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Proceedings Papers

Excess Noise From Gas Turbine Exhausts

N. A. Cumpsty
Proc. ASME. GT1975, Volume 1A: General, V01AT01A060, March 2–6, 1975
Publisher: American Society of Mechanical Engineers
Paper No: 75-GT-61
https://doi.org/10.1115/75-GT-61
View Paper titled, Excess Noise From Gas Turbine Exhausts
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Topics: Gas turbines, Noise (Sound), Acoustics, Temperature, Turbines, Blades, Combustion chambers, Engines, Exhaust systems, Flow (Dynamics)
Proceedings Papers

A Simple Model for Compressor Stall Cell Propagation’

N. A. Cumpsty, E. M. Greitzer
Proc. ASME. GT1981, Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, V001T03A018, March 9–12, 1981
Publisher: American Society of Mechanical Engineers
Paper No: 81-GT-73
https://doi.org/10.1115/81-GT-73
View Paper titled, A Simple Model for Compressor Stall Cell Propagation’
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Topics: Compressors, Blades, Flow (Dynamics)
Proceedings Papers

Part-Circumference Casing Treatment and the Effect on Compressor Stall

N. A. Cumpsty
Proc. ASME. GT1989, Volume 1: Turbomachinery, V001T01A110, June 4–8, 1989
Publisher: American Society of Mechanical Engineers
Paper No: 89-GT-312
https://doi.org/10.1115/89-GT-312
View Paper titled, Part-Circumference Casing Treatment and the Effect on Compressor Stall
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Topics: Compressors, Flow (Dynamics), Rotors, Stall inception, Annulus, Blades, Boundary layers, Clearances (Engineering), Transients (Dynamics)
Proceedings Papers

A Method for the Prediction of Supersonic Compressor Blade Performance

C. Freeman, N. A. Cumpsty
Proc. ASME. GT1989, Volume 1: Turbomachinery, V001T01A115, June 4–8, 1989
Publisher: American Society of Mechanical Engineers
Paper No: 89-GT-326
https://doi.org/10.1115/89-GT-326
View Paper titled, A Method for the Prediction of Supersonic Compressor Blade Performance
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Topics: Blades, Compressors, Flow (Dynamics), Momentum, Surges, Approximation, Enthalpy, Flow instability, Mach number, Pressure
Proceedings Papers

Mixing in Axial Flow Compressors: Part I — Test Facilities and Measurements in a Four-Stage Compressor

Y. S. Li, N. A. Cumpsty
Proc. ASME. GT1990, Volume 1: Turbomachinery, V001T01A015, June 11–14, 1990
Publisher: American Society of Mechanical Engineers
Paper No: 90-GT-038
https://doi.org/10.1115/90-GT-038
View Paper titled, Mixing in Axial Flow Compressors: Part I — Test Facilities and Measurements in a Four-Stage Compressor
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Topics: Axial flow, Compressors, Test facilities, Ducts, Machinery, Stators
Proceedings Papers

Tip Leakage Flow in Axial Compressors

J. A. Storer, N. A. Cumpsty
Proc. ASME. GT1990, Volume 1: Turbomachinery, V001T01A034, June 11–14, 1990
Publisher: American Society of Mechanical Engineers
Paper No: 90-GT-127
https://doi.org/10.1115/90-GT-127
View Paper titled, Tip Leakage Flow in Axial Compressors
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Topics: Compressors, Leakage flows, Blades, Clearances (Engineering), Flow (Dynamics), Pressure, Cascades (Fluid dynamics), Chords (Trusses), Leakage, Machinery
Proceedings Papers

Mixing in Axial Flow Compressors: Part II — Measurements in a Single Stage Compressor and a Duct

Y. S. Li, N. A. Cumpsty
Proc. ASME. GT1990, Volume 1: Turbomachinery, V001T01A016, June 11–14, 1990
Publisher: American Society of Mechanical Engineers
Paper No: 90-GT-039
https://doi.org/10.1115/90-GT-039
View Paper titled, Mixing in Axial Flow Compressors: Part II — Measurements in a Single Stage Compressor and a Duct
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Topics: Axial flow, Compressors, Ducts, Flow (Dynamics), Wakes, Blades, Corners (Structural elements), Inlet guide vanes, Turbulent diffusion, Anisotropy
Proceedings Papers

Compressor Blade Boundary Layers: Part 1 — Test Facility and Measurements With No Incident Wakes

Y. Dong, N. A. Cumpsty
Proc. ASME. GT1989, Volume 1: Turbomachinery, V001T01A023, June 4–8, 1989
Publisher: American Society of Mechanical Engineers
Paper No: 89-GT-50
https://doi.org/10.1115/89-GT-50
View Paper titled, Compressor Blade Boundary Layers: Part 1 — Test Facility and Measurements With No Incident Wakes
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Topics: Blades, Boundary layers, Compressors, Test facilities, Wakes, Convection
Proceedings Papers

Stall Inception in Axial Compressors

N. M. McDougall, N. A. Cumpsty, T. P. Hynes
Proc. ASME. GT1989, Volume 1: Turbomachinery, V001T01A034, June 4–8, 1989
Publisher: American Society of Mechanical Engineers
Paper No: 89-GT-63
https://doi.org/10.1115/89-GT-63
View Paper titled, Stall Inception in Axial Compressors
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Topics: Compressors, Stall inception, Rotors, Boundary layers, Clearances (Engineering), Flow (Dynamics), Transients (Dynamics)
Proceedings Papers

Compressor Blade Boundary Layers: Part 2 — Measurements With Incident Wakes

Y. Dong, N. A. Cumpsty
Proc. ASME. GT1989, Volume 1: Turbomachinery, V001T01A024, June 4–8, 1989
Publisher: American Society of Mechanical Engineers
Paper No: 89-GT-51
https://doi.org/10.1115/89-GT-51
View Paper titled, Compressor Blade Boundary Layers: Part 2 — Measurements With Incident Wakes
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Topics: Blades, Boundary layers, Compressors, Wakes, Momentum, Test facilities, Turbulence
Proceedings Papers

Surge Dynamics in a Free-Spool Centrifugal Compressor System

D. A. Fink, N. A. Cumpsty, E. M. Greitzer
Proc. ASME. GT1991, Volume 1: Turbomachinery, V001T01A010, June 3–6, 1991
Publisher: American Society of Mechanical Engineers
Paper No: 91-GT-031
https://doi.org/10.1115/91-GT-031
View Paper titled, Surge Dynamics in a Free-Spool Centrifugal Compressor System
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Topics: Compressors, Dynamics (Mechanics), Surges, Impellers, Compression, Diffusers, Flow (Dynamics), Rotors, Simulation, Turbochargers
Proceedings Papers

Leading Edge Separation Bubbles on Turbomachine Blades

R. E. Walraevens, N. A. Cumpsty
Proc. ASME. GT1993, Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, V001T03A032, May 24–27, 1993
Publisher: American Society of Mechanical Engineers
Paper No: 93-GT-091
https://doi.org/10.1115/93-GT-091
View Paper titled, Leading Edge Separation Bubbles on Turbomachine Blades
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Topics: Blades, Bubbles, Separation (Technology), Turbomachinery, Turbulence, Airfoils, Boundary layers, Compressors, Reynolds number, Shapes
Proceedings Papers

An Approximate Analysis and Prediction Method for Tip Clearance Loss in Axial Compressors

J. A. Storer, N. A. Cumpsty
Proc. ASME. GT1993, Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, V001T03A062, May 24–27, 1993
Publisher: American Society of Mechanical Engineers
Paper No: 93-GT-140
https://doi.org/10.1115/93-GT-140
View Paper titled, An Approximate Analysis and Prediction Method for Tip Clearance Loss in Axial Compressors
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Topics: Clearances (Engineering), Compressors, Flow (Dynamics), Blades, Design, Leakage flows, Cascades (Fluid dynamics), Computational methods, Diffusion (Physics), Entropy
Proceedings Papers

Simulating the Multi-Stage Environment for Single-Stage Compressor Experiments

J. M. M. Place, M. A. Howard, N. A. Cumpsty
Proc. ASME. GT1995, Volume 1: Turbomachinery, V001T01A046, June 5–8, 1995
Publisher: American Society of Mechanical Engineers
Paper No: 95-GT-187
https://doi.org/10.1115/95-GT-187
View Paper titled, Simulating the Multi-Stage Environment for Single-Stage Compressor Experiments
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Topics: Compressors, Design, Flow (Dynamics), Pressure, Rotors, Aerodynamics, Blades, Corners (Structural elements), Machinery, Separation (Technology)
Proceedings Papers

Compressor Blade Boundary Layers in the Presence of Wakes

N. A. Cumpsty, Y. Dong, Y. S. Li
Proc. ASME. GT1995, Volume 1: Turbomachinery, V001T01A108, June 5–8, 1995
Publisher: American Society of Mechanical Engineers
Paper No: 95-GT-443
https://doi.org/10.1115/95-GT-443
View Paper titled, Compressor Blade Boundary Layers in the Presence of Wakes
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Topics: Blades, Boundary layers, Compressors, Wakes, Pressure gradient, Laminar flow, Separation (Technology), Turbulence
Proceedings Papers

An Approximate Method to Obtain Thermodynamic Gas Properties for Use in Gas Turbines

N. A. Cumpsty, A. J. Marquis
Proc. ASME. GT2014, Volume 6: Ceramics; Controls, Diagnostics and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T08A005, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-26205
https://doi.org/10.1115/GT2014-26205
View Paper titled, An Approximate Method to Obtain Thermodynamic Gas Properties for Use in Gas Turbines
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Topics: Gas turbines, Approximation, Combustion, Compressors, Computers, Errors, Gases, Polynomial approximation, Teaching, Turbines
Proceedings Papers

Impeller-Diffuser Interaction in Centrifugal Compressor

Y. K. P. Shum, C. S. Tan, N. A. Cumpsty
Proc. ASME. GT2000, Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, V001T03A004, May 8–11, 2000
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0428
https://doi.org/10.1115/2000-GT-0428
View Paper titled, Impeller-Diffuser Interaction in Centrifugal Compressor
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Topics: Compressors, Diffusers, Impellers, Pressure, Leakage flows, Flow (Dynamics), Geometry, Navier-Stokes equations
Journal Articles

Some Lessons Learned

N. A. Cumpsty
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2010, 132(4): 041018.
https://doi.org/10.1115/1.4001222
Published Online: May 11, 2010
View Article titled, Some Lessons Learned
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Topics: Blades, Compressors, Computational fluid dynamics, Dimensions, Flow (Dynamics), Pressure, Rotors, Leakage, Turbomachinery
Proceedings Papers

Some Lessons Learned

N. A. Cumpsty
Proc. ASME. GT2009, Volume 7: Turbomachinery, Parts A and B, 785-794, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-60368
https://doi.org/10.1115/GT2009-60368
View Paper titled, Some Lessons Learned
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Topics: Computational fluid dynamics, Dimensions, Leakage, Screw threads, Thread
Proceedings Papers

Effects of Bleed Rate and Endwall Location on the Aerodynamic Behaviour of a Circular Hole Bleed Off-Take

B. A. Leishman, N. A. Cumpsty, J. D. Denton
Proc. ASME. GT2004, Volume 5: Turbo Expo 2004, Parts A and B, 631-643, June 14–17, 2004
Publisher: American Society of Mechanical Engineers
Paper No: GT2004-54197
https://doi.org/10.1115/GT2004-54197
View Paper titled, Effects of Bleed Rate and Endwall Location on the Aerodynamic Behaviour of a Circular Hole Bleed Off-Take
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Topics: Aircraft, Blades, Cascades (Fluid dynamics), Compressors, Cooling, Deicing, Design, Flow (Dynamics), Geometry, High pressure (Physics)