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RISHeat Transfer and Entropy Generation Analysis of Slit Pillar Array in Microchannels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The slit pillar allows a small fraction of the mainstream flow through pillar to disturb the pillar wake zone fluid and eventually enhance the local and global heat transfer performances in microchannels. In this study, ...
Experimental Study of Water Flow and Heat Transfer in Silicon Micro-Pin-Fin Heat Sinks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental study is performed to investigate water flow and heat transfer characteristics in silicon micro-pin-fin heat sinks with various pin–fin configurations and a conventional microchannel, with a length of 25 mm, ...
The UGKS Simulation of Microchannel Gas Flow and Heat Transfer Confined Between Isothermal and Nonisothermal Parallel Plates
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The unified gas kinetic scheme (UGKS) is introduced to simulate the near transition regime gas flow and heat transfer in microchannel confined between isothermal and nonisothermal parallel plates. The argon gas is used and ...
Experimental Comparison of Flow Boiling Heat Transfer in High Aspect Ratio Microchannels With Plain and Grooved Walls
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The dry-out easily occurs on high-aspect ratio microchannel sidewalls due to the decreasing of liquid film thickness. In this paper, the triangular microgrooves possessing the characteristic of evaporating meniscus were ...
Heat Transfer Enhancement for Wake Zone Using Slit Pillar in Microchannel Heat Sinks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Pillar microchannel heat sinks have been widely used for chip cooling, while their overall heat transfer performance is restricted by the stagnation flow in pillar wake zone. In this work, a simple but effective method ...
Thermal Energy Discharging Performance of Metal Foam/Paraffin Composite Phase Change Material at Pore Scale
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this research, thermal energy discharging performance of metal foam/paraffin composite phase change material (MFPC) is investigated at pore scale through direct simulation. A thermal transport model is first developed ...
Numerical Modeling of Multiple Bubbles Condensation in Subcooled Flow Boiling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The understanding of multiple bubbles condensation is of significant importance in developing continuum models for the largescale subcooled flow boiling. The computational fluid dynamics (CFD) modeling for multiple bubbles ...
Pore Scale Investigation of Heat Conduction of High Porosity Open-Cell Metal Foam/Paraffin Composite
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a numerical model employing an approximately realistic three-dimensional (3D) foam structure represented by Weaire–Phelan foam cell is developed to study the steady-state heat conduction of high porosity ...
Flow Patterns During Flow Boiling Instability in Silicon-Based Pin-Fin Microchannels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the flow patterns during water flow boiling instability in pin-fin microchannels were experimentally studied. Three types of pin-fin arrays (in-line/circular pin-fins, staggered/circular pin-fins, and ...
Direct Simulation of Interstitial Heat Transfer Coefficient Between Paraffin and High Porosity Open-Cell Metal Foam
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The interstitial heat transfer coefficient (IHTC) is a key parameter in the two-energy equation model usually employed to investigate the thermal performance of high porosity open-cell metal foam/paraffin composite phase ...