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Ronald D. Flack
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Proceedings Papers

A Flexible Rotor on Flexible Bearing Supports: Part I — Stability

José A. Vázquez, Lloyd E. Barrett, Ronald D. Flack
Proc. ASME. DETC99, Volume 7A: 17th Biennial Conference on Mechanical Vibration and Noise, 977-983, September 12–16, 1999
Paper No: DETC99/VIB-8285
DOI: https://doi.org/10.1115/DETC99/VIB-8285
View Paper titled, A Flexible Rotor on Flexible Bearing Supports: Part I — Stability
Click here to open pdf in another window PDF for A Flexible Rotor on Flexible Bearing Supports: Part I — Stability
Topics: Bearings, Rotors, Stability, Frequency response, Stiffness, Fluid films, Polynomials, Transfer functions
Proceedings Papers

A Flexible Rotor on Flexible Bearing Supports: Part II — Unbalance Response

José A. Vázquez, Lloyd E. Barrett, Ronald D. Flack
Proc. ASME. DETC99, Volume 7A: 17th Biennial Conference on Mechanical Vibration and Noise, 985-990, September 12–16, 1999
Paper No: DETC99/VIB-8286
DOI: https://doi.org/10.1115/DETC99/VIB-8286
View Paper titled, A Flexible Rotor on Flexible Bearing Supports: Part II — Unbalance Response
Click here to open pdf in another window PDF for A Flexible Rotor on Flexible Bearing Supports: Part II — Unbalance Response
Topics: Bearings, Rotors, Frequency response, Stiffness, Fluid films, Polynomials, Transfer functions
Proceedings Papers

Laser Velocimeter Measurements in a Centrifugal Pump With a Synchronously Orbiting Impeller

Ronald J. Beaudoin, Steven M. Miner, Ronald D. Flack
Proc. ASME. GT1990, Volume 1: Turbomachinery, V001T01A087, June 11–14, 1990
Paper No: 90-GT-258
DOI: https://doi.org/10.1115/90-GT-258
View Paper titled, Laser Velocimeter Measurements in a Centrifugal Pump With a Synchronously Orbiting Impeller
Click here to open pdf in another window PDF for Laser Velocimeter Measurements in a Centrifugal Pump With a Synchronously Orbiting Impeller
Topics: Centrifugal pumps, Impellers, Lasers, Velocimeters, Blades, Flow (Dynamics), Design, Pumps, Flux (Metallurgy), Momentum
Proceedings Papers

Turbulence Measurements in a Centrifugal Pump With a Synchronously Orbiting Impeller

Ronald D. Flack, Steven M. Miner, Ronald J. Beaudoin
Proc. ASME. GT1991, Volume 1: Turbomachinery, V001T01A023, June 3–6, 1991
Paper No: 91-GT-070
DOI: https://doi.org/10.1115/91-GT-070
View Paper titled, Turbulence Measurements in a Centrifugal Pump With a Synchronously Orbiting Impeller
Click here to open pdf in another window PDF for Turbulence Measurements in a Centrifugal Pump With a Synchronously Orbiting Impeller
Topics: Centrifugal pumps, Impellers, Turbulence, Flow (Dynamics), Stress, Blades, Design, Lasers, Pumps, Velocimeters
Proceedings Papers

Laser Velocimeter Measurements in the Turbine of an Automotive Torque Converter: Part I — Average Measurements

Klaus Bran, Ronald D. Flack
Proc. ASME. GT1995, Volume 1: Turbomachinery, V001T01A078, June 5–8, 1995
Paper No: 95-GT-292
DOI: https://doi.org/10.1115/95-GT-292
View Paper titled, Laser Velocimeter Measurements in the Turbine of an Automotive Torque Converter: Part I — Average Measurements
Click here to open pdf in another window PDF for Laser Velocimeter Measurements in the Turbine of an Automotive Torque Converter: Part I — Average Measurements
Topics: Lasers, Torque converters, Turbines, Velocimeters, Flow (Dynamics), Blades, Pumps, Shaft angle encoders, Corners (Structural elements), Energy dissipation
Proceedings Papers

Laser Velocimeter Measurements in the Turbine of an Automotive Torque Converter: Part II — Unsteady Measurements

Klaus Bran, Ronald D. Flack
Proc. ASME. GT1995, Volume 1: Turbomachinery, V001T01A079, June 5–8, 1995
Paper No: 95-GT-293
DOI: https://doi.org/10.1115/95-GT-293
View Paper titled, Laser Velocimeter Measurements in the Turbine of an Automotive Torque Converter: Part II — Unsteady Measurements
Click here to open pdf in another window PDF for Laser Velocimeter Measurements in the Turbine of an Automotive Torque Converter: Part II — Unsteady Measurements
Topics: Lasers, Torque converters, Turbines, Velocimeters, Fluctuations (Physics), Pumps, Blades, Flow (Dynamics), Torque, Data acquisition
Proceedings Papers

Developing a Cooperative International Program in Graduate Education and Research

Juan Oliveras, Lloyd E. Barrett, Ronald D. Flack
Proc. ASME. GT1997, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T16A009, June 2–5, 1997
Paper No: 97-GT-313
DOI: https://doi.org/10.1115/97-GT-313
View Paper titled, Developing a Cooperative International Program in Graduate Education and Research
Click here to open pdf in another window PDF for Developing a Cooperative International Program in Graduate Education and Research
Topics: Bearings, Education, Engineers, Flow (Dynamics), Gas turbines, Petrochemicals, Rotordynamics, Students, Turbomachinery
Proceedings Papers

Flexible Bearing Supports, Using Experimental Data

José A. Vázquez, Lloyd E. Barrett, Ronald D. Flack
Proc. ASME. GT2000, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, V004T03A046, May 8–11, 2000
Paper No: 2000-GT-0404
DOI: https://doi.org/10.1115/2000-GT-0404
View Paper titled, Flexible Bearing Supports, Using Experimental Data
Click here to open pdf in another window PDF for Flexible Bearing Supports, Using Experimental Data
Topics: Bearings, Rotors, Anisotropy, Compressors, Fluid films, Polynomials, Stability, Transfer functions
Proceedings Papers

A Multiple Harmonic Open Loop Controller for Hydro/Aerodynamic Force Measurements in Rotating Machinery Using Magnetic Bearings

Daniel O. Baun, Eric H. Maslen, Carl R. Knospe, Ronald D. Flack
Proc. ASME. GT2001, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T04A015, June 4–7, 2001
Paper No: 2001-GT-0023
DOI: https://doi.org/10.1115/2001-GT-0023
View Paper titled, A Multiple Harmonic Open Loop Controller for Hydro/Aerodynamic Force Measurements in Rotating Machinery Using Magnetic Bearings
Click here to open pdf in another window PDF for A Multiple Harmonic Open Loop Controller for Hydro/Aerodynamic Force Measurements in Rotating Machinery Using Magnetic Bearings
Topics: Aerodynamics, Control equipment, Fluid-dynamic forces, Machinery, Magnetic bearings, Rotor vibration, Rotors, Signals, Trajectories (Physics), Vibration
Proceedings Papers

Radial Impeller Forces Using CFD: Part I — Model Development and Validation

Daniel O. Baun, Ronald D. Flack
Proc. ASME. GT2002, Volume 5: Turbo Expo 2002, Parts A and B, 513-520, June 3–6, 2002
Paper No: GT2002-30377
DOI: https://doi.org/10.1115/GT2002-30377
View Paper titled, Radial Impeller Forces Using CFD: Part I — Model Development and Validation
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Topics: Computational fluid dynamics, Impellers, Model development, Engineering simulation, Pumps, Simulation, Flow (Dynamics), Fluids, Laser velocimetry, Water
Proceedings Papers

Radial Impeller Forces Using CFD: Part II — A Comparison Between Compressible and Incompressible Flows

Daniel O. Baun, Ronald D. Flack
Proc. ASME. GT2002, Volume 5: Turbo Expo 2002, Parts A and B, 521-528, June 3–6, 2002
Paper No: GT2002-30378
DOI: https://doi.org/10.1115/GT2002-30378
View Paper titled, Radial Impeller Forces Using CFD: Part II — A Comparison Between Compressible and Incompressible Flows
Click here to open pdf in another window PDF for Radial Impeller Forces Using CFD: Part II — A Comparison Between Compressible and Incompressible Flows
Topics: Computational fluid dynamics, Flow (Dynamics), Impellers, Mach number, Fluids, Engineering simulation, Force measurement, Magnetic bearings, Momentum, Pressure
Proceedings Papers

Effect of Reynolds Number on Performance of a Small Centrifugal Pump

Steven W. Day, Phillip P. Lemire, Ronald D. Flack, James C. McDaniel
Proc. ASME. FEDSM2003, Volume 1: Fora, Parts A, B, C, and D, 1893-1899, July 6–10, 2003
Paper No: FEDSM2003-45686
DOI: https://doi.org/10.1115/FEDSM2003-45686
View Paper titled, Effect of Reynolds Number on Performance of a Small Centrifugal Pump
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Topics: Centrifugal pumps, Reynolds number, Pumps, Flow (Dynamics), Blood, Computer simulation, Fluids, Impellers, Internal flow, Viscosity
Journal Articles

A Flexible Rotor on Flexible Bearing Supports: Stability and Unbalance Response

Jose´ A. Va´zquez, Research Scientist, Assoc. Mem. ASME, Lloyd E. Barrett, Professor, Mem. ASME, Ronald D. Flack, Professor, Mem. ASME
Journal: Journal of Vibration and Acoustics
Article Type: Technical Papers
J. Vib. Acoust. April 2001, 123(2): 137–144.
DOI: https://doi.org/10.1115/1.1355244
Published Online: December 1, 2000
View Article titled, A Flexible Rotor on Flexible Bearing Supports: Stability and Unbalance Response
Click here to open pdf in another window PDF for A Flexible Rotor on Flexible Bearing Supports: Stability and Unbalance Response
Topics: Bearings, Rotors, Stability, Stiffness, Transfer functions, Sensors
Journal Articles

Effect of Relative Impeller-to-Volute Position on Hydraulic Efficiency and Static Radial Force Distribution in a Circular Volute Centrifugal Pump

Daniel O. Baun, Graduate Research Assistant and ROMAC Lab Engineer,, Lutz Ko¨stner, Project Engineer,, Ronald D. Flack, Professor and Department Head,
Journal: Journal of Fluids Engineering
Article Type: Technical Papers
J. Fluids Eng. September 2000, 122(3): 598–605.
DOI: https://doi.org/10.1115/1.1287852
Published Online: May 15, 2000
View Article titled, Effect of Relative Impeller-to-Volute Position on Hydraulic Efficiency and Static Radial Force Distribution in a Circular Volute Centrifugal Pump
Click here to open pdf in another window PDF for Effect of Relative Impeller-to-Volute Position on Hydraulic Efficiency and Static Radial Force Distribution in a Circular Volute Centrifugal Pump
Topics: Centrifugal pumps, Flow (Dynamics), Impellers, Pumps, Uncertainty, Design