Session: K20-05: APPLICATIONS OF COMPUTATIONAL HEAT TRANSFER III

Paper Number: 125237

125237 - Reduced Order Design Optimization Model of Ribbed Channels Based on Pressure Drop and Heat Transfer 

Abstract: 

Enhancing convection is one of the main interests in many engineering fields including electronics cooling, gas turbine blade cooling, and cooling channels in a wide range of equipment. Among the many available approaches, passive methods are commonly preferred for their lower power demand compared to other methods. Increasing surface roughness with fins is one of the attractive passive methods to create naturally generated vortices for enhanced transport at the expense of some pressure loss. However, pressure drop of the fluid needs to be minimized in many applications such as cooling channels. Here we propose an optimized ribbed channel design considering pressure loss as well as heat transfer along the channel. We use a surrogate model with Latin hypercube sampling along with OpenFOAM to model and investigate the heat transfer performance of different rib designs. Results of the optimization study show the effect of different rib geometries on pressure loss and heat transfer coefficient. Beyond the specific designs considered, the approach presented, using an opensource environment with a reduced order model, provides a cost and time efficient method for further cooling channel design optimization. With the aid of this model, optimized channel designs with different desired specifications can be generated easily.

Presenting Author: Gokce Ozkazanc Guc University of California, Merced

Presenting Author Biography: Gokce Ozkazanc Guc is a Ph.D. candidate in Mechanical Engineering Department at UC Merced. She works in Palko Research Group advised by Prof. James Palko. Her research interests are transport in porous media and heat transfer. Before coming to UC Merced, She received her B.S. and M.Sc. degrees in the Department of Mechanical Engineering at Bilkent University, and had chance to work in Micro and Nano Integrated Fluids Lab (MinILab) under the supervision of Prof. Yegan Erdem Ercan with a focus on droplet dynamics, phase change and computational fluid dynamics. She is an ambitious researcher as well as a science fiction lover.

Authors:

Gokce Ozkazanc Guc University of California, Merced
Venkattraman Ayyaswamy University of California, Merced
James Palko University of California, Merced