Session: K9-09: NANOSCALE THERMAL TRANSPORT MODELING AND MACHINE LEARNING I

Paper Number: 132533

132533 - Wicking Characteristics of a Heat Pipe at Nanoscale 

Abstract: 

In this study, we conduct a detailed investigation into the evaporation dynamics of a nanoscale heat pipe, employing molecular dynamics simulations. Traditional simulation approaches for water, such as the classical simple point charge molecular models, are often hindered by computational power requirement, particularly in the context of nanoscale water evaporation. To address this, our research utilizes a coarse-grained water model, offering a more computationally efficient yet robust framework for examining the evaporation characteristics at the nanoscale.

Our methodology involves the construction of opal-like nanostructures composed of copper, over which a thin film of water is applied. We focus on one end of this nanowick, subjecting it to controlled heating to initiate and sustain evaporation. This setup allows for a comprehensive analysis of the continuous evaporation process.

Key findings of our research include quantified metrics such as the mass flow rate of the wick, the efficiency of heat flux removal at the heated end, and detailed insights into the fluid flow dynamics under these conditions. Modeling of the system, boundary conditions, simulation methology and results interpretation will be discussed in detail. We believe that these results not only contribute to a deeper understanding of nanoscale thermal management systems but also pave the way for the development of more efficient cooling technologies leveraging nanoscale phenomena.

Presenting Author: Sumith Yesudasan University of New Haven

Presenting Author Biography: Dr. Sumith Yesudasan, currently serves as an Assistant Professor at the University of New Haven in Connecticut. He earned his PhD in Mechanical and Aerospace Engineering from Syracuse University. With a career that spans over a decade, Dr. Yesudasan has accumulated substantial experience, divided equally between the industry and academia. His five years in the industrial sector are complemented by another five years in academia, where he has held the position of Assistant Professor at various prestigious universities.

Authors:

Sumith Yesudasan University of New Haven