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Pawel J. Przytarski
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Journal Articles

The Impact of Inflow Unsteadiness on Loss Prediction

Pawel J. Przytarski, Davide Lengani, Richard Sandberg
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2025, 147(4): 041014.
Paper No: TURBO-24-1309
https://doi.org/10.1115/1.4067241
Published Online: December 17, 2024
View Article titled, The Impact of Inflow Unsteadiness on Loss Prediction
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Topics: Compressors, Design, Gibbs' equation, Inflow, Pressure, Turbulence, Reynolds number, Flow (Dynamics), Blades, Simulation
Includes: Supplementary data
Proceedings Papers

Optimal Riblets Applied to Gas Turbine Compressor Blades Studied via Direct Numerical Simulation

Melissa Kozul, Massimiliano Nardini, Pawel J. Przytarski, William Solomon, Aamir Shabbir, Richard D. Sandberg
Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A007, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122305
https://doi.org/10.1115/GT2024-122305
View Paper titled, Optimal Riblets Applied to Gas Turbine Compressor Blades Studied via Direct Numerical Simulation
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Topics: Blades, Compressors, Computer simulation, Gas turbines
Proceedings Papers

Turbulence Generation Mechanisms in Compressor Boundary Layers

Matteo Dellacasagrande, Pawel J. Przytarski
Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A045, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128738
https://doi.org/10.1115/GT2024-128738
View Paper titled, Turbulence Generation Mechanisms in Compressor Boundary Layers
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Topics: Boundary layers, Compressors, Turbulence, Flow (Dynamics), Kinetic energy, Fluctuations (Physics), Turbomachinery, Blades, Construction, Engineering simulation
Proceedings Papers

The Impact of Inflow Unsteadiness on Loss Prediction

Pawel J. Przytarski, Davide Lengani, Richard Sandberg
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A016, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127538
https://doi.org/10.1115/GT2024-127538
View Paper titled, The Impact of Inflow Unsteadiness on Loss Prediction
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Topics: Inflow, Pressure, Engineering simulation, Reynolds number, Simulation, Turbulence, Blades, Compressors, Design, Energy budget (Physics)
Journal Articles

The Role of Turbulence Transport in Mechanical Energy Budgets

Pawel J. Przytarski, Davide Lengani, Daniele Simoni, Andrew P. S. Wheeler
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2024, 146(10): 101008.
Paper No: TURBO-24-1006
https://doi.org/10.1115/1.4065287
Published Online: May 8, 2024
View Article titled, The Role of Turbulence Transport in Mechanical Energy Budgets
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Topics: Entropy, Pressure, Turbulence, Inflow, Energy dissipation, Kinetic energy
Proceedings Papers

Direct Numerical Simulation of Riblets Applied to Gas Turbine Compressor Blades at On- and Off-Design Incidences

Melissa Kozul, Massimiliano Nardini, Pawel J. Przytarski, William Solomon, Aamir Shabbir, Richard D. Sandberg
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A006, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101038
https://doi.org/10.1115/GT2023-101038
View Paper titled, Direct Numerical Simulation of Riblets Applied to Gas Turbine Compressor Blades at On- and Off-Design Incidences
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Topics: Blades, Compressors, Computer simulation, Design, Gas turbines
Proceedings Papers

Entropy Loss Breakdown Comparison for LES and RANS of a Transonic Compressor Stage Midspan Section

Till Borcherding, Christoph Bode, Marco Rosenzweig, Pawel J. Przytarski, John Leggett, Richard D. Sandberg
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A032, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102949
https://doi.org/10.1115/GT2023-102949
View Paper titled, Entropy Loss Breakdown Comparison for LES and RANS of a Transonic Compressor Stage Midspan Section
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Topics: Compressors, Entropy, Reynolds-averaged Navier–Stokes equations
Proceedings Papers

The Role of Turbulence Transport in Mechanical Energy Budgets

Pawel J. Przytarski, Davide Lengani, Daniele Simoni, Andrew P. S. Wheeler
Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT36A017, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102767
https://doi.org/10.1115/GT2023-102767
View Paper titled, The Role of Turbulence Transport in Mechanical Energy Budgets
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Topics: Energy budget (Physics), Turbulence, Pressure, Entropy, Inflow, Simulation, Mach number, Reynolds number
Proceedings Papers

Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section Part I: Effect of Inflow Disturbances

Christoph Bode, Pawel J. Przytarski, John Leggett, Richard D. Sandberg
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A011, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81673
https://doi.org/10.1115/GT2022-81673
View Paper titled, Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section Part I: Effect of Inflow Disturbances
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Topics: Compressors, Inflow, Large eddy simulation, Shock (Mechanics), Boundary layers, Rotors, Suction, Flow (Dynamics), Stators, Turbulence
Proceedings Papers

Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section - Part II: Effect of Rotor-Stator Gap

Pawel J. Przytarski, John Leggett, Richard Sandberg, Christoph Bode
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A019, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82474
https://doi.org/10.1115/GT2022-82474
View Paper titled, Highly Resolved Large-Eddy Simulations of a Transonic Compressor Stage Midspan Section - Part II: Effect of Rotor-Stator Gap
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Topics: Compressors, Large eddy simulation, Rotors, Stators, Flow (Dynamics), Blades, Engineering simulation, Simulation, Boundary layers, Design
Journal Articles

Accurate Prediction of Loss Using High Fidelity Methods

Pawel J. Przytarski, Andrew P. S. Wheeler
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2021, 143(3): 031008.
Paper No: TURBO-20-1186
https://doi.org/10.1115/1.4050115
Published Online: March 1, 2021
View Article titled, Accurate Prediction of Loss Using High Fidelity Methods
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Topics: Entropy, Flow (Dynamics), Resolution (Optics), Turbulence, Compressors, Energy dissipation, Pressure
Journal Articles

The Effect of Gapping on Compressor Performance

Pawel J. Przytarski, Andrew P. S. Wheeler
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. December 2020, 142(12): 121006.
Paper No: TURBO-19-1298
https://doi.org/10.1115/1.4047933
Published Online: November 9, 2020
View Article titled, The Effect of Gapping on Compressor Performance
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Topics: Turbulence, Wakes, Compressors
Proceedings Papers

The Effect of Rotor-Stator Gap on Repeating-Stage Compressor Loss

Pawel J. Przytarski, Andrew P. S. Wheeler
Proc. ASME. GT2019, Volume 2A: Turbomachinery, V02AT45A013, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91007
https://doi.org/10.1115/GT2019-91007
View Paper titled, The Effect of Rotor-Stator Gap on Repeating-Stage Compressor Loss
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Topics: Compressors, Rotors, Stators, Blades, Turbulence, Wakes, Energy dissipation, Large eddy simulation, Numerical analysis, Simulation
Proceedings Papers

Accurate Prediction of Loss Using High Fidelity Methods

Pawel J. Przytarski, Andrew P. S. Wheeler
Proc. ASME. GT2018, Volume 2C: Turbomachinery, V02CT42A051, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-77125
https://doi.org/10.1115/GT2018-77125
View Paper titled, Accurate Prediction of Loss Using High Fidelity Methods
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Topics: Aircraft engines, Cascades (Fluid dynamics), Compressors, Energy dissipation, Flow (Dynamics), Physics, Resolution (Optics), Simulation, Turbulence, Vortices