Non Equilibrium Evaporation And Condensation Processes

Author : Yuri B. Zudin
Publisher : Springer
ISBN 13 : 3030138151
Total Pages : 404 pages
Book Rating : 4.58/5 ( download)

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Download or read book Non-equilibrium Evaporation and Condensation Processes written by Yuri B. Zudin and published by Springer. This book was released on 2019-03-12 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph is focused mostly on the exposition of analytical methods for the solution of problems of strong phase change. A new theoretical model is proved useful in describing, with acceptable accuracy, problems of strong evaporation and condensation. The book is the first to treat the problem of asymmetry for evaporation/condensation. A semi-empirical model for the process is proposed for purposes of practical calculation of the process of strong evaporation. The “limiting schemes” of the vapor bubble growth are analyzed. The thermo-hydrodynamic problem of evaporating meniscus of a thin liquid film on a heated surface is considered. A theoretical analysis of the problem of evaporation of a drop levitating over a vapor cushion is performed. The problem of vapor condensation upon a transversal flow around a horizontal cylinder is considered. The second edition is extended by (i) the conjugate “strong evaporation - heat conduction” problem, (ii) the influence of accommodation coefficients on intensive processes of evaporation and condensation, (iii) the problem of supersonic condensation. This book is the first to present a comprehensive theoretical approach of boiling problems: nucleate boiling, superfluid helium phase transition, similarity between pseudo-boiling and subcritical pressure nucleate boiling. The target audience primarily comprises research experts in the field of thermodynamics and fluid dynamics, but the book may also be beneficial for graduate students.

Author : YURI B. ZUDIN
Publisher :
ISBN 13 : 9783030138172
Total Pages : pages
Book Rating : 4.78/5 ( download)

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Download or read book NON-EQUILIBRIUM EVAPORATION AND CONDENSATION PROCESSES written by YURI B. ZUDIN and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Yuri B. Zudin
Publisher : Springer Nature
ISBN 13 : 303067553X
Total Pages : 573 pages
Book Rating : 4.30/5 ( download)

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Download or read book Non-equilibrium Evaporation and Condensation Processes written by Yuri B. Zudin and published by Springer Nature. This book was released on 2021-02-27 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: This present book is concerned with analytical approaches to statement and solution of problems of non-equilibrium evaporation and condensation. From analytical solutions, one is capable to understand and represent in a transparent form the principal laws, especially in the study of a new phenomenon or a process. This is why analytical methods are always employed on the first stage of mathematical modeling. Analytical solutions are also used as test models for validation of results numerical solutions. Non-equilibrium evaporation and condensation processes play an important role in a number of fundamental and applied problems: laser methods for processing of materials, depressurization of the protection cover of nuclear propulsion units, solar radiation on a comet surface, explosive boiling of superheated liquid, thermodynamic principles of superfluid helium. Analytical relations provide an adequate description of the essence of a physical phenomenon.

Author : S. P. Lin
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.40/5 ( download)

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Download or read book Non-equilibrium Evaporation and Condensation from a Liquid Layer Heated from Below at Microgravity written by S. P. Lin and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Hamidreza Jahandideh
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.38/5 ( download)

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Download or read book Macroscopic Modelling of the Phase Interface in Non-equilibrium Evaporation/condensation Based on the Enskog-Vlasov Equation written by Hamidreza Jahandideh and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Considerable jump and slip phenomena are observed at the non-equilibrium phase interface in microflows. Hence, accurate modelling of the liquid-vapour interface transport mechanisms that matches the observations is required, e.g. in applications such as micro/nanotechnology and micro fuel cells. In the sharp interface model, the classical Navier-Stokes-Fourier (NSF) equations can be used in the liquid and vapour phases, while the interface resistivities describe the jump and slip phenomena at the interface. However, resistivities are challenging to find from the measurements, and most of the classical kinetic theories consider them as constants. One possible approach is to determine them from a model that resolves the phase interface. In order to resolve the interface and the transport processes at and in front of the interface in high resolutions, there are two ways in general, microscopic or macroscopic. The microscopic studies are based either on molecular dynamics (MD) or kinetic models, such as the Enskog-Vlasov (EV) equation. The EV equation modifies the Boltzmann equation by considering dense gas effects, such as the interaction forces between the particles and their finite size. It can be solved by the Direct Simulation Monte Carlo (DSMC) method, which considers sample particles that stand in for thousands to hundred thousands of particles and determine most likely collisions based on interaction probabilities, but it is time-consuming and costly. Here, a closed set of 26-moment equations is numerically solved to resolve the liquid-vapour interface macroscopically while considering the dense gas and phase change effects. The 26-moment set of equations is derived by Struchtrup & Frezzotti as an approximation of the EV equation using Grad's moment method. The macroscopic moment equations resolve the phase interface in a high resolution competitive to the microscopic studies. The resolved interface visualizes the interface structure and the changes of the system variables between the two phases at the interface. The 26-moment equations are solved for a one-dimensional steady-state system for non-equilibrium evaporation/condensation process. Then, solutions are used to find the jump and slip conditions at the interface, which leads to determining the interface resistivities at different interface temperatures and non-equilibrium strengths from the Linear Irreversible Thermodynamics (LIT). The interface resistivities show their dependence on the temperature of the liquid at the interface as well as the strength of the non-equilibrium process. As a result, in further studies, similar systems can be modelled using the sharp interface method with the appropriate jump conditions at the phase interface that can be found from the determined EV interface resistivities.

Author : Van P. Carey
Publisher : Hemisphere Pub
ISBN 13 : 9780891168362
Total Pages : 645 pages
Book Rating : 4.62/5 ( download)

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Download or read book Liquid-vapor Phase-change Phenomena written by Van P. Carey and published by Hemisphere Pub. This book was released on 1992 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: This advanced textbook for courses covering heat transfer with phase change, was developed based on the author's wide experience of teaching courses on the subject. In his comprehensive treatment, Carey offers, through illustrative examples and problems, a presentation of non-equilibrium thermodynamics and interfacial phenomena associated with vaporization and condensation processes, in addition to fundamentals of heat tranfer and fluid flow mechanisms. The sequence in which the material is presented is designed to facilitate instruction at the advanced undergraduate level in mechanical and chemical engineering. Tables of thermophysical properties are included in an appendix to aid in the solution to many of the homework problems.

Author : Maurice Bond
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.21/5 ( download)

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Download or read book Non-equilibrium Evaporation and Condensation written by Maurice Bond and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Alexei Kryukov
Publisher : Springer Science & Business Media
ISBN 13 : 3319000837
Total Pages : 59 pages
Book Rating : 4.31/5 ( download)

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Download or read book Non-Equilibrium Phenomena near Vapor-Liquid Interfaces written by Alexei Kryukov and published by Springer Science & Business Media. This book was released on 2013-03-28 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents information on the development of a non-equilibrium approach to the study of heat and mass transfer problems using vapor-liquid interfaces, and demonstrates its application to a broad range of problems. In the process, the following peculiarities become apparent: 1. At vapor condensation on the interface from gas-vapor mixture, non-condensable components can lock up the interface surface and condensation stops completely. 2. At the evolution of vapor film on the heater in superfluid helium (He-II), the boiling mass flux density from the vapor-liquid interface is effectively zero at the macroscopic scale. 3. In problems concerning the motion of He-II bridges inside capillaries filled by vapor, in the presence of axial heat flux the He-II bridge cannot move from the heater as would a traditional liquid, but in the opposite direction instead. Thus the heater attracts the superfluid helium bridge. 4. The shape of liquid-vapor interface at film boiling on the axis-symmetric heaters immersed in liquid greatly depends on heat flux in the interface. Thus a new type of hydrostatic problems appears when in contrast to traditional statements the shape of the liquid-vapor interface has a complex profile with a point of inflection and a smooth exit on a free liquid surface.

Author : Kyuichi Yasui
Publisher : Springer
ISBN 13 : 3319682377
Total Pages : 131 pages
Book Rating : 4.72/5 ( download)

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Download or read book Acoustic Cavitation and Bubble Dynamics written by Kyuichi Yasui and published by Springer. This book was released on 2017-10-26 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: This brief explains in detail fundamental concepts in acoustic cavitation and bubble dynamics, and describes derivations of the fundamental equations of bubble dynamics in order to support those readers just beginning research in this field. Further, it provides an in-depth understanding of the physical basis of the phenomena. With regard to sonochemistry, the brief presents the results of numerical simulations of chemical reactions inside a bubble under ultrasound, especially for a single-bubble system and including unsolved problems. Written so as to be accessible both with and without prior knowledge of fundamental fluid dynamics, the brief offers a valuable resource for students and researchers alike, especially those who are unfamiliar with this field. A grasp of fundamental undergraduate mathematics such as partial derivative and fundamental integration is advantageous; however, even without any background in mathematics, readers can skip the equations and still understand the fundamental physics of the phenomena using the book’s wealth of illustrations and figures. As such, it is also suitable as an introduction to the field.

Author : Maurice Bond
Publisher :
ISBN 13 :
Total Pages : 354 pages
Book Rating : 4.21/5 ( download)

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Download or read book Non-equilibrium Evaporation and Condensation written by Maurice Bond and published by . This book was released on 2004 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: