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Proceedings Papers

Flow Dynamics of a Subsonic Axial Compressor Rotor With Leaned Tandem Blades

Amit Kumar, Jerry T. John, Akshay Kumar, Hitesh Chhugani, A. M. Pradeep
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A021, June 13–17, 2022
Paper No: GT2022-82075
DOI: https://doi.org/10.1115/GT2022-82075
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Topics: Blades, Compressors, Flow (Dynamics), Leakage, Rotors, Vortices, Design, Pressure, Shapes, Diffusion (Physics)
Journal Articles

Aerodynamics of Sweep in a Tandem-Bladed Subsonic Axial Compressor Rotor

Amit Kumar, Jerry T. John, Hitesh Chhugani, Akshay Kumar, A. M. Pradeep
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. December 2022, 144(12): 121203.
Paper No: FE-22-1171
DOI: https://doi.org/10.1115/1.4055054
Published Online: August 8, 2022
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Topics: Blades, Design, Flow (Dynamics), Rotors, Vortices
Journal Articles

Response of a Tandem-Staged Compressor to Circumferential Inflow Distortion

Amit Kumar, A. M. Pradeep
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. September 2022, 144(9): 091202.
Paper No: FE-21-1434
DOI: https://doi.org/10.1115/1.4053955
Published Online: March 18, 2022
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Topics: Flow (Dynamics), Pressure, Rotors, Stators, Design, Blades, Inflow, Compressors
Journal Articles

Effect of Differential Tip Clearance on the Performance of a Tandem Rotor

Amit Kumar, Hitesh Chhugani, Shubhali More, A. M. Pradeep
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. August 2022, 144(8): 081007.
Paper No: TURBO-21-1125
DOI: https://doi.org/10.1115/1.4053597
Published Online: March 3, 2022
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Topics: Blades, Clearances (Engineering), Design, Flow (Dynamics), Pressure, Rotors, Vortices, Leakage, Chords (Trusses)
Proceedings Papers

Understanding the Dynamics of Critical Transitions in a Contra-Rotating Fan

Manas Madasseri Payyappalli, A. M. Pradeep
Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT39A004, June 7–11, 2021
Paper No: GT2021-58937
DOI: https://doi.org/10.1115/GT2021-58937
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Topics: Annulus, Design, Dynamics (Mechanics), Fans, Flow (Dynamics), Leakage, Rotors, Stress, Vortices, Waves
Proceedings Papers

Thermodynamic Analysis of Waste Heat Recovery Systems in Large Waste Heat Generating Industries

Shantanu Thada, Yash T. Rajan, A. M. Pradeep, Arunkumar Sridharan
Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T06A007, June 7–11, 2021
Paper No: GT2021-59194
DOI: https://doi.org/10.1115/GT2021-59194
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Topics: Cement plants, Genetic algorithms, Heat recovery, Optimization, Organic Rankine cycle, Waste heat
Proceedings Papers

Effect of Differential Tip Clearance on the Performance of a Tandem Rotor

Amit Kumar, Hitesh Chhugani, Shubhali More, A. M. Pradeep
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A023, June 7–11, 2021
Paper No: GT2021-59007
DOI: https://doi.org/10.1115/GT2021-59007
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Topics: Clearances (Engineering), Rotors, Vortices, Pressure, Pressure gradient, Blades, Design, Engines, Flow (Dynamics), Leakage
Journal Articles

Windmilling Characteristics of a Contra-Rotating Fan

M. P. Manas, Arghya Karmakar, A. M. Pradeep
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2021, 143(8): 081004.
Paper No: GTP-20-1485
DOI: https://doi.org/10.1115/1.4049265
Published Online: March 31, 2021
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Topics: Flow (Dynamics), Rotors
Proceedings Papers

Pre-Stall Waves: Precursors to Stall Inception in a Contra-Rotating Axial Fan

Manas Madasseri Payyappalli, A. M. Pradeep
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A010, September 21–25, 2020
Paper No: GT2020-14371
DOI: https://doi.org/10.1115/GT2020-14371
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Topics: Stall inception, Waves, Compressors, Design, Excitation, Fluids, Inflow, Rotors, Spectra (Spectroscopy)
Proceedings Papers

Windmilling Characteristics of a Contra-Rotating Fan

Manas Madasseri Payyappalli, Arghya Karmakar, A. M. Pradeep
Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T01A010, September 21–25, 2020
Paper No: GT2020-14373
DOI: https://doi.org/10.1115/GT2020-14373
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Topics: Flow (Dynamics), Physics, Pressure drop, Pressure measurement, Rotors, Stall inception
Proceedings Papers

Flow Interactions in Low Bypass Ratio Multi-Spool Turbofan Engines

Vishwas Verma, Gursharanjit Singh, A. M. Pradeep
Proc. ASME. GTINDIA2019, Volume 2: Combustion, Fuels, and Emissions; Renewable Energy: Solar and Wind; Inlets and Exhausts; Emerging Technologies: Hybrid Electric Propulsion and Alternate Power Generation; GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, V002T07A003, December 5–6, 2019
Paper No: GTINDIA2019-2572
DOI: https://doi.org/10.1115/GTINDIA2019-2572
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Topics: Compression, Compressors, Ducts, Engines, Flow (Dynamics), Turbofans, Wakes, Integrated systems, Shapes, Modeling
Proceedings Papers

Performance Evaluation of Contra-Rotating Fans Operating Under Different Speed Combinations

Navjot Joshi, Manas Madasseri Payyappalli, A. M. Pradeep
Proc. ASME. GTINDIA2019, Volume 1: Compressors, Fans, and Pumps; Turbines; Heat Transfer; Structures and Dynamics, V001T01A007, December 5–6, 2019
Paper No: GTINDIA2019-2569
DOI: https://doi.org/10.1115/GTINDIA2019-2569
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Topics: Blades, Chords (Trusses), Delays, Diffusion (Physics), Engineering simulation, Fans, Flow (Dynamics), Leakage, Performance evaluation, Physics
Proceedings Papers

Understanding Unsteady Flow Behaviour in a Low Aspect Ratio Contra-Rotating Axial Fan Under Radially Distorted Inflow

Manas Madasseri Payyappalli, A. M. Pradeep
Proc. ASME. GT2019, Volume 2A: Turbomachinery, V02AT45A003, June 17–21, 2019
Paper No: GT2019-90252
DOI: https://doi.org/10.1115/GT2019-90252
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Topics: Inflow, Unsteady flow, Rotors, Flow (Dynamics), Gas turbines, Engines, Fans, Fourier series, Pressure, Pressure sensors
Proceedings Papers

Effect of Tandem Blading in Contra-Rotating Axial Flow Fans

Manas Madasseri Payyappalli, A. M. Pradeep
Proc. ASME. GT2018, Volume 2A: Turbomachinery, V02AT39A008, June 11–15, 2018
Paper No: GT2018-75477
DOI: https://doi.org/10.1115/GT2018-75477
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Topics: Axial flow, Blades, Design, Emissions, Fans, Flow (Dynamics), Fuel efficiency, Leakage, Physics, Pressure
Proceedings Papers

Performance Evaluation of a Tandem Rotor Under Design and Off-Design Operation

Amit Kumar, A. M. Pradeep
Proc. ASME. GT2018, Volume 2A: Turbomachinery, V02AT39A009, June 11–15, 2018
Paper No: GT2018-75478
DOI: https://doi.org/10.1115/GT2018-75478
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Topics: Design, Performance evaluation, Rotors, Diffusion (Physics), Flow (Dynamics), Blades, Compressors, Flow separation, Risk, Nozzles
Proceedings Papers

Effect of Spanwise Variation of Chord on the Performance of a Turbine Cascade

Srikanth Deshpande, A. M. Pradeep, Marcus Thern, Magnus Genrup
Proc. ASME. GT2017, Volume 2A: Turbomachinery, V02AT40A009, June 26–30, 2017
Paper No: GT2017-63521
DOI: https://doi.org/10.1115/GT2017-63521
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Topics: Cascades (Fluid dynamics), Chords (Trusses), Turbines, Design, Manufacturing, Stators, Aerodynamics, Computer simulation, Industrial gases, Pressure
Proceedings Papers

Experimental Investigation of Stall Inception and its Propagation in a Contra Rotating Axial Fan Under Radial Inflow Distortion

Tegegn Dejene Toge, A. M. Pradeep
Proc. ASME. GT2017, Volume 2D: Turbomachinery, V02DT46A006, June 26–30, 2017
Paper No: GT2017-63432
DOI: https://doi.org/10.1115/GT2017-63432
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Topics: Inflow, Stall inception, Rotors, Flow (Dynamics), Design, Pressure, Wavelet transforms, Blades, Probes, Stability
Proceedings Papers

Study of Effects of Rotor Tip Tailoring in Axial Flow Compressors

Chaitanya V. Halbe, Yashovardhan S. Chati, Jubin Tom George, A. M. Pradeep, Bhaskar Roy, Hong Yu, Peter Townsend
Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT37A018, June 15–19, 2015
Paper No: GT2015-42520
DOI: https://doi.org/10.1115/GT2015-42520
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Topics: Axial flow, Compressors, Rotors, Clearances (Engineering), Blades, Computational fluid dynamics, Design, Flow (Dynamics), Pressure drop, Simulation results
Proceedings Papers

Influence of Tip Jet Mass Flow and Blowing Rate on the Performance of an Axial Diffuser at Different Inlet Total Pressure Profiles

Rojas Thomas, Markus Schatz, Benjamin Kuschel, Silke Brouwer, A. M. Pradeep, Damian Vogt, Bhaskar Roy
Proc. ASME. GT2015, Volume 2B: Turbomachinery, V02BT40A007, June 15–19, 2015
Paper No: GT2015-43427
DOI: https://doi.org/10.1115/GT2015-43427
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Topics: Diffusers, Flow (Dynamics), Pressure, Computational fluid dynamics, Engineering simulation, Exhaust systems, Inflow, Jets, Outflow, Probes
Journal Articles

Benefits of Nonaxisymmetric Endwall Contouring in a Compressor Cascade With a Tip Clearance

Mahesh K. Varpe, A. M. Pradeep
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. May 2015, 137(5): 051101.
Paper No: FE-14-1378
DOI: https://doi.org/10.1115/1.4028996
Published Online: May 1, 2015
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Topics: Blades, Flow (Dynamics), Pressure, Wakes, Optimization, Computational fluid dynamics, Design, Vortices, Cascades (Fluid dynamics), Clearances (Engineering)