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Convective instability of a gravity modulated fluid layer with surface tension variation
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Year: 1998 Publisher: Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center,

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Book
Thermocapillary flows and their stability : effects of surface layers and contamination
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Year: 1984 Publisher: Marshall Space Flight Center, Alabama : George C. Marshall Space Flight Center,

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Dissertation
Master thesis : Implementation of a melting/solidification process with the enthalpy method
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Year: 2017 Publisher: Liège Université de Liège (ULiège)

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Phase change materials (PCMs) are of high interest in thermal storage and thermal management applications for the earth and for space environments. Nevertheless, their functionality is intrinsically attached to phase change processes, which, from experience, it is known that they are computationally challenging. The present project arises with the intention to give a numerical solution to this problematic.

A solver based on the enthalpy-porosity technique, capable to deal with diffusive-convective phase change has been adapted for OpenFOAM 4.1. For the implementation of the enthalpy technique, the work of Voller Mushy has been closely followed, and a detailed explanation of the equations employed and the assumptions that support them is given. Furthermore, the numerical approach is also specified, with a close attention to the discretization process based on the Finite Volume Method (FVM). The solver algorithm is provided with a deep explanation of its implementation in OpenFOAM. Furthermore, an analysis of the convergence of the numerical solution is provided.

Moreover, the works of several authors, have been employed to help in some aspects of the implementation and validation of the solver. As part of this validation, the controversial case of the melting of pure Gallium in a rectangular cavity is computed with the OpenFOAM solver. The author gives some discussion about the results obtained and compares them with the existing literature in order to assess the accuracy of the mathematical model employed.

The last part of the project employs the customize solver to analyze the thermal behaviour of a PCM during melting. Three different cases are proposed and tested for two different geometries: one under gravity conditions, where natural convection is part of the heat transfer process, and another two independent of gravity or proper of micro-gravity environments: a pure conductive case and a case with Bénard-Marangoni convection.


Book
Interfacial Convection in Multilayer Systems
Authors: --- ---
ISBN: 0387877134 1493901907 9786613444394 1283444399 0387877142 Year: 2012 Publisher: New York, NY : Springer New York : Imprint: Springer,

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The interfacial convection is a widespread phenomenon which has numerous applications. This book describes the basic models of interfacial convection used on different spatial scales. It presents a variety of physical mechanisms and types of instability characteristic for liquid systems with interfaces. The book summarizes results obtained in the field of interfacial convection during a number of decades, including recent developments in exploration of microfluidic convective flows. The book will appeal to researchers and graduate students working in the field of fluid dynamics. It will help readers to master the mathematical approaches which are used for studying convective flows and understand the underlying physical phenomena. This new edition has been updated throughout and contains the significant progress achieved in studying phenomena in ultra-thin films, in systems with phase transitions, multicomponent systems, and nanosuspensions. Reviews of first edition: “In summary, the bulk of this book is excellent…If the authors could expand the content of chapters six and seven to give the same level of coverage as the first five chapters, this would be an even more valuable resource for mathematicians, physicists and engineers working on the stability of thermocapillary flows.” (Journal of Fluid Mechanics, 2007) “This monograph pulls together the large amount of very recent theoretical and experimental works related to interfacial convection in multilayer systems and is a valuable contribution.” (Mathematical Reviews, 2007).


Book
Self-Assembly of Polymers
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ISBN: 3039285076 3039285068 Year: 2020 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Nowadays, polymer self-assembly has become extremely attractive for both biological (drug delivery, tissue engineering, scaffolds) and non-biological (packaging, semiconductors) applications. In nature, a number of key biological processes are driven by polymer self-assembly, for instance protein folding. Impressive morphologies can be assembled from polymers thanks to a diverse range of interactions involved, e.g., electrostatics, hydrophobic, hots-guest interactions, etc. Both 2D and 3D tailor-made assemblies can be designed through modern powerful techniques and approaches such as the layer-by-layer and the Langmuir-Blodgett deposition, hard and soft templating. This Special Issue highlights contributions (research papers, short communications, review articles) that focus on recent developments in polymer self-assembly for both fundamental understanding the assembly phenomenon and real applications.


Book
Convection in Fluids : A Rational Analysis and Asymptotic Modelling
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ISBN: 940073672X 9048124328 9786612332715 1282332716 9048124336 Year: 2009 Publisher: Dordrecht : Springer Netherlands : Imprint: Springer,

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In the present monograph, entirely devoted to “Convection in Fluids”, the purpose is to present a unified rational approach of various convective phenomena in fluids (mainly considered as a thermally perfect gas or an expansible liquid), where the main driving mechanism is the buoyancy force (Archimedean thrust) or temperature-dependent surface tension in homogeneities (Marangoni effect). Also, the general mathematical formulation (for instance, in the Bénard problem - heated from below)and the effect of the free surface deformation are taken into account. In the case of the atmospheric thermal convection, the Coriolis force and stratification effects are also considered. The main motivation is to give a rational, analytical, analysis of main above mentioned physical effects in each case, on the basis of the full unsteady Navier-Stokes and Fourier (NS-F) equations - for a Newtonian compressible viscous and heat-conducting fluid - coupled with the associated initiales (at initial time), boundary (lower-at the solid plane) and free surface (upper-in contact with ambiant air) conditions. This, obviously, is not an easy but a necessary task if we have in mind a rational modelling process with a view of a numerical coherent simulation on a high speed computer.

Keywords

Buoyant convection -- Mathematical models. --- Convection (Meteorology). --- Fluid dynamics. --- Marangoni effect -- Mathematical models. --- Buoyant convection --- Marangoni effect --- Civil & Environmental Engineering --- Physics --- Physical Sciences & Mathematics --- Engineering & Applied Sciences --- Thermodynamics --- Civil Engineering --- Mathematical models --- Mathematical models. --- Convection, Marangoni --- Flow, Marangoni --- Marangoni convection --- Marangoni flow --- Convection, Buoyant --- Physics. --- Applied mathematics. --- Engineering mathematics. --- Continuum physics. --- Thermodynamics. --- Heat engineering. --- Heat transfer. --- Mass transfer. --- Fluid mechanics. --- Classical Continuum Physics. --- Engineering Fluid Dynamics. --- Engineering Thermodynamics, Heat and Mass Transfer. --- Mathematical Modeling and Industrial Mathematics. --- Applications of Mathematics. --- Hydromechanics --- Continuum mechanics --- Mass transport (Physics) --- Transport theory --- Heat transfer --- Thermal transfer --- Transmission of heat --- Energy transfer --- Heat --- Mechanical engineering --- Chemistry, Physical and theoretical --- Dynamics --- Mechanics --- Heat-engines --- Quantum theory --- Classical field theory --- Continuum physics --- Models, Mathematical --- Simulation methods --- Engineering --- Engineering analysis --- Mathematical analysis --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Mathematics --- Liquid-liquid interfaces --- Convection --- Hydraulic engineering. --- Engineering. --- Mathematics. --- Classical and Continuum Physics. --- Construction --- Industrial arts --- Technology --- Engineering, Hydraulic --- Fluid mechanics --- Hydraulics --- Shore protection --- Math --- Science

Dynamics of spatio-temporal cellular structures : Henri Bénard centenary review
Authors: --- ---
ISBN: 1283438283 9786613438287 0387251111 9780387251110 0387400982 9780387400983 Year: 2006 Publisher: New York, New York : Springer,

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The impact of Benard's discovery on 20th century physics is crucial to any modern research area such as fluid dynamics, nonlinear dynamics, and non-equilibrium thermodynamics, just to name a few. This centenary review shows the broad scope and development including modern applications, edited and written by experts in the field.

Keywords

Bénard cells. --- Heat --- Kinetic theory of gases. --- Marangoni effect. --- Nonlinear theories. --- Chaotic behavior in systems. --- Convection. --- Bénard, Henri, --- Chaos in systems --- Chaos theory --- Chaotic motion in systems --- Nonlinear problems --- Nonlinearity (Mathematics) --- Convection, Marangoni --- Flow, Marangoni --- Marangoni convection --- Marangoni flow --- Gases, Kinetic theory of --- Convection of heat --- Bénard convection --- Bénard convection cells --- Bénard, H. --- Bénard, Henri Claude, --- Statistical Physics, Dynamical Systems and Complexity. --- Classical Continuum Physics. --- Bâenard cells --- Kinetic theory of gases --- Marangoni effect --- Convection --- Physics. --- Continuum physics. --- Statistical physics. --- Dynamical systems. --- Dynamical systems --- Kinetics --- Mathematics --- Mechanics, Analytic --- Force and energy --- Mechanics --- Physics --- Statics --- Mathematical statistics --- Classical field theory --- Continuum physics --- Continuum mechanics --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Dynamics --- Statistical methods --- Differentiable dynamical systems --- Nonlinear theories --- System theory --- Calculus --- Mathematical analysis --- Mathematical physics --- Liquid-liquid interfaces --- Gases --- Molecular theory --- Statistical mechanics --- Rayleigh-Bénard convection --- Complex Systems. --- Classical and Continuum Physics. --- Statistical Physics and Dynamical Systems.


Book
Computational Fluid Dynamics 2020
Author:
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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This book presents a collection of works published in a recent Special Issue (SI) entitled “Computational Fluid Dynamics”. These works address the development and validation of existent numerical solvers for fluid flow problems and their related applications. They present complex nonlinear, non-Newtonian fluid flow problems that are (in some cases) coupled with heat transfer, phase change, nanofluidic, and magnetohydrodynamics (MHD) phenomena. The applications are wide and range from aerodynamic drag and pressure waves to geometrical blade modification on aerodynamics characteristics of high-pressure gas turbines, hydromagnetic flow arising in porous regions, optimal design of isothermal sloshing vessels to evaluation of (hybrid) nanofluid properties, their control using MHD, and their effect on different modes of heat transfer. Recent advances in numerical, theoretical, and experimental methodologies, as well as new physics, new methodological developments, and their limitations are presented within the current book. Among others, in the presented works, special attention is paid to validating and improving the accuracy of the presented methodologies. This book brings together a collection of inter/multidisciplinary works on many engineering applications in a coherent manner.

Keywords

Research & information: general --- Mathematics & science --- homogeneous-heterogeneous reactions --- porous medium --- first slip --- second slip --- exact solution --- fluid structure-interaction --- vibration suppression --- entropy generation minimization --- sloshing --- damping factor --- porous slider --- MHD flow --- reynolds number --- velocity slip --- homotopy analysis method --- Casson nanoliquid --- Marangoni convection --- inclined MHD --- Joule heating --- heat source --- third-grade liquid --- heat generation/absorption --- stretched cylinder --- series solution --- slip effects --- mixed convection flow --- cross fluid --- Darcy–Forchheimer model --- successive local linearization method --- swimming gyrotactic microorganisms --- Darcy law --- nanofluid --- unsteady flow --- non-axisymmetric flow --- MHD --- hybrid nanofluid --- stagnation-point flow --- ferrofluid --- Lie group framework --- unsteady slip flow --- stretching surface --- thermal radiation --- lattice Boltzmann method --- smoothed profile method --- hybrid method --- natural convection simulation --- concentric hexagonal annulus --- CMC-water --- Casson fluid --- mixed convection --- solid sphere --- scaling group analysis --- Sutterby fluid --- magnetohydrodynamics (MHD) --- stability analysis --- entropy --- nanoliquid --- moving wall --- unsteady stagnation point --- convective boundary condition --- Hyperloop system --- transonic speed --- aerodynamic drag --- drag coefficient --- pressure wave --- shockwave --- nanofluids --- heat generation --- sphere --- plume --- finite difference method --- gas turbine --- damaged rotor blade --- leading-edge modification --- aerodynamic characteristics --- micropolar hybrid nanofluid --- dual solution --- stretching/shrinking sheet --- Sisko fluid flow --- gold particles --- radiation effect --- slip effect --- curved surface --- Reiner-Rivlin nanofluid --- circular plates --- induced magnetic effects --- activation energy --- bioconvection nanofluid --- steady flow --- Tiwari and Das model --- Prandtl-Eyring nanofluid --- entropy generation --- implicit finite difference method --- homogeneous-heterogeneous reactions --- porous medium --- first slip --- second slip --- exact solution --- fluid structure-interaction --- vibration suppression --- entropy generation minimization --- sloshing --- damping factor --- porous slider --- MHD flow --- reynolds number --- velocity slip --- homotopy analysis method --- Casson nanoliquid --- Marangoni convection --- inclined MHD --- Joule heating --- heat source --- third-grade liquid --- heat generation/absorption --- stretched cylinder --- series solution --- slip effects --- mixed convection flow --- cross fluid --- Darcy–Forchheimer model --- successive local linearization method --- swimming gyrotactic microorganisms --- Darcy law --- nanofluid --- unsteady flow --- non-axisymmetric flow --- MHD --- hybrid nanofluid --- stagnation-point flow --- ferrofluid --- Lie group framework --- unsteady slip flow --- stretching surface --- thermal radiation --- lattice Boltzmann method --- smoothed profile method --- hybrid method --- natural convection simulation --- concentric hexagonal annulus --- CMC-water --- Casson fluid --- mixed convection --- solid sphere --- scaling group analysis --- Sutterby fluid --- magnetohydrodynamics (MHD) --- stability analysis --- entropy --- nanoliquid --- moving wall --- unsteady stagnation point --- convective boundary condition --- Hyperloop system --- transonic speed --- aerodynamic drag --- drag coefficient --- pressure wave --- shockwave --- nanofluids --- heat generation --- sphere --- plume --- finite difference method --- gas turbine --- damaged rotor blade --- leading-edge modification --- aerodynamic characteristics --- micropolar hybrid nanofluid --- dual solution --- stretching/shrinking sheet --- Sisko fluid flow --- gold particles --- radiation effect --- slip effect --- curved surface --- Reiner-Rivlin nanofluid --- circular plates --- induced magnetic effects --- activation energy --- bioconvection nanofluid --- steady flow --- Tiwari and Das model --- Prandtl-Eyring nanofluid --- entropy generation --- implicit finite difference method


Book
Computational Fluid Dynamics 2020
Author:
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This book presents a collection of works published in a recent Special Issue (SI) entitled “Computational Fluid Dynamics”. These works address the development and validation of existent numerical solvers for fluid flow problems and their related applications. They present complex nonlinear, non-Newtonian fluid flow problems that are (in some cases) coupled with heat transfer, phase change, nanofluidic, and magnetohydrodynamics (MHD) phenomena. The applications are wide and range from aerodynamic drag and pressure waves to geometrical blade modification on aerodynamics characteristics of high-pressure gas turbines, hydromagnetic flow arising in porous regions, optimal design of isothermal sloshing vessels to evaluation of (hybrid) nanofluid properties, their control using MHD, and their effect on different modes of heat transfer. Recent advances in numerical, theoretical, and experimental methodologies, as well as new physics, new methodological developments, and their limitations are presented within the current book. Among others, in the presented works, special attention is paid to validating and improving the accuracy of the presented methodologies. This book brings together a collection of inter/multidisciplinary works on many engineering applications in a coherent manner.

Keywords

homogeneous-heterogeneous reactions --- porous medium --- first slip --- second slip --- exact solution --- fluid structure-interaction --- vibration suppression --- entropy generation minimization --- sloshing --- damping factor --- porous slider --- MHD flow --- reynolds number --- velocity slip --- homotopy analysis method --- Casson nanoliquid --- Marangoni convection --- inclined MHD --- Joule heating --- heat source --- third-grade liquid --- heat generation/absorption --- stretched cylinder --- series solution --- slip effects --- mixed convection flow --- cross fluid --- Darcy–Forchheimer model --- successive local linearization method --- swimming gyrotactic microorganisms --- Darcy law --- nanofluid --- unsteady flow --- non-axisymmetric flow --- MHD --- hybrid nanofluid --- stagnation-point flow --- ferrofluid --- Lie group framework --- unsteady slip flow --- stretching surface --- thermal radiation --- lattice Boltzmann method --- smoothed profile method --- hybrid method --- natural convection simulation --- concentric hexagonal annulus --- CMC-water --- Casson fluid --- mixed convection --- solid sphere --- scaling group analysis --- Sutterby fluid --- magnetohydrodynamics (MHD) --- stability analysis --- entropy --- nanoliquid --- moving wall --- unsteady stagnation point --- convective boundary condition --- Hyperloop system --- transonic speed --- aerodynamic drag --- drag coefficient --- pressure wave --- shockwave --- nanofluids --- heat generation --- sphere --- plume --- finite difference method --- gas turbine --- damaged rotor blade --- leading-edge modification --- aerodynamic characteristics --- micropolar hybrid nanofluid --- dual solution --- stretching/shrinking sheet --- Sisko fluid flow --- gold particles --- radiation effect --- slip effect --- curved surface --- Reiner-Rivlin nanofluid --- circular plates --- induced magnetic effects --- activation energy --- bioconvection nanofluid --- steady flow --- Tiwari and Das model --- Prandtl-Eyring nanofluid --- entropy generation --- implicit finite difference method

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