
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT35A022, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128143
https://doi.org/10.1115/GT2024-128143
View Paper titled, A Study of Loss Model Parameter Sensitivity in Compressor Unsteady Flow Simulations
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Topics: Compressors, Engineering simulation, Simulation, Unsteady flow
Proceedings Papers

A New Perspective on Measuring Compressor Characteristics

Zhenhao Jing, Yedidia Neumeier, J. V. R. Prasad, Darrell K. James
Proc. ASME. GTINDIA2023, ASME 2023 Gas Turbine India Conference, V001T01A011, December 7–8, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2023-118691
https://doi.org/10.1115/GTINDIA2023-118691
View Paper titled, A New Perspective on Measuring Compressor Characteristics
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Topics: Compressors, Flow (Dynamics), Equilibrium (Physics), Oscillations, Transients (Dynamics), Acoustics, Blades, Collapse, Design, Feedback
Proceedings Papers

Implementation of a Central Upwind Scheme in Unsteady Compressible Flow Simulation of Multi-Stage Axial-Centrifugal Compressor

Zhenhao Jing, Yedidia Neumeier, J. V. R. Prasad, Darrell K. James
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT32A004, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101015
https://doi.org/10.1115/GT2023-101015
View Paper titled, Implementation of a Central Upwind Scheme in Unsteady Compressible Flow Simulation of Multi-Stage Axial-Centrifugal Compressor
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Topics: Compressible flow, Compressors, Flow (Dynamics), Simulation
Proceedings Papers

Real-Time Virtual Sensing of Component Damage Variables in a Gas Turbine Engine

Juan-Pablo Afman, J. V. R. Prasad, Stephen Antolovich
Proc. ASME. GTINDIA2017, Volume 2: Structures and Dynamics; Renewable Energy (Solar, Wind); Inlets and Exhausts; Emerging Technologies (Hybrid Electric Propulsion, UAV, ...); GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, V002T11A002, December 7–8, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2017-4706
https://doi.org/10.1115/GTINDIA2017-4706
View Paper titled, Real-Time Virtual Sensing of Component Damage Variables in a Gas Turbine Engine
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Topics: Damage, Gas turbines, Engines, Sensors, Maintenance, Thermomechanics, Aircraft, Algorithms, Cycles, Failure
Proceedings Papers

Validation of a 1D Transient Simulation Model of a Multistage Axial Compressor

Reema Kundu, J. V. R. Prasad, Yedidia Neumeier
Proc. ASME. GTINDIA2015, ASME 2015 Gas Turbine India Conference, V001T01A010, December 2–3, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2015-1237
https://doi.org/10.1115/GTINDIA2015-1237
View Paper titled, Validation of a 1D Transient Simulation Model of a Multistage Axial Compressor
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Topics: Compressors, Simulation models, Transients (Dynamics), Flow (Dynamics), Blades, Oscillations, Compression, Databases, Ducts, Dynamic models
Proceedings Papers

Real Time Analytical Linearization of Turbofan Engine Model

Gi-Yun Chung, J. V. R. Prasad, Manuj Dhingra, Richard Meisner
Proc. ASME. GT2013, Volume 4: Ceramics; Concentrating Solar Power Plants; Controls, Diagnostics and Instrumentation; Education; Electric Power; Fans and Blowers, V004T06A007, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-94464
https://doi.org/10.1115/GT2013-94464
View Paper titled, Real Time Analytical Linearization of Turbofan Engine Model
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Topics: Engines, Turbofans, Equilibrium (Physics), Dynamics (Mechanics), Control equipment, Flow (Dynamics), Gas turbines, Physics, Propulsion systems, Simulation
Journal Articles

Real Time Analytical Linearization of Turbofan Engine Model

Gi-Yun Chung, J. V. R. Prasad, Manuj Dhingra, Richard Meisner
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2014, 136(1): 011201.
Paper No: GTP-13-1250
https://doi.org/10.1115/1.4025310
Published Online: October 22, 2013
View Article titled, Real Time Analytical Linearization of Turbofan Engine Model
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Topics: Compressors, Dynamics (Mechanics), Engines, Flow (Dynamics), Nozzles, Turbines, Turbofans, Uncertainty, Equilibrium (Physics)
Proceedings Papers

Correlation Measure-Based Stall Margin Estimation for a Single-Stage Axial Compressor

Yuan Liu, Manuj Dhingra, J. V. R. Prasad
Proc. ASME. GT2011, Volume 3: Controls, Diagnostics and Instrumentation; Education; Electric Power; Microturbines and Small Turbomachinery; Solar Brayton and Rankine Cycle, 337-348, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-46326
https://doi.org/10.1115/GT2011-46326
View Paper titled, Correlation Measure-Based Stall Margin Estimation for a Single-Stage Axial Compressor
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Topics: Compressors, Design, Pressure, Rotors, Stability, Steady state, Surges
Proceedings Papers

An Analytical Approach to Gas Turbine Engine Model Linearization

Gi-Yun Chung, Manuj Dhingra, J. V. R. Prasad, Richard Meisner, Steven Sirica
Proc. ASME. GT2011, Volume 3: Controls, Diagnostics and Instrumentation; Education; Electric Power; Microturbines and Small Turbomachinery; Solar Brayton and Rankine Cycle, 105-115, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45371
https://doi.org/10.1115/GT2011-45371
View Paper titled, An Analytical Approach to Gas Turbine Engine Model Linearization
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Topics: Algorithms, Bifurcation, Engines, Flow (Dynamics), Gas turbines, Turbofans, Weight (Mass)
Proceedings Papers

Impact of Inter-Stage Dynamics on Stalling Stage Identification

Manuj Dhingra, J. V. R. Prasad, Prashant Tiwari, Tsuguji Nakano, Andy Breeze-Stringfellow
Proc. ASME. GT2011, Volume 7: Turbomachinery, Parts A, B, and C, 1799-1808, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-46668
https://doi.org/10.1115/GT2011-46668
View Paper titled, Impact of Inter-Stage Dynamics on Stalling Stage Identification
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Topics: Dynamics (Mechanics), Compressors, Pressure, Surges, Transients (Dynamics), Waves, Compression, Computer simulation, Design, Dynamic models
Journal Articles

Correlation Measure-Based Stall Margin Estimation for a Single-Stage Axial Compressor

Yuan Liu, Manuj Dhingra, J. V. R. Prasad
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2012, 134(1): 011603.
https://doi.org/10.1115/1.4004177
Published Online: November 7, 2011
View Article titled, Correlation Measure-Based Stall Margin Estimation for a Single-Stage Axial Compressor
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Topics: Compressors, Pressure, Rotors, Surges, Transients (Dynamics), Signals
Journal Articles

Active Compressor Stability Management Via a Stall Margin Control Mode

Yuan Liu, Manuj Dhingra, J. V. R. Prasad
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. May 2010, 132(5): 051602.
https://doi.org/10.1115/1.3204652
Published Online: March 4, 2010
View Article titled, Active Compressor Stability Management Via a Stall Margin Control Mode
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Topics: Compressors, Control equipment, Engines, Stability, Control systems
Proceedings Papers

Active Compressor Stability Management via a Stall Margin Control Mode

Yuan Liu, Manuj Dhingra, J. V. R. Prasad
Proc. ASME. GT2009, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation; Education; Electric Power; Awards and Honors, 731-743, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-60140
https://doi.org/10.1115/GT2009-60140
View Paper titled, Active Compressor Stability Management via a Stall Margin Control Mode
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Topics: Compressors, Stability, Engines, Aircraft engines, Computer simulation, Control systems, Fluctuations (Physics), Pressure, Rotors, Surges
Proceedings Papers

Experimental Analysis of a Waveguide Pressure Measuring System

Matthew A. White, Manuj Dhingra, J. V. R. Prasad
Proc. ASME. GT2009, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation; Education; Electric Power; Awards and Honors, 767-776, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-60182
https://doi.org/10.1115/GT2009-60182
View Paper titled, Experimental Analysis of a Waveguide Pressure Measuring System
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Topics: Experimental analysis, Pressure, Waveguides, Blades, Compressors, Oscillations, Frequency response, High temperature, Pressure transducers, Probes
Journal Articles

Experimental Analysis of a Waveguide Pressure Measuring System

Matthew A. White, Manuj Dhingra, J. V. R. Prasad
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2010, 132(4): 041603.
https://doi.org/10.1115/1.3159387
Published Online: January 26, 2010
View Article titled, Experimental Analysis of a Waveguide Pressure Measuring System
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Topics: Blades, Pressure, Sensors, Waveguides, Compressors, Frequency response, Oscillations, Temperature, Probes, Pressure measurement
Proceedings Papers

Benefits of Active Compressor Stability Management on Turbofan Engine Operability

Yuan Liu, Manuj Dhingra, J. V. R. Prasad
Proc. ASME. GT2008, Volume 2: Controls, Diagnostics and Instrumentation; Cycle Innovations; Electric Power, 303-314, June 9–13, 2008
Publisher: American Society of Mechanical Engineers
Paper No: GT2008-51307
https://doi.org/10.1115/GT2008-51307
View Paper titled, Benefits of Active Compressor Stability Management on Turbofan Engine Operability
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Topics: Compressors, Engines, Stability, Turbofans, Control equipment, Simulation, Computer simulation, Dynamics (Mechanics), Emergency response, Gas turbines
Journal Articles

Benefits of Active Compressor Stability Management on Turbofan Engine Operability

Yuan Liu, Manuj Dhingra, J. V. R. Prasad
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. July 2009, 131(4): 041601.
https://doi.org/10.1115/1.3028565
Published Online: April 14, 2009
View Article titled, Benefits of Active Compressor Stability Management on Turbofan Engine Operability
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Topics: Compressors, Engines, Fuels, Stability, Simulation, Turbofans
Proceedings Papers

A Stochastic Model for a Compressor Stability Measure

Manuj Dhingra, Yedidia Neumeier, J. V. R. Prasad, Andrew Breeze-Stringfellow, Hyoun-Woo Shin, Peter N. Szucs
Proc. ASME. GT2006, Volume 2: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation; Environmental and Regulatory Affairs, 833-843, May 8–11, 2006
Publisher: American Society of Mechanical Engineers
Paper No: GT2006-91182
https://doi.org/10.1115/GT2006-91182
View Paper titled, A Stochastic Model for a Compressor Stability Measure
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Topics: Compressors, Stability, Stochastic processes, Flow (Dynamics), Gages, Model development, Model validation, Rotors
Proceedings Papers

Development and Demonstration of a Stability Management System for Gas Turbine Engines

D. Christensen, P. Cantin, D. Gutz, P. N. Szucs, A. R. Wadia, J. Armor, M. Dhingra, Y. Neumeier, J. V. R. Prasad
Proc. ASME. GT2006, Volume 6: Turbomachinery, Parts A and B, 165-174, May 8–11, 2006
Publisher: American Society of Mechanical Engineers
Paper No: GT2006-90324
https://doi.org/10.1115/GT2006-90324
View Paper titled, Development and Demonstration of a Stability Management System for Gas Turbine Engines
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Topics: Gas turbines, Stability, Compressors, Engines, Algorithms, Transients (Dynamics), Fuels, Signals, Valves, Aircraft engines