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Journal Articles

Condensation on Superhydrophobic Copper Oxide Nanostructures

Ryan Enright, Nenad Miljkovic, Nicholas Dou, Youngsuk Nam, Evelyn N. Wang
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. September 2013, 135(9): 091304.
Paper No: HT-12-1346
https://doi.org/10.1115/1.4024424
Published Online: July 26, 2013
View Article titled, Condensation on Superhydrophobic Copper Oxide Nanostructures
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Topics: Condensation, Drops, Heat transfer, Nanostructures , Copper, Wetting, Water, Nucleation (Physics)
Proceedings Papers

Numerical Study of a Solar Thermophotovoltaic Energy Converter With High Performance 2D Photonic Crystals

Youngsuk Nam, Yi Xiang Yeng, Peter Bermel, Marin Soljačić, Evelyn N. Wang
Proc. ASME. HT2012, Volume 1: Heat Transfer in Energy Systems; Theory and Fundamental Research; Aerospace Heat Transfer; Gas Turbine Heat Transfer; Transport Phenomena in Materials Processing and Manufacturing; Heat and Mass Transfer in Biotechnology; Environmental Heat Transfer; Visualization of Heat Transfer; Education and Future Directions in Heat Transfer, 179-185, July 8–12, 2012
Publisher: American Society of Mechanical Engineers
Paper No: HT2012-58222
https://doi.org/10.1115/HT2012-58222
View Paper titled, Numerical Study of a Solar Thermophotovoltaic Energy Converter With High Performance 2D Photonic Crystals
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Topics: Crystals, Power converters, Solar energy, Design, Emissions, Photons, Cavities, Energy conversion, Energy dissipation, Energy gap
Proceedings Papers

Condensation on Superhydrophobic Copper Oxide Nanostructures

Ryan Enright, Nicholas Dou, Nenad Miljkovic, Youngsuk Nam, Evelyn N. Wang
Proc. ASME. MNHMT2012, ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer, 419-425, March 3–6, 2012
Publisher: American Society of Mechanical Engineers
Paper No: MNHMT2012-75277
https://doi.org/10.1115/MNHMT2012-75277
View Paper titled, Condensation on Superhydrophobic Copper Oxide Nanostructures
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Topics: Condensation, Copper, Nanostructures , Drops, Heat transfer, Energy generation, Nucleation (Physics), Optical microscopy, Oxidation, Scanning electron microscopy
Proceedings Papers

Near-Wall Focusing of Phase Change Micro-Particles for Local Heat Transfer Enhancement

Andrej Lenert, Youngsuk Nam, Matthew W. Thoms, Bekir S. Yilbas, Evelyn N. Wang
Proc. ASME. IMECE2011, Volume 10: Heat and Mass Transport Processes, Parts A and B, 619-626, November 11–17, 2011
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2011-64517
https://doi.org/10.1115/IMECE2011-64517
View Paper titled, Near-Wall Focusing of Phase Change Micro-Particles for Local Heat Transfer Enhancement
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Topics: Heat transfer, Microparticles, Particulate matter, Heat flux, Melting, Computer simulation, Fluids, Geometry, Heat capacity, Laminar flow
Proceedings Papers

Heat Transfer Performance of Superhydrophilic Nanostructured Cu Micropost Wicks for Micro Heat Pipes

Youngsuk Nam, Stephen Sharratt, Y. Sungtaek Ju
Proc. ASME. IMECE2010, Volume 4: Electronics and Photonics, 55-60, November 12–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2010-40242
https://doi.org/10.1115/IMECE2010-40242
View Paper titled, Heat Transfer Performance of Superhydrophilic Nanostructured Cu Micropost Wicks for Micro Heat Pipes
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Topics: Heat pipes, Heat transfer, Critical heat flux, Heat transfer coefficients, Thermal management, Copper, Density, Design, Electronics, Experimental methods
Proceedings Papers

Performance Modeling of Micropost Wicks for Micro Heat Pipes at Low Heat Fluxes

Stephen Sharratt, Youngsuk Nam, Y. Sungtaek Ju
Proc. ASME. IMECE2010, Volume 4: Electronics and Photonics, 61-67, November 12–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2010-40719
https://doi.org/10.1115/IMECE2010-40719
View Paper titled, Performance Modeling of Micropost Wicks for Micro Heat Pipes at Low Heat Fluxes
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Topics: Flux (Metallurgy), Heat, Heat pipes, Modeling, Heat transfer, Fluids, Equilibrium (Physics), Geometry, Heat transfer coefficients, Thin films
Journal Articles

Characterization and Modeling of the Heat Transfer Performance of Nanostructured Cu Micropost Wicks

Youngsuk Nam, Stephen Sharratt, Gilhwan Cha, Y. Sungtaek Ju
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. October 2011, 133(10): 101502.
https://doi.org/10.1115/1.4004168
Published Online: August 11, 2011
View Article titled, Characterization and Modeling of the Heat Transfer Performance of Nanostructured Cu Micropost Wicks
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Topics: Copper, Heat, Heat pipes, Heat transfer, Heat transfer coefficients, Modeling, Oxidation, Shapes, Temperature, Semiconductor devices
Proceedings Papers

Liquid Supply and Heat Transfer Performance of Sintered Cu Monolayer Wicks for Phase Change Heat Transfer Applications

Stephen Sharratt, Youngsuk Nam, Y. Sungtaek Ju
Proc. ASME. AJTEC2011, ASME/JSME 2011 8th Thermal Engineering Joint Conference, T10124, March 13–17, 2011
Publisher: American Society of Mechanical Engineers
Paper No: AJTEC2011-44356
https://doi.org/10.1115/AJTEC2011-44356
View Paper titled, Liquid Supply and Heat Transfer Performance of Sintered Cu Monolayer Wicks for Phase Change Heat Transfer Applications
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Topics: Heat transfer, Copper powders, Critical heat flux, Flux (Metallurgy), Heat, Heat pipes, Sintering, Thermal conductivity, Thermal resistance, Vapors
Proceedings Papers

The Effect of Surface Treatment on the Drag Characteristics in Laminar Flow

Chan Byon, Youngsuk Nam, Sung Jin Kim, Yongho Sungtaek Ju
Proc. ASME. MNHMT2009, ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 3, 315-321, December 18–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: MNHMT2009-18490
https://doi.org/10.1115/MNHMT2009-18490
View Paper titled, The Effect of Surface Treatment on the Drag Characteristics in Laminar Flow
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Topics: Drag (Fluid dynamics), Laminar flow, Surface finishing, Surface roughness
Journal Articles

Experimental and Numerical Study of Single Bubble Dynamics on a Hydrophobic Surface

Youngsuk Nam, Jinfeng Wu, Gopinath Warrier, Y. Sungtaek Ju
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. December 2009, 131(12): 121004.
https://doi.org/10.1115/1.3216038
Published Online: October 15, 2009
View Article titled, Experimental and Numerical Study of Single Bubble Dynamics on a Hydrophobic Surface
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Topics: Bubbles, Dynamics (Mechanics), Semiconductor wafers
Proceedings Papers

Comparative Study of Copper Oxidation Schemes and Their Effects on Surface Wettability

Youngsuk Nam, Y. Sungtaek Ju
Proc. ASME. IMECE2008, Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C, 1833-1838, October 31–November 6, 2008
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2008-67492
https://doi.org/10.1115/IMECE2008-67492
View Paper titled, Comparative Study of Copper Oxidation Schemes and Their Effects on Surface Wettability
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Topics: Copper, Oxidation, Nanostructures , Atomic force microscopy, Heat transfer, Heating, Scanning electron microscopy, Surface roughness, Temperature, X-ray diffraction
Proceedings Papers

Bubble Nucleation on Nanoscopically Smooth Hydrophobic Islands

Youngsuk Nam, Y. Sungtaek Ju
Proc. ASME. IMECE2008, Volume 13: Nano-Manufacturing Technology; and Micro and Nano Systems, Parts A and B, 567-571, October 31–November 6, 2008
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2008-67483
https://doi.org/10.1115/IMECE2008-67483
View Paper titled, Bubble Nucleation on Nanoscopically Smooth Hydrophobic Islands
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Topics: Bubbles, Nucleation (Physics), Water, Photolithography, Pool boiling, Silicon
Proceedings Papers

Single Bubble Dynamics on a Hydrophobic Surface

Youngsuk Nam, Gopinath Warrier, Jinfeng Wu, Y. Sungtaek Ju
Proc. ASME. HT2007, ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, Volume 3, 687-690, July 8–12, 2007
Publisher: American Society of Mechanical Engineers
Paper No: HT2007-32690
https://doi.org/10.1115/HT2007-32690
View Paper titled, Single Bubble Dynamics on a Hydrophobic Surface
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Topics: Bubbles, Dynamics (Mechanics), Cavities, Nucleation (Physics), Silicon, Cycles, Microscopy, Subcooling, Surface roughness, Water
Proceedings Papers

Experimental and Numerical Study of Single Bubble Dynamics on a Hydrophobic Surface

Youngsuk Nam, Gopinath Warrier, Jinfeng Wu, Y. Sungtaek Ju
Proc. ASME. IMECE2007, Volume 8: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A and B, 301-307, November 11–15, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2007-42461
https://doi.org/10.1115/IMECE2007-42461
View Paper titled, Experimental and Numerical Study of Single Bubble Dynamics on a Hydrophobic Surface
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Topics: Bubbles, Dynamics (Mechanics), Cavities, Computer simulation, Nucleation (Physics), Boiling, Cycles, Energy harvesting, Heat transfer, Microactuators