Author: Rebecca Cullion

Mechanical Engineering

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MICROSCALE TRANSPORT ENHANCEMENT LAB

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Welcome to the Microscale Transport Enhancement Lab’s website. The primary focus of our work is improving the heat transfer and fluid flow capabilities of microscale heat sinks. As you can see from the picture, our heat sinks have a unique geometry borrowed from nature. This fractal-like branching channel network allows the heat transfer area to be increased while pressure drops are decreased. Check out our the Research Areas page to see the exciting experimental and computational work we are doing.

Contact Information:

Department of Mechanical Engineering
204 Rogers Hall
Corvallis, OR 97331
Phone: 541.737.7018
Email: Deborah.Pence@oregonstate.edu

Mechanical Engineering

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Research Areas

MICROSCALE TRANSPORT ENHANCEMENT LAB Research Areas

Publications

Bio-inspired fractal-like branching channel networks

Dr. Pence found the answer to a heat transfer problem in nature.

3-D temperature profiles of single phase flow in microchannels

Greg Mouchka uses
confocal microscopy and a dual dye configuration to
generate 3-D temperature profiles.

Numerical optimization of fractal-like branching networks

Kent Enfield is working on a MATLAB program to optimize the fractal-like geometry for heat transfer applications.

High-speed high resolution imaging of two-phase flow in microchannels

Rebecca Cullion is working to quantify local void fraction in the fractal-like device using a Phantom v5.0 high speed camera.

Micro-PIV of single and two-phase flow in fractal-like branching network

Younghoon Kwak uses
micro-PIV methods to determine bubble slip velocities.

E-mail: Deborah.Pence@oregonstate.edu

Mechanical Engineering

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Research Areas

Publications

MICROSCALE TRANSPORT ENHANCEMENT LAB
Publications

Enfield, K.E., Siekas, J.J., and Pence, D.V., 2003
“Laminate Mixing in Microscale Fractal-Like Merging Channel Networks”
Proceedings of the First International Conference on Microchannels and Minichannels
ASME, Rochester, NY, pp. 859-867
Abstract
Enfield, K.E.
“Laminate Mixing in Micro-Scale Fractal-Like Merging Channel Networks”
2003 (Thesis)
Enfield, K.E., Siekas, J.J., and Pence, D.V.
“Laminate Mixing in Micro-Scale Fractal-Like Merging Channel Networks”
Microscale Thermophysical Engineering
Accepted for publication
Abstract
Pence, D. and Enfield, K.
“Inherent Benefits in Microscale Fractal-Like Devices for Enhanced Transport Phenomena”
Design and Nature
2004, Rhodes, Greece
Abstract
Kwak, Y.
“Particle Image Velocimetry Studies of Low Reynolds Number flow in
Branching Flow Networks”
2003 (Thesis)
Alharbi, A.Y., Pence, D.V., and Cullion, R.N.
“Fluid Flow Through Microscale Fractal-Like Branching Channel Networks”
2003, Journal of Fluids Engineering, 125, pp. 1051-1057
Abstract
Alharbi, A.Y., Pence, D.V., and Cullion, R.N.
“Thermal Characteristics of Microscale Fractal-Like Branching Channels”
Journal of Heat Transfer
In press
Abstract
Cullion, R.N., Mouchka, G.A., Pence, D.V., Liburdy, J.A., and Kanury, A.M.
“Ammonia Desorption in Microscale Fractal-Like Branching Flow Networks”
2004, submitted to Proceedings of ASME Heat Transfer-Fluids Engineering
Summer Conference, Charlotte, N.C.
Abstract

E-mail: Deborah.Pence@oregonstate.edu

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