A Physical Model of the Evaporating Meniscus

Mirzamoghadam, A. V.; Catton, I.

doi:10.1115/1.3250452

Cited by 52 publications

(11 citation statements)

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“…It increases as the liquid pool is approached. , Mirzamoghadam and Catton (1988), and Wayner (1989) have examined the motion in the meniscus caused by the heat addition to the solid substrate. In order to prevent bulk or surface (Ast) nucleation, the solid surface temperature is maintained slightly above the saturation temperature.…”

Section: Cb) Dynamic Equilibriummentioning

confidence: 99%

“…slightly above the saturation temperature T. such that no boiling occurs. This problem has been studied by Bressler and Wyatt (1970), Wayner et al (1976), Wayner (1978), Holm and Goplen (1979), Cook et al (1981), , , Mirzamoghadam and Catton (1988), and . We begin by examining the heat transfer rate in the transition region (figure 11.2) and we include the capillary meniscus and liquid motion.…”

Section: Evaporation From Heated Liquid Filmmentioning

confidence: 99%

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Principles of Heat Transfer in Porous Media

Kaviany

1991

Mechanical Engineering Series

827

752

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except for brief excerpts in connection with reviews or scholarly analysis. Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden. The use of general descriptive names, trade names, trademarks, etc., in this publication, even if the former are not especially identified, is not to be taken as a sign that such names, as understood by the Trade Marks and Merchandise Marks Act, may accordingly be used freely by anyone.Camera-ready copy prepared from the author's LaTeX file. 987654321 To my parents Farideh and Morad Series PrefaceMechanical engineering, an engineering discipline born of the needs of the industrial revolution, is once again asked to do its substantial share in the call for in dust rial renewal. The general call is urgent as we face profound issues of productivity and competitiveness that require engineering solutions, among others. The Mechanical Engineering Series is a new series, featuring graduate texts and research monographs, intended to address the need for information in contemporary areas of mechanical engineering.The series is conceived as a comprehensive one that will cover a broad range of concentrations important to mechanical engineering graduate education and research. We are fortunate to have a distinguished roster of consulting editors, each an expert in one of the areas of concentration. The names of the consulting editors are listed on the first page of the volume. PrefaceThis monograph aims at providing, through integration of available theoretical and empirical treatments, the differential conservation equations and the associated constitutive equations required for the analysis of transport in porous media. Although the empirical treatment of fluid flow and heat transfer in porous media is over a century old, only in the last three decades has the transport in these heterogeneous systems been addressed in sufficient detail. So far, single-phase flow and heat transfer in porous media have been treated or at least formulated satisfactorily. But the subject of two-phase flow and the related he at transfer in porous media is still in its infancy. This monograph identifies the pr in ci pIes of transport in porous media, reviews the available rigorous treatments, and whenever possible compares the available predictions, based on these theoretical treatments of various transport mechanisms, with the existing experimental results. The theoretical treatment is based on the local volume-averaging of the momentum and energy equations with the closure conditions necessary for obtaining solutions. While emphasizing abasie understanding of heat transfer in porous media, the monograph does not ignore the need for the predictive tools. Therefore, whenever a rigorous theoretical treatment of a phenomenon is not available, semiempirical and empirical treatments are given.The monograph is divided into two parts: part 1 deals with single-phase flows and part 2...

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Section: Cb) Dynamic Equilibriummentioning

confidence: 99%

Section: Evaporation From Heated Liquid Filmmentioning

confidence: 99%

Principles of Heat Transfer in Porous Media

Kaviany

1991

Mechanical Engineering Series

827

752

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“…The first method is integrating the Clausius-Clapyron equation. Expanding the ClausiusClapeyron equation [5] dP dT…”

Section: Mathematical Modelingmentioning

confidence: 99%

“…Wayner et al [4] suggested the evaporative mass flux as a function of temperature and pressure at the interface based on Kelvin-Clapeyron equations. Mirzamoghadam and Catton [5] used an appropriate liquid velocity and temperature distribution in an integral approach similar to boundary layer analysis to obtain the evaporating meniscus profile. Stephan and Busse [6] concluded that the assumption of liquid-vapor interface temperature equal to the saturation temperature of vapor can lead to a large overprediction of the radial heat transfer coefficient.…”

Section: Introductionmentioning

confidence: 99%

Comparison of different analytical models for heat and mass transfer characteristics of an evaporating meniscus in a micro-channel

Kou

Zeng

et al. 2015

International Communications in Heat and Mass Transfer

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“…As early as 1972, Potash and Wayner (1972) expanded the Derjaguin-LandauVerwey-Overbeek (DLVO) theory (Derjaguin and Zorin 1956) to describe evaporation and fluid flow from an extended meniscus. Following this work, extensive investigations (Wayner et al 1976;Moosman and Homsy 1980;Holm and Goplen 1979;Mirzamoghadam and Catton 1988;Burelbach et al 1988;Stephan and Busse 1993;Ma and Peterson 1997;Demsky and Ma 2004;Ma et al 2008) have been conducted to further understand mechanisms of fluid flow coupled with evaporating heat transfer in thin film region. In this section, the disjoining pressure is introduced first, then the pressure across the liquid-vapor interface is tracked followed by a discussion of thin film profile, interface temperature, and heat transfer through the thin film region.…”

Section: Thin Film Evaporationmentioning

confidence: 99%

Fundamentals

Ma¹

2015

Oscillating Heat Pipes

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The liquid-vapor interface controlled by the surface tension and meniscus radius plays an important role in fluid flow and heat transfer of a heat pipe. In this chapter, the surface tension will be first introduced from three points of view: physical phenomenon, molecular dynamics, and thermodynamics, respectively. The temperature effect on the surface tension will be discussed and its relationship to the Marangoni flow. When the liquid-vapor interface has a curved surface, a pressure difference across the interface exists. This pressure difference can be predicted by the Laplace-Young equation, which will be addressed including the derivation processes and the origin of the capillary force in a heat pipe. The equilibrium vapor pressure of a liquid will be presented including the effects of meniscus radius and electric field on saturation pressure. When the meniscus radius of a bubble decreases, saturation pressure decreases, which can be used to explain the capillary condensation phenomenon. The contact angle, which significantly affects the capillary force, evaporation, and condensation in a heat pipe, will be discussed including the effects of temperature and surface roughness. Following this, advancing and receding contact angles will be addressed including the velocity effect. Finally, this chapter will cover primary factors affecting thin film evaporation which plays a key role in a heat pipe. The goal of this chapter is to provide the fundamentals related to interface surface, surface tension, contact angle, and phase change heat transfer occurring in heat pipes. Surface TensionWhen liquid flows down in a vertical capillary tube, as shown in Fig. 2.1, a small drop with an almost round shape starts to form and hang from the lower end of the capillary tube. This pendant suspended from the lower end of the capillary caused

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A Physical Model of the Evaporating Meniscus

Cited by 52 publications

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Principles of Heat Transfer in Porous Media

Principles of Heat Transfer in Porous Media

Comparison of different analytical models for heat and mass transfer characteristics of an evaporating meniscus in a micro-channel

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