1-20 of 31
Approximation
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Articles

Accounting for Circumferential Flow Nonuniformity in a Multistage Axial Compressor

Fangyuan Lou, Douglas R. Matthews, Nicholas J. Kormanik, III, Nicole L. Key
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2023, 145(7): 071016.
Paper No: TURBO-21-1151
https://doi.org/10.1115/1.4056933
Published Online: March 6, 2023
View Article titled, Accounting for Circumferential Flow Nonuniformity in a Multistage Axial Compressor
Open the PDF for Accounting for Circumferential Flow Nonuniformity in a Multistage Axial Compressor in another window
Topics: Compressors, Flow (Dynamics), Pressure, Stators, Approximation, Wakes, Annulus
Journal Articles

Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data—Part 1: Methodology and Sensitivity Analysis

Fangyuan Lou, Nicole L. Key
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2021, 143(8): 081002.
Paper No: TURBO-20-1349
https://doi.org/10.1115/1.4050433
Published Online: April 26, 2021
View Article titled, Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data—Part 1: Methodology and Sensitivity Analysis
Open the PDF for Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data—Part 1: Methodology and Sensitivity Analysis in another window
Topics: Approximation, Compressors, Errors, Flow (Dynamics), Particle swarm optimization, Probes, Signals, Wavelets, Sensitivity analysis, Design
Journal Articles

Reconstructing Compressor Nonuniform Circumferential Flow Field From Spatially Undersampled Data—Part 2: Practical Application for Experiments

Fangyuan Lou, Douglas R. Matthews, Nicholas J. Kormanik, III, Nicole L. Key
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2021, 143(8): 081003.
Paper No: TURBO-20-1350
https://doi.org/10.1115/1.4050434
Published Online: April 26, 2021
View Article titled, Reconstructing Compressor Nonuniform Circumferential Flow Field From Spatially Undersampled Data—Part 2: Practical Application for Experiments
Open the PDF for Reconstructing Compressor Nonuniform Circumferential Flow Field From Spatially Undersampled Data—Part 2: Practical Application for Experiments in another window
Topics: Approximation, Compressors, Diffusers, Flow (Dynamics), Pressure, Wavelets, Stators
Journal Articles

Reducing Instrumentation Errors Caused by Circumferential Flow-Field Variations in Multistage Axial Compressors

M. Chilla, G. Pullan, S. Gallimore
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2020, 142(9): 091006.
Paper No: TURBO-20-1033
https://doi.org/10.1115/1.4047610
Published Online: August 24, 2020
View Article titled, Reducing Instrumentation Errors Caused by Circumferential Flow-Field Variations in Multistage Axial Compressors
Open the PDF for Reducing Instrumentation Errors Caused by Circumferential Flow-Field Variations in Multistage Axial Compressors in another window
Topics: Compressors, Errors, Flow (Dynamics), Pressure, Probes, Signals, Stators, Temperature, Wakes, Computational fluid dynamics
Journal Articles

Analysis of the Thermomechanical Stresses in Double-Wall Effusion Cooled Systems

Elsiddig Elmukashfi, Alexander V. Murray, Peter T. Ireland, Alan C. F. Cocks
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2020, 142(5): 051002.
Paper No: TURBO-19-1181
https://doi.org/10.1115/1.4046268
Published Online: April 8, 2020
View Article titled, Analysis of the Thermomechanical Stresses in Double-Wall Effusion Cooled Systems
Open the PDF for Analysis of the Thermomechanical Stresses in Double-Wall Effusion Cooled Systems in another window
Topics: Heat transfer coefficients, Skin, Stress, Temperature, Reynolds number, Thermomechanics, Cooling systems, Approximation, Boundary-value problems, Computational fluid dynamics
Journal Articles

Spatial Flow-Field Approximation Using Few Thermodynamic Measurements—Part I: Formulation and Area Averaging

Pranay Seshadri, Duncan Simpson, George Thorne, Andrew Duncan, Geoffrey Parks
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. February 2020, 142(2): 021006.
Paper No: TURBO-19-1155
https://doi.org/10.1115/1.4045781
Published Online: January 24, 2020
View Article titled, Spatial Flow-Field Approximation Using Few Thermodynamic Measurements—Part I: Formulation and Area Averaging
Open the PDF for Spatial Flow-Field Approximation Using Few Thermodynamic Measurements—Part I: Formulation and Area Averaging in another window
Topics: Approximation, Engines, Flow (Dynamics), Temperature, Testing, Modeling, Errors, Temperature measurement
Journal Articles

Machine-Learnt Turbulence Closures for Low-Pressure Turbines With Unsteady Inflow Conditions

H. D. Akolekar, R. D. Sandberg, N. Hutchins, V. Michelassi, G. Laskowski
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2019, 141(10): 101009.
Paper No: TURBO-18-1305
https://doi.org/10.1115/1.4043907
Published Online: September 30, 2019
View Article titled, Machine-Learnt Turbulence Closures for Low-Pressure Turbines With Unsteady Inflow Conditions
Open the PDF for Machine-Learnt Turbulence Closures for Low-Pressure Turbines With Unsteady Inflow Conditions in another window
Topics: Errors, Flow (Dynamics), Physics, Turbulence, Wakes, Inflow, Approximation, Locks (Waterways), Model development, Pressure
Journal Articles

Fast Conjugate Heat Transfer Simulation of Long Transient Flexible Operations Using Adaptive Time Stepping

R. Maffulli, L. He, P. Stein, G. Marinescu
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. September 2018, 140(9): 091005.
Paper No: TURBO-18-1151
https://doi.org/10.1115/1.4040997
Published Online: August 28, 2018
View Article titled, Fast Conjugate Heat Transfer Simulation of Long Transient Flexible Operations Using Adaptive Time Stepping
Open the PDF for Fast Conjugate Heat Transfer Simulation of Long Transient Flexible Operations Using Adaptive Time Stepping in another window
Topics: Annulus, Errors, Flow (Dynamics), Fluids, Heat transfer, Modeling, Natural convection, Simulation, Temperature, Transients (Dynamics)
Journal Articles

The Effect of Real Gas Approximations on S-CO 2 Compressor Design

Jekyoung Lee, Seong Kuk Cho, Jeong Ik Lee
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. May 2018, 140(5): 051007.
Paper No: TURBO-17-1208
https://doi.org/10.1115/1.4038879
Published Online: April 6, 2018
View Article titled, The Effect of Real Gas Approximations on S-CO 2 Compressor Design
Open the PDF for The Effect of Real Gas Approximations on S-CO 2 Compressor Design in another window
Topics: Approximation, Compressors, Design, Supercritical carbon dioxide, Errors
Journal Articles

Autonomous Uncertainty Quantification for Discontinuous Models Using Multivariate Padé Approximations

Richard Ahlfeld, Francesco Montomoli, Mauro Carnevale, Simone Salvadori
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. April 2018, 140(4): 041004.
Paper No: TURBO-17-1062
https://doi.org/10.1115/1.4038826
Published Online: January 23, 2018
View Article titled, Autonomous Uncertainty Quantification for Discontinuous Models Using Multivariate Padé Approximations
Open the PDF for Autonomous Uncertainty Quantification for Discontinuous Models Using Multivariate Padé Approximations in another window
Topics: Approximation, Computational fluid dynamics, Errors, Shock (Mechanics), Uncertainty quantification, Film cooling, Polynomials
Journal Articles

A Single Formulation for Uncertainty Propagation in Turbomachinery: SAMBA PC

Richard Ahlfeld, Francesco Montomoli
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. November 2017, 139(11): 111007.
Paper No: TURBO-16-1184
https://doi.org/10.1115/1.4037362
Published Online: August 23, 2017
View Article titled, A Single Formulation for Uncertainty Propagation in Turbomachinery: SAMBA PC
Open the PDF for A Single Formulation for Uncertainty Propagation in Turbomachinery: SAMBA PC in another window
Topics: Algorithms, Approximation, Computational fluid dynamics, Diffusers, Errors, Fittings, Gas turbines, Manufacturing, Polynomials, Simulation
Journal Articles

Cooling Optimization Theory—Part I: Optimum Wall Temperature, Coolant Exit Temperature, and the Effect of Wall/Film Properties on Performance

Benjamin Kirollos, Thomas Povey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. August 2016, 138(8): 081002.
Paper No: TURBO-15-1289
https://doi.org/10.1115/1.4032612
Published Online: March 15, 2016
View Article titled, Cooling Optimization Theory—Part I: Optimum Wall Temperature, Coolant Exit Temperature, and the Effect of Wall/Film Properties on Performance
Open the PDF for Cooling Optimization Theory—Part I: Optimum Wall Temperature, Coolant Exit Temperature, and the Effect of Wall/Film Properties on Performance in another window
Topics: Coolants, Cooling, Flow (Dynamics), Temperature, Wall temperature, Cooling systems, Approximation, Heat transfer
Journal Articles

The Low Reduced Frequency Limit of Vibrating Airfoils—Part I: Theoretical Analysis

Roque Corral, Almudena Vega
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. February 2016, 138(2): 021004.
Paper No: TURBO-15-1129
https://doi.org/10.1115/1.4031776
Published Online: November 3, 2015
View Article titled, The Low Reduced Frequency Limit of Vibrating Airfoils—Part I: Theoretical Analysis
Open the PDF for The Low Reduced Frequency Limit of Vibrating Airfoils—Part I: Theoretical Analysis in another window
Topics: Airfoils, Approximation, Cycles, Pressure
Journal Articles

Establishing a Methodology for Resolving Convective Heat Transfer From Complex Geometries

Jason K. Ostanek, J. Prausa, A. Van Suetendael, Karen A. Thole
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2010, 132(3): 031014.
https://doi.org/10.1115/1.3144989
Published Online: April 2, 2010
View Article titled, Establishing a Methodology for Resolving Convective Heat Transfer From Complex Geometries
Open the PDF for Establishing a Methodology for Resolving Convective Heat Transfer From Complex Geometries in another window
Topics: Convection, Heat transfer, Temperature, Reynolds number, Design, Cooling, Heat losses, Approximation, Turbulence, Thermocouples
Journal Articles

Effect of Upstream Rotor Vortical Disturbances on the Time-Averaged Performance of Axial Compressor Stators: Part 1—Framework of Technical Approach and Wake–Stator Blade Interactions

T. V. Valkov, C. S. Tan
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 1999, 121(3): 377–386.
https://doi.org/10.1115/1.2841330
Published Online: July 1, 1999
View Article titled, Effect of Upstream Rotor Vortical Disturbances on the Time-Averaged Performance of Axial Compressor Stators: Part 1—Framework of Technical Approach and Wake–Stator Blade Interactions
Open the PDF for Effect of Upstream Rotor Vortical Disturbances on the Time-Averaged Performance of Axial Compressor Stators: Part 1—Framework of Technical Approach and Wake–Stator Blade Interactions in another window
Topics: Blades, Compressors, Rotors, Stators, Wakes, Wake turbulence, Flow (Dynamics), Vortices, Leakage, Approximation
Journal Articles

Effect of Upstream Rotor Vortical Disturbances on the Time-Averaged Performance of Axial Compressor Stators: Part 2—Rotor Tip Vortex/Streamwise Vortex–Stator Blade Interactions

T. V. Valkov, C. S. Tan
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 1999, 121(3): 387–397.
https://doi.org/10.1115/1.2841331
Published Online: July 1, 1999
View Article titled, Effect of Upstream Rotor Vortical Disturbances on the Time-Averaged Performance of Axial Compressor Stators: Part 2—Rotor Tip Vortex/Streamwise Vortex–Stator Blade Interactions
Open the PDF for Effect of Upstream Rotor Vortical Disturbances on the Time-Averaged Performance of Axial Compressor Stators: Part 2—Rotor Tip Vortex/Streamwise Vortex–Stator Blade Interactions in another window
Topics: Blades, Compressors, Rotors, Stators, Vortices, Wake turbulence, Wakes, Flow (Dynamics), Leakage, Approximation
Journal Articles

Navier–Stokes and Potential Calculations of Axial Spacing Effect on Vortical and Potential Disturbances and Gust Response in an Axial Compressor

M.-H. Chung, A. M. Wo
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 1997, 119(3): 472–481.
https://doi.org/10.1115/1.2841146
Published Online: July 1, 1997
View Article titled, Navier–Stokes and Potential Calculations of Axial Spacing Effect on Vortical and Potential Disturbances and Gust Response in an Axial Compressor
Open the PDF for Navier–Stokes and Potential Calculations of Axial Spacing Effect on Vortical and Potential Disturbances and Gust Response in an Axial Compressor in another window
Topics: Compressors, Stators, Rotors, Blades, Chords (Trusses), Approximation, Design
Journal Articles

Evaluation of Flow Field Approximations for Transonic Compressor Stages

D. J. Dorney, O. P. Sharma
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 1997, 119(3): 445–451.
https://doi.org/10.1115/1.2841143
Published Online: July 1, 1997
View Article titled, Evaluation of Flow Field Approximations for Transonic Compressor Stages
Open the PDF for Evaluation of Flow Field Approximations for Transonic Compressor Stages in another window
Topics: Approximation, Compressors, Flow (Dynamics), Blades, Computers, Gas turbines, Rotors, Stators
Journal Articles

Education Committee Best Paper of 1995 Award: Methods of Classical Mechanics Applied to Turbulence Stresses in a Tip Leakage Vortex

J. G. Moore, S. A. Schorn, J. Moore
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 1996, 118(4): 622–629.
https://doi.org/10.1115/1.2840917
Published Online: October 1, 1996
View Article titled, Education Committee Best Paper of 1995 Award: Methods of Classical Mechanics Applied to Turbulence Stresses in a Tip Leakage Vortex
Open the PDF for Education Committee Best Paper of 1995 Award: Methods of Classical Mechanics Applied to Turbulence Stresses in a Tip Leakage Vortex in another window
Topics: Classical mechanics, Education, Leakage, Stress, Turbulence, Vortices, Stress tensors, Approximation, Cascades (Fluid dynamics), Tensors
Journal Articles

Inverse Design of Centrifugal Compressor Vaned Diffusers in Inlet Shear Flows

M. Zangeneh
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 1996, 118(2): 385–393.
https://doi.org/10.1115/1.2836653
Published Online: April 1, 1996
View Article titled, Inverse Design of Centrifugal Compressor Vaned Diffusers in Inlet Shear Flows
Open the PDF for Inverse Design of Centrifugal Compressor Vaned Diffusers in Inlet Shear Flows in another window
Topics: Compressors, Design, Diffusers, Shear flow, Flow (Dynamics), Blades, Design methodology, Geometry, Approximation, Chords (Trusses)