NDLI: Numerical Investigation of Heat Transfer Characteristics of a Novel Wavy-Tapered Microchannel Heat Sink

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Volume 1: Heat Transfer in Energy Systems; Thermophysical Properties; Theory and Fundamentals in Heat Transfer; Nanoscale Thermal Transport; Heat Transfer in Equipment; Heat Transfer in Fire and Combustion; Transport Processes in Fuel Cells and Heat Pipes; Boiling and Condensation in Macro, Micro and Nanosystems

Volume 2: Heat Transfer in Multiphase Systems; Gas Turbine Heat Transfer; Manufacturing and Materials Processing; Heat Transfer in Electronic Equipment; Heat and Mass Transfer in Biotechnology; Heat Transfer Under Extreme Conditions; Computational Heat Transfer; Heat Transfer Visualization Gallery; General Papers on Heat Transfer; Multiphase Flow and Heat Transfer; Transport Phenomena in Manufacturing and Materials Processing

Effect of Entrainment on Liquid Film Dryout in Vertical Upward Annular Flow

An Experimental Study of Boiling Heat Transfer During Quenching of Nanofluids With Carbon Nanotubes of Various Sizes

Flow Patterns During Flow Boiling Instability in Silicon-Based Pin-Fin Microchannels

Bubble Behavior at an Uneven Wall

Heat Transfer and Pressure Drop Characteristics of Condensation for R410A in a 3.78mm Circular Tube Under Normal and Micro Gravity

Heat Transfer Analysis of Phase Change Microcapsules With Thin Film Evaporation

Numerical Modelling of Natural Convection Driven Melting for an Inclined/Finned Rectangular Enclosure

Turbulent Double-Diffusive Free Convection in a Porous Square Cavity Simulated With the Two Temperature Approach

Experimental Investigation of Evaporation Heat Transfer Inside Horizontal Micro-Fin Tubes

Non-Boiling Heat Transfer of Air/Water Mist Flow in a Square Duct With Orthogonal Ribs

Experimental Investigation on Cryogenic Line Chill-Down Process by Using Liquid Nitrogen

Quantum Dot Temperature Sensor Ab Initio Test: Droplet Vaporization Heat Transfer

Experimental and Numerical Characterization of Droplet-Induced Spreading-Splashing Transition in Surface Cooling

Effect of Heat Source Geometry on the Transient Heat Transfer During Melting Process of a PCM

Visualization of Ice Formation Modes and Flow Blockage During Freezing of Water Flowing in a Microchannel

An Experimental Study of Inward Solidification of Nano-Enhanced Phase Change Materials (NePCM) Inside a Spherical Capsule

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Numerical Investigation of the Freezing of a Phase Change Material in a Thermal Storage Device With an Embedded Evaporator

Numerical Investigation of the Melting of a Phase Change Material in a Thermal Storage Device With Embedded Air Flow Channels

Transient Analysis of a Cylindrical Heat Pipe Considering Different Wick Structures

Metrics for Quantifying Surface Wetting Effects on Vaporization Processes at Nanostructured Hydrophilic Surfaces

Modeling the Performance of Bi-Textured Micropillar Array as a Wicked Evaporator

A Computational Study of Thin Film Dynamics on Micro-Structured Surfaces

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LES Simulations of Rotating Two-Pass Ribbed Duct With Coriolis and Centrifugal Buoyancy Forces at Re=100,000

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Flow and Heat Transfer Study of an Impinging Piezoelectric Fan Over a Vertical Surface

Numerical Evaluation of Multiple Phase Change Materials for Pulsed Electronics Applications

Analysis of Gas Diffusion-Induced Cassie to Wenzel State Transition on a Structured Surface

A Roadmap for Building Thermal Models for AlGaN/GaN HEMTs: Simplifications and Beyond

Laser Induced Implantation Doping of Glass Substrates

Design of a Magnetic Cooling Device Using Gadolinium Alloy and Permanent Magnets

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A Numerical Study on 2-D Flow and Heat Transfer in a Natural Gas Heater

Heat Transfer Characteristics of Aviation Kerosene in Vertical Upward High Flux Tubes at Supercritical Pressure

Cryogenic Temperature Monitoring via Optical PDMS Sensors

Molecular Dynamics Simulation on Diffusion Welding Between Cu and Al Under Different Pressures and Roughnesses

Experimental Analysis and Investigation for Thermal Performance of Ventilated Disc Brake Rotor Using CFD

Numerical Simulation of Heat Transfer and Pressure Drop Characteristics of Internal Microfin Tubes

Analysis on Impact of Turbulence Parameters and Swirl Angle Variation on Isothermal Gas Turbine Combustor Flows

Mixed Convection Heat Transfer in an Annulus With Rotating Inner Cylinder

Modeling of Steel Slab Reheating Process in a Walking Beam Reheating Furnace

Numerical Simulation for Wind Turbine Wake and Effects From Different Atmospheric Boundary Conditions

Heat Transfer in Non-Newtonian Laminar Impinging Jets

The Heat Transfer Behavior of a Suddenly Expanding Viscoplastic Flow Field

Numerical and Experimental Study of Lead-Acid Battery

Application of Inverse Heat Conduction Method and Method of Lines in Spray Cooling of Heated Surface

Reduced Order Modeling Applied to the Discrete Ordinates Method for Radiation Heat Transfer in Participating Media

Hybrid Ballistic-Diffusive Solution of the Frequency-Dependent Phonon Boltzmann Transport Equation

Transient Two-Dimensional Heat Conduction Problem With Partial Heating Near Corners

Lattice Boltzmann Method Simulation of 3-D Melting Using Double MRT Model With Interfacial Tracking Method

A Numerical Parametric Study of Flow and Heat Transfer in Circular and Zig-Zag Square Microchannel Heat Sinks

A Novel Machine-Learning Aided Optimization Technique for Material Design: Application in Thin Film Solar Cells

Effect of Dual Frequency Ultrasound on the Bubble Formation in a Capillary Tube

Energy Saving Effect of Different Wall Structures Based on Intermittent Energy Use Characteristics in a Hot Summer and Cold Winter Zone

Numerical Study on Natural Convection From a Row of Heated Pipes Embedded in an Air-Filled Cavity

Heat Sink Performance Improvement by Way of Nanofluids

Numerical Investigation of Flow Structure and Heat Transfer Produced by a Single Highly Confined Bubble in a Pressure-Driven Channel Flow

Gas Phase Distribution Effects on Heat Transfer in Upward Vertical Bubbly Channel Flows

Free Convection in Viscoplastic Fluid due to Partial Bi-Heating From Bottom

Simulation of a Yield Stress Influence on Nusselt Number in Turbulent Flow of Kaolin Slurry

Transient Electrohydrodynamic Manipulation of Particles on the Surface of a Drop

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Numerical Investigation of Heat Transfer Characteristics of a Novel Wavy-Tapered Microchannel Heat Sink

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Eltaweel, Ahmed Baobeid, Abdulla Tompkins, Brian Hassan, Ibrahim
Copyright Year	2016
Abstract	In the present study, a multi-variable comparative study of the effect of microchannel heat sink configurations on their thermal performance is conducted by numerically simulating three-dimensional fluid flow and heat transfer in multiple microchannel heat sink configurations. Thermal analysis is performed to investigate a novel wavy-tapered channel configuration of microchannel heat sinks with directionally alternating coolant flow for high-end electronics cooling. Simulations were conducted at different tapering and aspect ratios, focusing on how effectively previously proven geometric enhancements combine with one another in novel ways. Results confirmed the superiority of wavy channels over straight channels due to the development of the secondary flow (Dean Vortices), which enhance the advection mixing and consequently the overall heat sink thermal performance. Moreover, width-tapering of the wavy channel showed improved channel performance in terms of thermal resistance compared to untapered wavy channels. Almost 10% improvement in thermal resistance is obtained with width tapering. Also, the thermal performance showed a strong dependency on channel aspect ratio. Overall performance suggests that optimum tapering and aspect ratio conditions exist. The numerical investigations are then extended to novel heat sink design includes wavy tapered microchannels with directionally alternating flow to improve heat sink thermal performance. A 15% reduction in thermal resistance and highly improved substrate surface temperature distribution uniformity are obtained using alternating flow compared to corresponding parallel flow channels.
Sponsorship	Heat Transfer Division
File Format	PDF
ISBN	9780791850336
DOI	10.1115/HT2016-7432
Volume Number	Volume 2: Heat Transfer in Multiphase Systems; Gas Turbine Heat Transfer; Manufacturing and Materials Processing; Heat Transfer in Electronic Equipment; Heat and Mass Transfer in Biotechnology; Heat Transfer Under Extreme Conditions; Computational Heat Transfer; Heat Transfer Visualization Gallery; General Papers on Heat Transfer; Multiphase Flow and Heat Transfer; Transport Phenomena in Manufacturing and Materials Processing
Conference Proceedings	ASME 2016 Heat Transfer Summer Conference collocated with the ASME 2016 Fluids Engineering Division Summer Meeting and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels
Language	English
Publisher Date	2016-07-10
Publisher Place	Washington, DC, USA
Access Restriction	Subscribed
Subject Keyword	Temperature distribution Fluid dynamics Computer cooling Flow (dynamics) Microchannels Design Thermal resistance Simulation Vortices Coolants Engineering simulation Thermal analysis Heat sinks Heat transfer
Content Type	Text
Resource Type	Article

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