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Proceedings Papers

Measurements of Fully-Developed Augmented Convection in a Symmetrically Grooved Channel

R. A. Wirtz, Feng Huang, Miles Greiner
Proc. ASME. IMECE97, Heat Transfer: Volume 3, 29-35, November 16–21, 1997
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1997-0891
https://doi.org/10.1115/IMECE1997-0891
View Paper titled, Measurements of Fully-Developed Augmented Convection in a Symmetrically Grooved Channel
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Topics: Convection, Flow (Dynamics), Heat exchangers, Heat flux, Reynolds number, Air flow, Dimensions, Heat transfer, Interferometers, Performance evaluation
Proceedings Papers

Simulations of Three-Dimensional Flow and Augmented Heat Transfer in a Symmetrically Grooved Channel With Constant Temperature Walls

M. Greiner, R. J. Faulkner, R. A. Wirtz, P. F. Fischer
Proc. ASME. IMECE97, Heat Transfer: Volume 3, 269-276, November 16–21, 1997
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1997-0918
https://doi.org/10.1115/IMECE1997-0918
View Paper titled, Simulations of Three-Dimensional Flow and Augmented Heat Transfer in a Symmetrically Grooved Channel With Constant Temperature Walls
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Topics: Engineering simulation, Flow (Dynamics), Heat transfer, Simulation, Temperature, Reynolds number, Boundary-value problems, Computer simulation, Convection, Fluids
Proceedings Papers

Laminar Forced Convection Near an Asymmetric Contraction in a Channel

Wayne E. McAuliffe, R. A. Wirtz
Proc. ASME. IMECE97, Heat Transfer: Volume 3, 209-215, November 16–21, 1997
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1997-0911
https://doi.org/10.1115/IMECE1997-0911
View Paper titled, Laminar Forced Convection Near an Asymmetric Contraction in a Channel
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Topics: Flow (Dynamics), Forced convection, Friction, Heat transfer, Reynolds number, Separation (Technology)
Proceedings Papers

Methodology for Designing a Hybrid Thermal Energy Storage Heat Sink

Ning Zheng, R. A. Wirtz
Proc. ASME. IMECE2000, Heat Transfer: Volume 4, 339-346, November 5–10, 2000
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2000-1538
https://doi.org/10.1115/IMECE2000-1538
View Paper titled, Methodology for Designing a Hybrid Thermal Energy Storage Heat Sink
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Topics: Design, Heat sinks, Thermal energy storage, Temperature, Engineering prototypes, Heat, Optimization algorithms, Simulation models, Thermal properties
Proceedings Papers

Thermal Characteristics of a Compact, Passive Thermal Energy Storage Device

Candice A. Bauer, R. A. Wirtz
Proc. ASME. IMECE2000, Heat Transfer: Volume 1, 283-289, November 5–10, 2000
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2000-1395
https://doi.org/10.1115/IMECE2000-1395
View Paper titled, Thermal Characteristics of a Compact, Passive Thermal Energy Storage Device
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Topics: Aluminum, Composite materials, Flat plates, Flow (Dynamics), Heat, Latent heat, Metals, Resistors, Storage, Thermal conductivity
Journal Articles

Mechanistic Study of Subatmospheric Pressure, Subcooled, Flow Boiling of Water on Structured-Porous Surfaces

S. J. Penley, R. A. Wirtz
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. November 2012, 134(11): 112902.
https://doi.org/10.1115/1.4006031
Published Online: September 28, 2012
View Article titled, Mechanistic Study of Subatmospheric Pressure, Subcooled, Flow Boiling of Water on Structured-Porous Surfaces
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Topics: Boiling, Critical heat flux, Flow (Dynamics), Laminates, Pressure, Subcooling, Water, Heat flux, Reynolds number, Vapors
Proceedings Papers

Sub-Atmospheric Pressure Pool Boiling of Water on a Screen Laminate-Enhanced, Wavy-Fin Array

P. J. Laca, R. A. Wirtz
Proc. ASME. IMECE2010, Volume 4: Electronics and Photonics, 263-272, November 12–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2010-40678
https://doi.org/10.1115/IMECE2010-40678
View Paper titled, Sub-Atmospheric Pressure Pool Boiling of Water on a Screen Laminate-Enhanced, Wavy-Fin Array
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Topics: Laminates, Pool boiling, Pressure, Water, Boiling, Bubbles, Copper, Density, Errors, Fins
Journal Articles

Thermal Energy Storage Thermal Response Model With Application to Thermal Management of High Power-Density Hand-Held Electronics

R. A. Wirtz, K. Swanson, M. Yaquinto
Journal: Journal of Electronic Packaging
Publisher: ASME
Article Type: Research Papers
J. Electron. Packag. March 2012, 134(1): 011002.
https://doi.org/10.1115/1.4005915
Published Online: March 19, 2012
View Article titled, Thermal Energy Storage Thermal Response Model With Application to Thermal Management of High Power-Density Hand-Held Electronics
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Topics: Electronics, Heat, Phase transitions, Power density, Skin, Temperature, Thermal energy storage, Transients (Dynamics), Thermal management, Cooling
Proceedings Papers

Sub-Atmospheric Pressure, Subcooled, Flow Boiling of Water on Screen Laminate Enhanced Surfaces

S. J. Penley, R. A. Wirtz
Proc. ASME. IHTC14, 2010 14th International Heat Transfer Conference, Volume 1, 479-488, August 8–13, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IHTC14-22741
https://doi.org/10.1115/IHTC14-22741
View Paper titled, Sub-Atmospheric Pressure, Subcooled, Flow Boiling of Water on Screen Laminate Enhanced Surfaces
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Topics: Boiling, Flow (Dynamics), Laminates, Pressure, Subcooling, Water, Critical heat flux, Reynolds number, Bubbles, Copper
Journal Articles

Correlation of Subatmospheric Pressure, Saturated, Pool Boiling of Water on a Structured-Porous Surface

Sean J. Penley, R. A. Wirtz
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. April 2011, 133(4): 041501.
https://doi.org/10.1115/1.4001628
Published Online: January 6, 2011
View Article titled, Correlation of Subatmospheric Pressure, Saturated, Pool Boiling of Water on a Structured-Porous Surface
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Topics: Boiling, Bubbles, Laminates, Nucleation (Physics), Pressure, Water, Lamination, Heat flux, Pool boiling
Proceedings Papers

Flow Boiling of Isopentane From a Structured-Porous Copper Fin

Zenghui Zhao, R. A. Wirtz
Proc. ASME. ES2009, ASME 2009 3rd International Conference on Energy Sustainability, Volume 1, 951-958, July 19–23, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ES2009-90384
https://doi.org/10.1115/ES2009-90384
View Paper titled, Flow Boiling of Isopentane From a Structured-Porous Copper Fin
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Topics: Boiling, Copper, Flow (Dynamics), Fins, Reynolds number, Flux (Metallurgy), Heat, Pressure
Proceedings Papers

Comparison of LES and RANS Simulations of Turbulent Convection in a Structured Porous Media

J. Gullbrand, R. A. Wirtz
Proc. ASME. HT2005, Heat Transfer: Volume 3, 693-701, July 17–22, 2005
Publisher: American Society of Mechanical Engineers
Paper No: HT2005-72148
https://doi.org/10.1115/HT2005-72148
View Paper titled, Comparison of LES and RANS Simulations of Turbulent Convection in a Structured Porous Media
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Topics: Convection, Engineering simulation, Porous materials, Reynolds-averaged Navier–Stokes equations, Simulation, Turbulence, Shear stress, Computer simulation, Friction, Geometry
Journal Articles

A Hybrid Thermal Energy Storage Device, Part 1: Design Methodology

Ning Zheng, R. A. Wirtz
Journal: Journal of Electronic Packaging
Publisher: ASME
Article Type: Technical Papers
J. Electron. Packag. March 2004, 126(1): 1–7.
https://doi.org/10.1115/1.1646419
Published Online: April 30, 2004
View Article titled, A Hybrid Thermal Energy Storage Device, Part 1: Design Methodology
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Topics: Design, Engineering prototypes, Heat, Heat sinks, Latent heat, Storage, Temperature, Thermal conductivity, Thermal energy storage, Interfacial thermal resistance
Journal Articles

A Hybrid Thermal Energy Storage Device, Part 2: Thermal Performance Figures of Merit

Ning Zheng, R. A. Wirtz
Journal: Journal of Electronic Packaging
Publisher: ASME
Article Type: Technical Papers
J. Electron. Packag. March 2004, 126(1): 8–13.
https://doi.org/10.1115/1.1646420
Published Online: April 30, 2004
View Article titled, A Hybrid Thermal Energy Storage Device, Part 2: Thermal Performance Figures of Merit
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Topics: Design, Heat, Metals, Storage, Thermal energy storage, Temperature
Journal Articles

Three-Dimensional Simulations of Enhanced Heat Transfer in a Flat Passage Downstream From a Grooved Channel

M. Greiner, Professor of Mechanical Engineering,, P. F. Fischer, Mathematician, H. M. Tufo, Assistant Computer Scientist, R. A. Wirtz, Professor of Mechanical Engineering,
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. February 2002, 124(1): 169–176.
https://doi.org/10.1115/1.1418371
Published Online: June 15, 2001
View Article titled, Three-Dimensional Simulations of Enhanced Heat Transfer in a Flat Passage Downstream From a Grooved Channel
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Topics: Flow (Dynamics), Heat transfer, Reynolds number, Simulation, Pressure gradient, Temperature
Journal Articles

Correlation of Fully Developed Heat Transfer and Pressure Drop in a Symmetrically Grooved Channel

R. A. Wirtz, F. Huang, M. Greiner
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. February 1999, 121(1): 236–239.
https://doi.org/10.1115/1.2825957
Published Online: February 1, 1999
View Article titled, Correlation of Fully Developed Heat Transfer and Pressure Drop in a Symmetrically Grooved Channel
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Topics: Forced convection, Heat transfer, Pressure drop
Journal Articles

Thermal Performance of Pin-Fin Fan-Sink Assemblies

R. A. Wirtz, R. Sohal, H. Wang
Journal: Journal of Electronic Packaging
Publisher: ASME
Article Type: Technical Papers
J. Electron. Packag. March 1997, 119(1): 26–31.
https://doi.org/10.1115/1.2792197
Published Online: March 1, 1997
View Article titled, Thermal Performance of Pin-Fin Fan-Sink Assemblies
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Topics: Axial flow, Blades, Corners (Structural elements), Diamonds, Fins, Heat sinks, Heat transfer coefficients, Pressure, Shapes, Thermal resistance
Journal Articles

Comparison of the Cooling Performance of Staggered and In-Line Arrays of Electronic Packages

R. A. Wirtz, D. M. Colban
Journal: Journal of Electronic Packaging
Publisher: ASME
Article Type: Technical Papers
J. Electron. Packag. March 1996, 118(1): 27–30.
https://doi.org/10.1115/1.2792123
Published Online: March 1, 1996
View Article titled, Comparison of the Cooling Performance of Staggered and In-Line Arrays of Electronic Packages
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Topics: Cooling, Electronic packages, Flow (Dynamics), Friction, Heat transfer coefficients, Packaging, Coolants, Heat transfer, Packaging density (Electronics), Pressure drop
Journal Articles

Augmented Heat Transfer in a Recovery Passage Downstream From a Grooved Section: An Example of Uncoupled Heat/Momentum Transport

M. Greiner, R.-F. Chen, R. A. Wirtz
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. May 1995, 117(2): 303–308.
https://doi.org/10.1115/1.2822521
Published Online: May 1, 1995
View Article titled, Augmented Heat Transfer in a Recovery Passage Downstream From a Grooved Section: An Example of Uncoupled Heat/Momentum Transport
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Topics: Heat, Heat transfer, Momentum, Reynolds number, Air flow, Cutting, Flow (Dynamics), Flow instability, Forced convection, Heat exchangers
Journal Articles

Effect of Flow Bypass on the Performance of Longitudinal Fin Heat Sinks

R. A. Wirtz, Weiming Chen, Ronghua Zhou
Journal: Journal of Electronic Packaging
Publisher: ASME
Article Type: Research Papers
J. Electron. Packag. September 1994, 116(3): 206–211.
https://doi.org/10.1115/1.2905687
Published Online: September 1, 1994
View Article titled, Effect of Flow Bypass on the Performance of Longitudinal Fin Heat Sinks
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Topics: Flow (Dynamics), Heat sinks, Heat transfer, Coolants, Cooling, Design, Electronic packages, Forced convection