Group Title: 7th International Conference on Multiphase Flow - ICMF 2010 Proceedings
Title: 13.2.4 - Novel Study on Heterogeneous Boiling Nucleation with Solid Wall Condition
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Permanent Link: http://ufdc.ufl.edu/UF00102023/00322
 Material Information
Title: 13.2.4 - Novel Study on Heterogeneous Boiling Nucleation with Solid Wall Condition Micro and Nano-Scale Multiphase Flows
Series Title: 7th International Conference on Multiphase Flow - ICMF 2010 Proceedings
Physical Description: Conference Papers
Creator: Li, S.
Bai, B.
Publisher: International Conference on Multiphase Flow (ICMF)
Publication Date: June 4, 2010
 Subjects
Subject: boiling nucleation
vapor embryo
interface thermal resistance
interfacial strength
thermal contact resistance
 Notes
Abstract: The properties of the solid surface and the interactions between solid and liquid phase play an important role in heterogeneous nucleation, which need be focused on from microscopic point of view. In this paper, Molecular Dynamics simulations are employed to study the nucleation phenomena. The effects of solid wall are taken into consideration by means of extra wall potential and extra force in the near wall region. In order to justify the efficiency of this wall effects method, configurations of equilibrium liquid droplets on the solid surface are first studied. Pool boiling simulation results show that the thickness of stable liquid film at the solid surface increases accordingly with the increasing of solid wall effect. The nucleation site locates farther from the wall. The increase of solid wall energy leads to the increase of thermal resistance and decrease of heat flux, which will restrain the boiling nucleation. The interface thermal resistance decrease with the wall superheat although heat flux through the solid-liquid interface increase. Combining the influences of solid wall on the nucleation location and the thermal resistance at the interface, the results of this paper demonstrate that solid wall with great surface energy would restrain boiling nucleation and undermine boiling heat transfer, which are meaningful for theoretical study and engineering applications of boiling process.
General Note: The International Conference on Multiphase Flow (ICMF) first was held in Tsukuba, Japan in 1991 and the second ICMF took place in Kyoto, Japan in 1995. During this conference, it was decided to establish an International Governing Board which oversees the major aspects of the conference and makes decisions about future conference locations. Due to the great importance of the field, it was furthermore decided to hold the conference every three years successively in Asia including Australia, Europe including Africa, Russia and the Near East and America. Hence, ICMF 1998 was held in Lyon, France, ICMF 2001 in New Orleans, USA, ICMF 2004 in Yokohama, Japan, and ICMF 2007 in Leipzig, Germany. ICMF-2010 is devoted to all aspects of Multiphase Flow. Researchers from all over the world gathered in order to introduce their recent advances in the field and thereby promote the exchange of new ideas, results and techniques. The conference is a key event in Multiphase Flow and supports the advancement of science in this very important field. The major research topics relevant for the conference are as follows: Bio-Fluid Dynamics; Boiling; Bubbly Flows; Cavitation; Colloidal and Suspension Dynamics; Collision, Agglomeration and Breakup; Computational Techniques for Multiphase Flows; Droplet Flows; Environmental and Geophysical Flows; Experimental Methods for Multiphase Flows; Fluidized and Circulating Fluidized Beds; Fluid Structure Interactions; Granular Media; Industrial Applications; Instabilities; Interfacial Flows; Micro and Nano-Scale Multiphase Flows; Microgravity in Two-Phase Flow; Multiphase Flows with Heat and Mass Transfer; Non-Newtonian Multiphase Flows; Particle-Laden Flows; Particle, Bubble and Drop Dynamics; Reactive Multiphase Flows
 Record Information
Bibliographic ID: UF00102023
Volume ID: VID00322
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: 1324-Li-ICMF2010.pdf

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