Direct numerical simulations of gas-liquid multiphase flows / / by Grétar Tryggvason, Ruben Scardovelli, Stéphane Zaleski [[electronic resource]] |
Autore | Tryggvason Gretar |
Pubbl/distr/stampa | Cambridge : , : Cambridge University Press, , 2011 |
Descrizione fisica | 1 online resource (x, 324 pages) : digital, PDF file(s) |
Disciplina | 532.56 |
Soggetto topico |
Multiphase flow - Mathematical models
Gas-liquid interfaces |
ISBN |
1-107-21807-1
1-283-34214-6 1-139-15978-X 9786613342140 1-139-16078-8 1-139-15522-9 1-139-15873-2 1-139-15697-7 0-511-97526-0 |
Formato | Materiale a stampa ![]() |
Livello bibliografico | Monografia |
Lingua di pubblicazione | eng |
Nota di contenuto |
Cover; DIRECT NUMERICAL SIMULATIONS OF GAS-LIQUID MULTIPHASE FLOWS; Title; Copyright; Contents; Preface; 1 Introduction; 1.1 Examples of multiphase flows; 1.2 Computational modeling; 1.2.1 Simple flows (Re = 0 and Re = 8); 1.2.2 Finite Reynolds number flows; 1.3 Looking ahead; 2 Fluid mechanics with interfaces; 2.1 General principles; 2.2 Basic equations; 2.2.1 Mass conservation; 2.2.2 Momentum conservation; 2.2.3 Energy conservation; 2.2.4 Incompressible flow; 2.2.5 Boundary conditions; 2.3 Interfaces: description and definitions; 2.4 Fluid mechanics with interfaces
2.4.1 Mass conservation and velocity conditions2.4.2 Surface tension; 2.4.3 Momentum conservation with interfaces; 2.4.4 Free-surface flow; 2.5 Fluid mechanics with interfaces: the one-fluid formulation; 2.6 Nondimensional numbers; 2.7 Thin films, intermolecular forces, and contact lines; 2.7.1 Disjoining pressure and forces between interfaces; 2.7.2 Contact line statics and dynamics; 2.8 Notes; 2.8.1 Fluid and interface mechanics; 2.8.2 Thin films and contact lines; 3 Numerical solutions of the Navier-Stokes equations; 3.1 Time integration; 3.2 Spatial discretization 3.3 Discretization of the advection terms3.4 The viscous terms; 3.5 The pressure equation; 3.6 Velocity boundary conditions; 3.7 Outflow boundary conditions; 3.8 Adaptive mesh refinement; 3.9 Summary; 3.10 Postscript: conservative versus non-conservative form; 4Advecting a fluid interface; 4.1 Notations; 4.2 Advecting the color function; 4.3 The volume-of-fluid (VOF) method; 4.4 Front tracking; 4.5 The level-set method; 4.6 Phase-field methods; 4.7 The CIP method; 4.8 Summary; 5 The volume-of-fluid method; 5.1 Basic properties; 5.2 Interface reconstruction 5.2.1 Convergence order of a reconstruction method5.2.2 Evaluation of the interface unit normal; 5.2.3 Determination of a; 5.3 Tests of reconstruction methods; 5.3.1 Errors measurement and convergence rate; 5.3.2 Reconstruction accuracy tests; 5.4 Interface advection; 5.4.1 Geometrical one-dimensional linear-mapping method; 5.4.2 Related one-dimensional advection methods; 5.4.3 Unsplit methods; 5.5 Tests of reconstruction and advection methods; 5.5.1 Translation test; 5.5.2 Vortex-in-a-box test; 5.6 Hybrid methods; 6 Advecting marker points: front tracking; 6.1 The structure of the front 6.1.1 Structured two-dimensional fronts6.1.2 Unstructured fronts; 6.2 Restructuring the fronts; 6.3 The front-grid communications; 6.3.1 Locating the front on the fixed grid; 6.3.2 Interpolation and smoothing; 6.4 Advection of the front; 6.5 Constructing the marker function; 6.5.1 Constructing the marker function from its gradient; 6.5.2 Construction of the volume fraction from the front location; 6.6 Changes in the front topology; 6.7 Notes; 7 Surface tension; 7.1 Computing surface tension from marker functions; 7.1.1 Continuous surface force method; 7.1.2 Continuous surface stress method 7.1.3 Direct addition and elementary smoothing in the VOF method |
Record Nr. | UNINA-9910457511903321 |
Tryggvason Gretar
![]() |
||
Cambridge : , : Cambridge University Press, , 2011 | ||
![]() | ||
Lo trovi qui: Univ. Federico II | ||
|
Direct numerical simulations of gas-liquid multiphase flows / / by Grétar Tryggvason, Ruben Scardovelli, Stéphane Zaleski [[electronic resource]] |
Autore | Tryggvason Gretar |
Pubbl/distr/stampa | Cambridge : , : Cambridge University Press, , 2011 |
Descrizione fisica | 1 online resource (x, 324 pages) : digital, PDF file(s) |
Disciplina | 532.56 |
Soggetto topico |
Multiphase flow - Mathematical models
Gas-liquid interfaces |
ISBN |
1-107-21807-1
1-283-34214-6 1-139-15978-X 9786613342140 1-139-16078-8 1-139-15522-9 1-139-15873-2 1-139-15697-7 0-511-97526-0 |
Formato | Materiale a stampa ![]() |
Livello bibliografico | Monografia |
Lingua di pubblicazione | eng |
Nota di contenuto |
Cover; DIRECT NUMERICAL SIMULATIONS OF GAS-LIQUID MULTIPHASE FLOWS; Title; Copyright; Contents; Preface; 1 Introduction; 1.1 Examples of multiphase flows; 1.2 Computational modeling; 1.2.1 Simple flows (Re = 0 and Re = 8); 1.2.2 Finite Reynolds number flows; 1.3 Looking ahead; 2 Fluid mechanics with interfaces; 2.1 General principles; 2.2 Basic equations; 2.2.1 Mass conservation; 2.2.2 Momentum conservation; 2.2.3 Energy conservation; 2.2.4 Incompressible flow; 2.2.5 Boundary conditions; 2.3 Interfaces: description and definitions; 2.4 Fluid mechanics with interfaces
2.4.1 Mass conservation and velocity conditions2.4.2 Surface tension; 2.4.3 Momentum conservation with interfaces; 2.4.4 Free-surface flow; 2.5 Fluid mechanics with interfaces: the one-fluid formulation; 2.6 Nondimensional numbers; 2.7 Thin films, intermolecular forces, and contact lines; 2.7.1 Disjoining pressure and forces between interfaces; 2.7.2 Contact line statics and dynamics; 2.8 Notes; 2.8.1 Fluid and interface mechanics; 2.8.2 Thin films and contact lines; 3 Numerical solutions of the Navier-Stokes equations; 3.1 Time integration; 3.2 Spatial discretization 3.3 Discretization of the advection terms3.4 The viscous terms; 3.5 The pressure equation; 3.6 Velocity boundary conditions; 3.7 Outflow boundary conditions; 3.8 Adaptive mesh refinement; 3.9 Summary; 3.10 Postscript: conservative versus non-conservative form; 4Advecting a fluid interface; 4.1 Notations; 4.2 Advecting the color function; 4.3 The volume-of-fluid (VOF) method; 4.4 Front tracking; 4.5 The level-set method; 4.6 Phase-field methods; 4.7 The CIP method; 4.8 Summary; 5 The volume-of-fluid method; 5.1 Basic properties; 5.2 Interface reconstruction 5.2.1 Convergence order of a reconstruction method5.2.2 Evaluation of the interface unit normal; 5.2.3 Determination of a; 5.3 Tests of reconstruction methods; 5.3.1 Errors measurement and convergence rate; 5.3.2 Reconstruction accuracy tests; 5.4 Interface advection; 5.4.1 Geometrical one-dimensional linear-mapping method; 5.4.2 Related one-dimensional advection methods; 5.4.3 Unsplit methods; 5.5 Tests of reconstruction and advection methods; 5.5.1 Translation test; 5.5.2 Vortex-in-a-box test; 5.6 Hybrid methods; 6 Advecting marker points: front tracking; 6.1 The structure of the front 6.1.1 Structured two-dimensional fronts6.1.2 Unstructured fronts; 6.2 Restructuring the fronts; 6.3 The front-grid communications; 6.3.1 Locating the front on the fixed grid; 6.3.2 Interpolation and smoothing; 6.4 Advection of the front; 6.5 Constructing the marker function; 6.5.1 Constructing the marker function from its gradient; 6.5.2 Construction of the volume fraction from the front location; 6.6 Changes in the front topology; 6.7 Notes; 7 Surface tension; 7.1 Computing surface tension from marker functions; 7.1.1 Continuous surface force method; 7.1.2 Continuous surface stress method 7.1.3 Direct addition and elementary smoothing in the VOF method |
Record Nr. | UNINA-9910781866203321 |
Tryggvason Gretar
![]() |
||
Cambridge : , : Cambridge University Press, , 2011 | ||
![]() | ||
Lo trovi qui: Univ. Federico II | ||
|
Direct numerical simulations of gas-liquid multiphase flows / / by Grétar Tryggvason, Ruben Scardovelli, Stéphane Zaleski [[electronic resource]] |
Autore | Tryggvason Gretar |
Pubbl/distr/stampa | Cambridge : , : Cambridge University Press, , 2011 |
Descrizione fisica | 1 online resource (x, 324 pages) : digital, PDF file(s) |
Disciplina | 532.56 |
Soggetto topico |
Multiphase flow - Mathematical models
Gas-liquid interfaces |
ISBN |
1-107-21807-1
1-283-34214-6 1-139-15978-X 9786613342140 1-139-16078-8 1-139-15522-9 1-139-15873-2 1-139-15697-7 0-511-97526-0 |
Formato | Materiale a stampa ![]() |
Livello bibliografico | Monografia |
Lingua di pubblicazione | eng |
Nota di contenuto |
Cover; DIRECT NUMERICAL SIMULATIONS OF GAS-LIQUID MULTIPHASE FLOWS; Title; Copyright; Contents; Preface; 1 Introduction; 1.1 Examples of multiphase flows; 1.2 Computational modeling; 1.2.1 Simple flows (Re = 0 and Re = 8); 1.2.2 Finite Reynolds number flows; 1.3 Looking ahead; 2 Fluid mechanics with interfaces; 2.1 General principles; 2.2 Basic equations; 2.2.1 Mass conservation; 2.2.2 Momentum conservation; 2.2.3 Energy conservation; 2.2.4 Incompressible flow; 2.2.5 Boundary conditions; 2.3 Interfaces: description and definitions; 2.4 Fluid mechanics with interfaces
2.4.1 Mass conservation and velocity conditions2.4.2 Surface tension; 2.4.3 Momentum conservation with interfaces; 2.4.4 Free-surface flow; 2.5 Fluid mechanics with interfaces: the one-fluid formulation; 2.6 Nondimensional numbers; 2.7 Thin films, intermolecular forces, and contact lines; 2.7.1 Disjoining pressure and forces between interfaces; 2.7.2 Contact line statics and dynamics; 2.8 Notes; 2.8.1 Fluid and interface mechanics; 2.8.2 Thin films and contact lines; 3 Numerical solutions of the Navier-Stokes equations; 3.1 Time integration; 3.2 Spatial discretization 3.3 Discretization of the advection terms3.4 The viscous terms; 3.5 The pressure equation; 3.6 Velocity boundary conditions; 3.7 Outflow boundary conditions; 3.8 Adaptive mesh refinement; 3.9 Summary; 3.10 Postscript: conservative versus non-conservative form; 4Advecting a fluid interface; 4.1 Notations; 4.2 Advecting the color function; 4.3 The volume-of-fluid (VOF) method; 4.4 Front tracking; 4.5 The level-set method; 4.6 Phase-field methods; 4.7 The CIP method; 4.8 Summary; 5 The volume-of-fluid method; 5.1 Basic properties; 5.2 Interface reconstruction 5.2.1 Convergence order of a reconstruction method5.2.2 Evaluation of the interface unit normal; 5.2.3 Determination of a; 5.3 Tests of reconstruction methods; 5.3.1 Errors measurement and convergence rate; 5.3.2 Reconstruction accuracy tests; 5.4 Interface advection; 5.4.1 Geometrical one-dimensional linear-mapping method; 5.4.2 Related one-dimensional advection methods; 5.4.3 Unsplit methods; 5.5 Tests of reconstruction and advection methods; 5.5.1 Translation test; 5.5.2 Vortex-in-a-box test; 5.6 Hybrid methods; 6 Advecting marker points: front tracking; 6.1 The structure of the front 6.1.1 Structured two-dimensional fronts6.1.2 Unstructured fronts; 6.2 Restructuring the fronts; 6.3 The front-grid communications; 6.3.1 Locating the front on the fixed grid; 6.3.2 Interpolation and smoothing; 6.4 Advection of the front; 6.5 Constructing the marker function; 6.5.1 Constructing the marker function from its gradient; 6.5.2 Construction of the volume fraction from the front location; 6.6 Changes in the front topology; 6.7 Notes; 7 Surface tension; 7.1 Computing surface tension from marker functions; 7.1.1 Continuous surface force method; 7.1.2 Continuous surface stress method 7.1.3 Direct addition and elementary smoothing in the VOF method |
Record Nr. | UNINA-9910818684903321 |
Tryggvason Gretar
![]() |
||
Cambridge : , : Cambridge University Press, , 2011 | ||
![]() | ||
Lo trovi qui: Univ. Federico II | ||
|
Small scale modeling and simulation of incompressible turbulent multi-phase flow / / Stéphane Vincent, Jean-Luc Estivalèzes, and Ruben Scardovelli |
Autore | Vincent Stéphane |
Pubbl/distr/stampa | Cham, Switzerland : , : Springer, , [2022] |
Descrizione fisica | 1 online resource (314 pages) |
Disciplina | 620.1064 |
Collana | CISM International Centre for Mechanical Sciences |
Soggetto topico |
Multiphase flow - Mathematical models
Turbulence - Mathematical models |
ISBN | 3-031-09265-1 |
Formato | Materiale a stampa ![]() |
Livello bibliografico | Monografia |
Lingua di pubblicazione | eng |
Nota di contenuto |
Intro -- Acknowledgements -- Collaborators -- Technical Aspects -- Financial Support -- Contents -- 1 Introduction and Motivations -- 1.1 Governing Equations for DNS of Multiphase Flows -- 1.1.1 Mass Conservation -- 1.1.2 Momentum Conservation -- 1.1.3 Fluid Assumptions -- 1.2 Interface and Jump Conditions -- 1.2.1 Surface Tension -- 1.2.2 Viscosity -- 1.3 The Final Model -- 2 DNS of Resolved Scale Interfacial and Free Surface Flows with Fictitious Domains -- 2.1 One-Fluid Model -- 2.2 General Discretization and Solvers -- 2.2.1 Pressure-Velocity Coupling and Solvers -- 2.2.2 Jump Conditions -- 2.2.3 Boundary Conditions -- 2.2.4 Poisson Pressure Solver -- 2.3 Methods for Handling Interfaces -- 2.3.1 Interface Tracking Methods -- 2.3.2 Front-Capturing (Implicit Interface) -- 2.3.3 SPH Methods -- 2.4 Capillary Effects and Jump Conditions at Interface -- 2.4.1 Ghost Fluid -- 2.4.2 Continuum Surface Force -- 2.5 Validations of Interface Tracking and Fictitious Domains -- 2.5.1 Comparison of Interface Tracking Methods -- 2.5.2 Density and Viscosity Averages -- 2.5.3 Capillary Forces -- 3 Interface Tracking -- 3.1 VOF -- 3.1.1 Introduction to VOF Methods -- 3.1.2 Initialization of the Color Function C -- 3.1.3 A Library to Initialize the Volume Fraction Field -- 3.1.4 Algebraic Methods for the Advection of the Color Function -- 3.1.5 Simple Geometric Methods for the Advection of the Color Function -- 3.1.6 VOF-PLIC Methods: Interface Reconstruction -- 3.1.7 VOF-PLIC Methods: Interface Advection -- 3.2 Level Set -- 3.2.1 Level Set Definition -- 3.2.2 Numerical Method -- 3.2.3 Coupled Level-Set Volume of Fluid -- 3.2.4 Advection of the Level-Set Function and the Volume Fraction -- 3.3 Front Tracking -- 4 Adaptive Mesh Refinement -- 4.1 Introduction -- 4.2 AMR -- 4.3 Poisson Solver -- 4.4 Numerical Results.
5 Numerical Treatment of Constraints with Fictitious Domains -- 5.1 Augmented Lagrangian Methods -- 5.2 Penalty Methods -- 5.3 Remarks on Time Splitting Approaches -- 5.4 Validation of Penalty Techniques -- 6 Compressible (Low-Mach) Two-Phase Flows -- 6.1 Mass Conservation -- 6.2 Momentum Conservation -- 6.3 Energy Conservation -- 6.4 Comparison with Classical ``Low Mach Number'' Model -- 6.5 Synthesis of Models -- 6.6 Validation of Isothermal Compressible One-Fluid Model -- 7 Large Eddy Simulation of Resolved Scale Interfacial Flows -- 7.1 Filtering 1-Fluid Navier-Stokes Equations-Continuous Media Framework -- 7.2 Filtering Discrete Mechanics Equations -- 7.3 Structural LES and Approximate Deconvolution Models (ADM) -- 7.4 LES of Multiphase Flows -- 8 DNS of Particulate Flows -- 8.1 Fictitious Domain and Penalty Approaches -- 8.1.1 Physical Characteristics of the Equivalent Fluid -- 8.1.2 Eulerian-Lagrangian VOF Method for Particle Tracking -- 8.1.3 Numerical Modeling of Particle Interaction -- 8.1.4 Parallel Implementation -- 8.1.5 Sum up of the Implemented Eulerian-Lagrangian Algorithm -- 8.2 Validations -- 8.2.1 Monodispersed Arrangements of Spheres -- 8.2.2 Bidisperse Arrangements of Spheres -- 8.2.3 Fluidized Beds -- 8.2.4 Interaction Between Particles and Turbulence -- 9 Multiscale Euler-Lagrange Coupling -- 9.1 Introduction -- 9.2 Governing Equations -- 9.3 Resolved Liquid Structures-Eulerian Modelling -- 9.3.1 Interface Tracking -- 9.3.2 Temporal Integration -- 9.3.3 Adaptive Mesh Refinement -- 9.4 Multi-scale Approach -- 9.4.1 Treatment of Medium Structures -- 9.4.2 Small Droplets -- 9.5 Results and Validation -- 9.5.1 Drop in a Uniform Flow -- 9.5.2 Drop-Free Surface Collision -- 9.5.3 Assisted Atomization of a Liquid Sheet -- 10 Applications and Perspectives -- Appendix Bibliography. |
Record Nr. | UNISA-996495164603316 |
Vincent Stéphane
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||
Cham, Switzerland : , : Springer, , [2022] | ||
![]() | ||
Lo trovi qui: Univ. di Salerno | ||
|
Small scale modeling and simulation of incompressible turbulent multi-phase flow / / Stéphane Vincent, Jean-Luc Estivalèzes, and Ruben Scardovelli |
Autore | Vincent Stéphane |
Pubbl/distr/stampa | Cham, Switzerland : , : Springer, , [2022] |
Descrizione fisica | 1 online resource (314 pages) |
Disciplina | 620.1064 |
Collana | CISM International Centre for Mechanical Sciences |
Soggetto topico |
Multiphase flow - Mathematical models
Turbulence - Mathematical models |
ISBN | 3-031-09265-1 |
Formato | Materiale a stampa ![]() |
Livello bibliografico | Monografia |
Lingua di pubblicazione | eng |
Nota di contenuto |
Intro -- Acknowledgements -- Collaborators -- Technical Aspects -- Financial Support -- Contents -- 1 Introduction and Motivations -- 1.1 Governing Equations for DNS of Multiphase Flows -- 1.1.1 Mass Conservation -- 1.1.2 Momentum Conservation -- 1.1.3 Fluid Assumptions -- 1.2 Interface and Jump Conditions -- 1.2.1 Surface Tension -- 1.2.2 Viscosity -- 1.3 The Final Model -- 2 DNS of Resolved Scale Interfacial and Free Surface Flows with Fictitious Domains -- 2.1 One-Fluid Model -- 2.2 General Discretization and Solvers -- 2.2.1 Pressure-Velocity Coupling and Solvers -- 2.2.2 Jump Conditions -- 2.2.3 Boundary Conditions -- 2.2.4 Poisson Pressure Solver -- 2.3 Methods for Handling Interfaces -- 2.3.1 Interface Tracking Methods -- 2.3.2 Front-Capturing (Implicit Interface) -- 2.3.3 SPH Methods -- 2.4 Capillary Effects and Jump Conditions at Interface -- 2.4.1 Ghost Fluid -- 2.4.2 Continuum Surface Force -- 2.5 Validations of Interface Tracking and Fictitious Domains -- 2.5.1 Comparison of Interface Tracking Methods -- 2.5.2 Density and Viscosity Averages -- 2.5.3 Capillary Forces -- 3 Interface Tracking -- 3.1 VOF -- 3.1.1 Introduction to VOF Methods -- 3.1.2 Initialization of the Color Function C -- 3.1.3 A Library to Initialize the Volume Fraction Field -- 3.1.4 Algebraic Methods for the Advection of the Color Function -- 3.1.5 Simple Geometric Methods for the Advection of the Color Function -- 3.1.6 VOF-PLIC Methods: Interface Reconstruction -- 3.1.7 VOF-PLIC Methods: Interface Advection -- 3.2 Level Set -- 3.2.1 Level Set Definition -- 3.2.2 Numerical Method -- 3.2.3 Coupled Level-Set Volume of Fluid -- 3.2.4 Advection of the Level-Set Function and the Volume Fraction -- 3.3 Front Tracking -- 4 Adaptive Mesh Refinement -- 4.1 Introduction -- 4.2 AMR -- 4.3 Poisson Solver -- 4.4 Numerical Results.
5 Numerical Treatment of Constraints with Fictitious Domains -- 5.1 Augmented Lagrangian Methods -- 5.2 Penalty Methods -- 5.3 Remarks on Time Splitting Approaches -- 5.4 Validation of Penalty Techniques -- 6 Compressible (Low-Mach) Two-Phase Flows -- 6.1 Mass Conservation -- 6.2 Momentum Conservation -- 6.3 Energy Conservation -- 6.4 Comparison with Classical ``Low Mach Number'' Model -- 6.5 Synthesis of Models -- 6.6 Validation of Isothermal Compressible One-Fluid Model -- 7 Large Eddy Simulation of Resolved Scale Interfacial Flows -- 7.1 Filtering 1-Fluid Navier-Stokes Equations-Continuous Media Framework -- 7.2 Filtering Discrete Mechanics Equations -- 7.3 Structural LES and Approximate Deconvolution Models (ADM) -- 7.4 LES of Multiphase Flows -- 8 DNS of Particulate Flows -- 8.1 Fictitious Domain and Penalty Approaches -- 8.1.1 Physical Characteristics of the Equivalent Fluid -- 8.1.2 Eulerian-Lagrangian VOF Method for Particle Tracking -- 8.1.3 Numerical Modeling of Particle Interaction -- 8.1.4 Parallel Implementation -- 8.1.5 Sum up of the Implemented Eulerian-Lagrangian Algorithm -- 8.2 Validations -- 8.2.1 Monodispersed Arrangements of Spheres -- 8.2.2 Bidisperse Arrangements of Spheres -- 8.2.3 Fluidized Beds -- 8.2.4 Interaction Between Particles and Turbulence -- 9 Multiscale Euler-Lagrange Coupling -- 9.1 Introduction -- 9.2 Governing Equations -- 9.3 Resolved Liquid Structures-Eulerian Modelling -- 9.3.1 Interface Tracking -- 9.3.2 Temporal Integration -- 9.3.3 Adaptive Mesh Refinement -- 9.4 Multi-scale Approach -- 9.4.1 Treatment of Medium Structures -- 9.4.2 Small Droplets -- 9.5 Results and Validation -- 9.5.1 Drop in a Uniform Flow -- 9.5.2 Drop-Free Surface Collision -- 9.5.3 Assisted Atomization of a Liquid Sheet -- 10 Applications and Perspectives -- Appendix Bibliography. |
Record Nr. | UNINA-9910616357503321 |
Vincent Stéphane
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||
Cham, Switzerland : , : Springer, , [2022] | ||
![]() | ||
Lo trovi qui: Univ. Federico II | ||
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