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Ralph J. Volino
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Journal Articles

Experimental Study of Film Cooling With Favorable and Adverse Pressure Gradients

Ralph J. Volino, Matthew C. Gillcrist
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. June 2023, 145(6): 061003.
Paper No: TURBO-22-1195
https://doi.org/10.1115/1.4056205
Published Online: December 6, 2022
View Article titled, Experimental Study of Film Cooling With Favorable and Adverse Pressure Gradients
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Topics: Boundary layers, Film cooling, Flow (Dynamics), Jets, Pressure gradient, Temperature, Heat transfer, Turbulence
Proceedings Papers

A MATLAB Based Set of Functions for Finding Thermodynamic Properties and Solving Gas Turbine and Other Thermodynamics Problems

Ralph J. Volino
Proc. ASME. GT2022, Volume 5: Education; Electric Power; Fans and Blowers, V005T08A004, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82041
https://doi.org/10.1115/GT2022-82041
View Paper titled, A MATLAB Based Set of Functions for Finding Thermodynamic Properties and Solving Gas Turbine and Other Thermodynamics Problems
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Topics: Gas turbines, Matlab, Thermodynamic properties, Thermodynamics, Fluids, Combustion, Disks, Gases, Heat, NASA
Proceedings Papers

Experimental Study of Film Cooling With Favorable and Adverse Pressure Gradients

Ralph J. Volino, Matthew C. Gillcrist
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A001, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78240
https://doi.org/10.1115/GT2022-78240
View Paper titled, Experimental Study of Film Cooling With Favorable and Adverse Pressure Gradients
Open the PDF for Experimental Study of Film Cooling With Favorable and Adverse Pressure Gradients in another window
Topics: Film cooling, Pressure gradient, Flow (Dynamics), Boundary layers, Heat transfer, Heat transfer coefficients, Jets, Particulate matter, Probes, Temperature profiles
Proceedings Papers

Experimental Investigation of the Thermal Plumes in a Thick Layer Cooled From Above

Ralph J. Volino, Geoffrey B. Smith
Proc. ASME. IMECE97, Ocean Engineering, 89-97, November 16–21, 1997
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1997-1248
https://doi.org/10.1115/IMECE1997-1248
View Paper titled, Experimental Investigation of the Thermal Plumes in a Thick Layer Cooled From Above
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Topics: Plumes (Fluid dynamics), Temperature, Fluids, Water, Convection, Hydrodynamics, Low temperature, Particulate matter, Velocity measurement
Journal Articles

Reynolds Number Dependence of Zero Pressure Gradient Turbulent Boundary Layers Including Third-Order Moments and Spatial Correlations

Ralph J. Volino
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. May 2020, 142(5): 051303.
Paper No: FE-19-1637
https://doi.org/10.1115/1.4045997
Published Online: February 4, 2020
View Article titled, Reynolds Number Dependence of Zero Pressure Gradient Turbulent Boundary Layers Including Third-Order Moments and Spatial Correlations
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Topics: Pressure gradient, Reynolds number, Boundary layers, Boundary layer turbulence, Stress, Turbulence
Journal Articles

Control of Tip Leakage in a High-Pressure Turbine Cascade Using Tip Blowing

Ralph J. Volino
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. June 2017, 139(6): 061008.
Paper No: TURBO-16-1176
https://doi.org/10.1115/1.4035509
Published Online: February 7, 2017
View Article titled, Control of Tip Leakage in a High-Pressure Turbine Cascade Using Tip Blowing
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Topics: Blades, Cascades (Fluid dynamics), Cavities, Flow (Dynamics), Jets, Leakage, Leakage flows, Pressure, Pressure drop, Vortices
Proceedings Papers

Control of Tip Leakage in a High Pressure Turbine Cascade Using Tip Blowing

Ralph J. Volino
Proc. ASME. GT2016, Volume 2B: Turbomachinery, V02BT38A019, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56511
https://doi.org/10.1115/GT2016-56511
View Paper titled, Control of Tip Leakage in a High Pressure Turbine Cascade Using Tip Blowing
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Topics: Cascades (Fluid dynamics), High pressure (Physics), Leakage, Turbines, Pressure drop, Blades, Flow (Dynamics), Jets, Pressure, Cavities
Proceedings Papers

Experiments With a New Ribbed Blade Tip and Endwall Geometry on a High Pressure Turbine Blade

Ralph J. Volino
Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT38A041, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-44065
https://doi.org/10.1115/GT2015-44065
View Paper titled, Experiments With a New Ribbed Blade Tip and Endwall Geometry on a High Pressure Turbine Blade
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Topics: Blades, Geometry, High pressure (Physics), Turbine blades, Vortices, Cascades (Fluid dynamics), Leakage, Flow (Dynamics), Pressure drop, Wakes
Proceedings Papers

Experimental and Computational Study of Novel Tip Leakage Mitigation Methods for High Pressure Turbine Blades

Mounir B. Ibrahim, Ralph J. Volino
Proc. ASME. GT2015, Volume 5B: Heat Transfer, V05BT13A027, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-44077
https://doi.org/10.1115/GT2015-44077
View Paper titled, Experimental and Computational Study of Novel Tip Leakage Mitigation Methods for High Pressure Turbine Blades
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Topics: High pressure (Physics), Leakage, Turbine blades, Cascades (Fluid dynamics), NASA, Turbines, Blades, Computational fluid dynamics, Engines, Geometry
Proceedings Papers

An Application of Octant Analysis to Turbulent and Transitional Flow Data

Ralph J. Volino, Terrence W. Simon
Proc. ASME. GT1993, Volume 2: Combustion and Fuels; Oil and Gas Applications; Cycle Innovations; Heat Transfer; Electric Power; Industrial and Cogeneration; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; IGTI Scholar Award, V002T08A004, May 24–27, 1993
Publisher: American Society of Mechanical Engineers
Paper No: 93-GT-072
https://doi.org/10.1115/93-GT-072
View Paper titled, An Application of Octant Analysis to Turbulent and Transitional Flow Data
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Topics: Flow (Dynamics), Turbulence, Boundary layers, Eddies (Fluid dynamics), Boundary layer turbulence, Cascades (Fluid dynamics), Flat plates, Fluids, Heat flux, Kinetic energy
Proceedings Papers

Measurements in a Transitional Boundary Layer With Görtler Vortices

Ralph J. Volino, Terrence W. Simon
Proc. ASME. GT1996, Volume 1: Turbomachinery, V001T01A058, June 10–13, 1996
Publisher: American Society of Mechanical Engineers
Paper No: 96-GT-166
https://doi.org/10.1115/96-GT-166
View Paper titled, Measurements in a Transitional Boundary Layer With Görtler Vortices
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Topics: Boundary layers, Vortices, Turbulence, Flow (Dynamics), Gas turbines, Airfoils, Pressure, Pressure gradient, Reynolds number, Shear (Mechanics)
Proceedings Papers

A New Model for Free-Stream Turbulence Effects on Boundary Layers

Ralph J. Volino
Proc. ASME. GT1997, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T09A015, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-122
https://doi.org/10.1115/97-GT-122
View Paper titled, A New Model for Free-Stream Turbulence Effects on Boundary Layers
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Topics: Boundary layers, Turbulence, Viscosity, Eddies (Fluid dynamics), Diffusion (Physics), Flow (Dynamics), Fluctuations (Physics), Heat transfer, Physics, Pressure gradient
Proceedings Papers

Experimental Study of the Unsteady Aerodynamics in a Linear Cascade With Low Reynolds Number Low Pressure Turbine Blades

Christopher G. Murawski, Rolf Sondergaard, Richard B. Rivir, Kambiz Vafai, Terrence W. Simon, Ralph J. Volino
Proc. ASME. GT1997, Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, V001T03A026, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-095
https://doi.org/10.1115/97-GT-095
View Paper titled, Experimental Study of the Unsteady Aerodynamics in a Linear Cascade With Low Reynolds Number Low Pressure Turbine Blades
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Topics: Aerodynamics, Cascades (Fluid dynamics), Pressure, Reynolds number, Turbine blades, Turbulence, Separation (Technology), Flow (Dynamics), Suction, Shrinkage (Materials)
Proceedings Papers

Wavelet Analysis of Transitional Flow Data Under High Free-Stream Turbulence Conditions

Ralph J. Volino
Proc. ASME. GT1998, Volume 1: Turbomachinery, V001T01A079, June 2–5, 1998
Publisher: American Society of Mechanical Engineers
Paper No: 98-GT-289
https://doi.org/10.1115/98-GT-289
View Paper titled, Wavelet Analysis of Transitional Flow Data Under High Free-Stream Turbulence Conditions
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Topics: Flow (Dynamics), Turbulence, Wavelets, Fluctuations (Physics), Boundary layers, Shear stress, Uncertainty, Emission spectroscopy, Kinetic energy, Signals
Proceedings Papers

Effects of Unsteady Wakes on Flow Through High Pressure Turbine Passages With and Without Tip Gaps

Ralph J. Volino, Christopher D. Galvin, Cody J. Brownell
Proc. ASME. GT2014, Volume 2C: Turbomachinery, V02CT38A056, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-27006
https://doi.org/10.1115/GT2014-27006
View Paper titled, Effects of Unsteady Wakes on Flow Through High Pressure Turbine Passages With and Without Tip Gaps
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Topics: Flow (Dynamics), High pressure (Physics), Turbines, Wakes, Vortices, Pressure, Airfoils, Cascades (Fluid dynamics), Leakage, Chords (Trusses)
Proceedings Papers

Effects of Endwall Boundary Layer Thickness and Blade Tip Geometry on Flow Through High Pressure Turbine Passages

Ralph J. Volino
Proc. ASME. GT2014, Volume 2C: Turbomachinery, V02CT38A058, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-27013
https://doi.org/10.1115/GT2014-27013
View Paper titled, Effects of Endwall Boundary Layer Thickness and Blade Tip Geometry on Flow Through High Pressure Turbine Passages
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Topics: Blades, Boundary layers, Flow (Dynamics), Geometry, High pressure (Physics), Turbines, Wakes, Cascades (Fluid dynamics), Chords (Trusses), Pressure
Proceedings Papers

Secondary Flow Measurements in a Turbine Passage With Endwall Flow Modification

Nicole V. Aunapu, Ralph J. Volino, Karen A. Flack, Ryan M. Stoddard
Proc. ASME. GT2000, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A020, May 8–11, 2000
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0212
https://doi.org/10.1115/2000-GT-0212
View Paper titled, Secondary Flow Measurements in a Turbine Passage With Endwall Flow Modification
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Topics: Flow (Dynamics), Flow measurement, Turbines, Jets, Blades, Vortices, Boundary layers, Cascades (Fluid dynamics), Film cooling, Flow visualization
Proceedings Papers

Measurements in Separated and Transitional Boundary Layers Under Low-Pressure Turbine Airfoil Conditions

Ralph J. Volino, Lennart S. Hultgren
Proc. ASME. GT2000, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A065, May 8–11, 2000
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0260
https://doi.org/10.1115/2000-GT-0260
View Paper titled, Measurements in Separated and Transitional Boundary Layers Under Low-Pressure Turbine Airfoil Conditions
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Topics: Airfoils, Boundary layers, Pressure, Turbines, Turbulence, Separation (Technology), Reynolds number, Bubbles, Pressure gradient, Flat plates
Proceedings Papers

Conditional Sampling in a Transitional Boundary Layer Under High Free-Stream Turbulence Conditions

Ralph J. Volino, Michael P. Schultz, Christopher M. Pratt
Proc. ASME. GT2001, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A066, June 4–7, 2001
Publisher: American Society of Mechanical Engineers
Paper No: 2001-GT-0192
https://doi.org/10.1115/2001-GT-0192
View Paper titled, Conditional Sampling in a Transitional Boundary Layer Under High Free-Stream Turbulence Conditions
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Topics: Boundary layers, Turbulence, Eddies (Fluid dynamics), Shear stress, Modeling, Skin friction (Fluid dynamics), Viscosity
Proceedings Papers

Effects of Concave Curvature on Boundary Layer Transition Under High Free-Stream Turbulence Conditions

Michael P. Schultz, Ralph J. Volino
Proc. ASME. GT2001, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A065, June 4–7, 2001
Publisher: American Society of Mechanical Engineers
Paper No: 2001-GT-0191
https://doi.org/10.1115/2001-GT-0191
View Paper titled, Effects of Concave Curvature on Boundary Layer Transition Under High Free-Stream Turbulence Conditions
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Topics: Boundary layers, Turbulence, Flow (Dynamics), Shear stress, Skin friction (Fluid dynamics)