SMR/ Conference on Structure and Dynamics in Soft Matter and Biomolecules: From Single Molecules to Ensembles.
|
|
|
- Ambrose Melton
- 6 years ago
- Views:
Transcription
1 SMR/ Conference on Structure and Dynamics in Soft Matter and Biomolecules: From Single Molecules to Ensembles 4-8 June 2007 Structure and dynamics in the physics of foams Denis WEAIRE School of Physics Trinity College Dublin 2 IRELAND
2 In memoriam Pierre Gilles de Gennes Nobel Prize Lecture Amusons-nous. Sur la terre et sur l onde Malheureux qui fait son nom! Richesse, Honneurs, faux éclat de ce monde, Tout n est que boules de savon. [Let s have fun. On land and sea, Fame brings nought but troubles, Riches, honours, vain celebrity, Are only soapy bubbles.]
3 Foams (in particular, rheology)
4 Success story: statics/quasistatics We understand many aspects of : - structure - elastic behaviour, onset of plasticity - coarsening - drainage - electrical/thermal conductivity - etc
5 WEAIRE-PHELAN STRUCTURE
6
7 The Water Cube Arup s winning design for the 2008 Beijing Olympics, National Swimming Centre
8 Beijing National Swimming Centre Tristram Carfrae 6500 tonnes of steel Steel beams would stretch for 90kms 4,000 bubbles!
9
10
11
12 It even looks like it is supposed to do
13 VIDEO CLIP April 2007 Beijing Olympic buildings http.//educatedearth.net/video.php?id=3152
14 Joseph Plateau Blind experimentalist Classic text 1873 Rules of equilibrium Wire frame demos
15 Elements of the foam structure Plateau border Dry Foam Junction Wet Foam
16 Ken Brakke Mathematician Surface Evolver facstaff/b/brakke/ John Sullivan, Andy Kraynik The evolver is a spectacular example of the effects of a gift to science which advances a whole field. Alan L. Mackay
17 coarsening drainage collapse rheology
18 Metallurgist Cyril Stanley Smith 2D soap froth Model for grain growth Inspiring influence!
19 Two dimensional foams Gravity s rainbow
20 From statics to dynamics Statics and quasistatics: structure, elasticity, coarsening Dynamics: drainage and rheology
21 New frontiers in foams
22 The Challenge to Theory and Simulation? Local dynamics of bulk liquid, surfaces and gases Chemistry, surface chemistry? Dynamics of structured elements: films, Plateau borders and junctions Physics, local rheology? Continuum description of bulk properties: drainage, rheology (coarsening, collapse) RHEOLOGY
23
24 Rheology with yield stress Steady shear Yield stress=limit stress? Stress = limit stress + X X ~ (strain rate) n, n =?
25 (quasi) 2D foams as a model system for foam rheology simpler and easier than 3D foams! same generic mechanical properties elastic at small strain flow at large strain (hysteretic!) funeous? STRESS T1 events: plasticity Lauridsen applied STRAIN
26 The Experiment of Debregeas Between glass plates Localisation G.Debregeas et al, Physical Review Letters 8717,8305 (2001)
27 A 2d effect: wall drag F ~ v n Mobile Surface n = 2/3 Bretherton Immobile Surface n = 1/2 Denkov et al.
28
29
30 A continuum model? Detailed quasistatic simulations have shown localisation (shear banding) but with some anomalous features. Why not attempt a continuum description?
31 Four key ingredients: Bingham-like constitutive equation: σ = σ 0 f (γ/γ 0 ) + η γ. hysteretic cycle Elastic Plastic viscous f(x) = tanh(x) f (linear) Viscous drag: F=β v σ 0 yield stress η Bingham viscosity β viscous drag coefficient γ/γ F ~ V 2/3 Scaling parameters of the fluid: characteristic length: characteristic velocity:
32 Hence a simple continuum model for quasi 2D foams simple constitutive equation adding viscous drag for quasi 2D foams: III II I & IV D. Weaire, E. Janiaud, S. Hutzler, PRL
![Couette geometry: inner rotating boundary Localisation length varies Vitesse V [V 0 ]](/docs-images/75/72168954/images/33-1.jpg "Increasing shear longueur de localisation [L 0 ] rayon [L 0 ] rayon intérieur R [L 0 ] Vitesse")
33 Couette geometry: inner rotating boundary Localisation length varies Vitesse V [V 0 ] Increasing shear longueur de localisation [L 0 ] rayon [L 0 ] rayon intérieur R [L 0 ] Vitesse V [V 0 ]
![Outer moving boundary angular velocity = v/r Vitesse angulaire I Vitesse angulaire II V [V 0 ] IIIb IIIa II Vitesse angulaire IIIa Vitesse](/docs-images/75/72168954/images/34-1.jpg "angulaire IIIb R [L 0 ] I L [L 0 ] I et IIIa experimentaly observed (Lauridsen prl 2004 &2002) IIIa et IIIb correspond to the straight edge")
34 Outer moving boundary angular velocity = v/r Vitesse angulaire I Vitesse angulaire II V [V 0 ] IIIb IIIa II Vitesse angulaire IIIa Vitesse angulaire IIIb R [L 0 ] I L [L 0 ] I et IIIa experimentaly observed (Lauridsen prl 2004 &2002) IIIa et IIIb correspond to the straight edge case
35 Dynamics with drag? v bubble 1 p 1 v Laplace law: P 1 P 2 = γc p 2 bubble 2 P i γ c -pressure in bubble I -surface tension - curvature λ - drag coefficient v - normal velocity Viscous froth: P 1 P 2 = γc λv
36 Viscous Froth 2
37 Geometric effects in channels quasi static --> no T1 viscous froth --> T1 Experiment increase velocity
38 The Flipper
39 The Zipper
40 The Y-junction
FOAMS IN MICROGRAVITY
FOAMS IN MICROGRAVITY Denis Weaire and Simon Cox Department of Physics, Trinity College, Dublin 2, Ireland dweaire@tcd.ie 1. Introduction Ordinary aqueous foam, which is our main subject in this paper,
FLOWS IN LIQUID FOAMS
FLOWS IN LIQUID FOAMS A finite element approach A. SAUGEY, E. JANIAUD, W. DRENCKHAN, S. HUTZLER, D. WEAIRE Physics Department,, TRINITY COLLEGE DUBLIN Facing a problem of fluid flow in a physical system,
arxiv: v1 [cond-mat.soft] 30 Mar 2017
![arxiv: v1 [cond-mat.soft] 30 Mar 2017](/thumbs/93/112293516.jpg "arxiv: v1 [cond-mat.soft] 30 Mar 2017")
A viscous froth model adapted to wet foams Denny Vitasari a,b, Simon Cox a, a Institute of Mathematics, Physics and Computer Science, Aberystwyth University, UK b Department of Chemical Engineering, Universitas
Modeling Random Wet 2D Foams with Controlled Polydispersity. Back to the Future?
Modeling Random Wet 2D Foams with Controlled Polydispersity Back to the Future? Andy Kraynik Sandia National Labs (retired) CEAS, University of Manchester University of Erlangen-Nuremberg Simon Cox Aberystwyth
Interfacial dynamics
Interfacial dynamics Interfacial dynamics = dynamic processes at fluid interfaces upon their deformation Interfacial rheological properties: elasticity, viscosity, yield stress, Relation between macroscopic
The continuum theory of shear localization in two-dimensional foam
TOPICAL REVIEW The continuum theory of shear localization in two-dimensional foam Denis Weaire, Joseph D. Barry and Stefan Hutzler School of Physics, Trinity College Dublin, Ireland E-mail: stefan.hutzler@tcd.ie
THE PHYSICS OF FOAM. Boulder School for Condensed Matter and Materials Physics. July 1-26, 2002: Physics of Soft Condensed Matter. 1.
THE PHYSICS OF FOAM Boulder School for Condensed Matter and Materials Physics July 1-26, 2002: Physics of Soft Condensed Matter 1. Introduction Formation Microscopics 2. Structure Experiment Simulation
The Large Amplitude Oscillatory Strain Response of Aqueous Foam: Strain Localization and Full Stress Fourier Spectrum
The Large Amplitude Oscillatory Strain Response of Aqueous Foam: Strain Localization and Full Stress Fourier Spectrum By F. Rouyer, S. Cohen-Addad, R. Höhler, P. Sollich, and S.M. Fielding The European
4/14/11. Chapter 12 Static equilibrium and Elasticity Lecture 2. Condition for static equilibrium. Stability An object is in equilibrium:
About Midterm Exam 3 When and where Thurs April 21 th, 5:45-7:00 pm Rooms: Same as Exam I and II, See course webpage. Your TA will give a brief review during the discussion session. Coverage: Chapts 9
Steady Couette flows of elastoviscoplastic fluids are non-unique
Steady Couette flows of elastoviscoplastic fluids are non-unique I. Cheddadi, P. Saramito, and F. Graner 3,4 INRIA Paris - Rocquencourt, BANG team, Domaine de Voluceau, Rocquencourt, B.P. 5, 7853 Le Chesnay,
DIVIDED SYLLABUS ( ) - CLASS XI PHYSICS (CODE 042) COURSE STRUCTURE APRIL
DIVIDED SYLLABUS (2015-16 ) - CLASS XI PHYSICS (CODE 042) COURSE STRUCTURE APRIL Unit I: Physical World and Measurement Physics Need for measurement: Units of measurement; systems of units; SI units, fundamental
University of Hail Faculty of Engineering DEPARTMENT OF MECHANICAL ENGINEERING. ME Fluid Mechanics Lecture notes. Chapter 1
University of Hail Faculty of Engineering DEPARTMENT OF MECHANICAL ENGINEERING ME 311 - Fluid Mechanics Lecture notes Chapter 1 Introduction and fluid properties Prepared by : Dr. N. Ait Messaoudene Based
A drop forms when liquid is forced out of a small tube. The shape of the drop is determined by a balance of pressure, gravity, and surface tension
A drop forms when liquid is forced out of a small tube. The shape of the drop is determined by a balance of pressure, gravity, and surface tension forces. 2 Objectives 3 i i 2 1 INTRODUCTION Property:
FOAM DRAINAGE part 3
FOAM DRAINAGE part 3 gas effect : coupling coarsening and drainage () C 2 F 6 :almost «insoluble», so no coarsening N 2 : much more soluble, significantly faster coarsening Free-drainage, liquid fraction
Fluid Properties and Units
Fluid Properties and Units CVEN 311 Continuum Continuum All materials, solid or fluid, are composed of molecules discretely spread and in continuous motion. However, in dealing with fluid-flow flow relations
2/28/2006 Statics ( F.Robilliard) 1
2/28/2006 Statics (.Robilliard) 1 Extended Bodies: In our discussion so far, we have considered essentially only point masses, under the action of forces. We now broaden our considerations to extended
Liquids and solids are essentially incompressible substances and the variation of their density with pressure is usually negligible.
Properties of Fluids Intensive properties are those that are independent of the mass of a system i.e. temperature, pressure and density. Extensive properties are those whose values depend on the size of
The steady shear of three-dimensional wet polydisperse foams
J. Non-Newtonian Fluid Mech. 92 (2000) 151 166 The steady shear of three-dimensional wet polydisperse foams B.S. Gardiner, B.Z. Dlugogorski, G.J. Jameson Department of Chemical Engineering, The University
Simulations of two-dimensional foam rheology: localization in linear Couette flow and the interaction of settling discs
EPJ manuscript No. (will be inserted by the editor) Simulations of two-dimensional foam rheology: localization in linear Couette flow and the interaction of settling discs A. Wyn, I.T. Davies, and S.J.
Rheology of two dimensional foams in a Taylor-Couette geometry
Chapter 3 Rheology of two dimensional foams in a Taylor-Couette geometry To test and expand the applicability of the drag force balance model developed in the last chapter, we perform experiments on bidisperse
Linear shear of two dimensional foams
Chapter 2 Linear shear of two dimensional foams In this chapter, we first review recent research on the rheology of two dimensional foams. We then describe experiments to unravel the connection between
Lecture 5: Macromolecules, polymers and DNA
1, polymers and DNA Introduction In this lecture, we focus on a subfield of soft matter: macromolecules and more particularly on polymers. As for the previous chapter about surfactants and electro kinetics,
Flow in two-dimensions: novel fluid behavior at interfaces
Flow in two-dimensions: novel fluid behavior at interfaces M. Dennin U. C. Irvine Department of Physics and Astronomy and Institute for Surface and Interfacial Science Research Overview Fluid Instabilities
PHYSICS. Course Structure. Unit Topics Marks. Physical World and Measurement. 1 Physical World. 2 Units and Measurements.
PHYSICS Course Structure Unit Topics Marks I Physical World and Measurement 1 Physical World 2 Units and Measurements II Kinematics 3 Motion in a Straight Line 23 4 Motion in a Plane III Laws of Motion
MECHANICAL PROPERTIES OF FLUIDS:
Important Definitions: MECHANICAL PROPERTIES OF FLUIDS: Fluid: A substance that can flow is called Fluid Both liquids and gases are fluids Pressure: The normal force acting per unit area of a surface is
Lecture 3. Properties of Fluids 11/01/2017. There are thermodynamic properties of fluids like:
11/01/2017 Lecture 3 Properties of Fluids There are thermodynamic properties of fluids like: Pressure, p (N/m 2 ) or [ML -1 T -2 ], Density, ρ (kg/m 3 ) or [ML -3 ], Specific weight, γ = ρg (N/m 3 ) or
9 MECHANICAL PROPERTIES OF SOLIDS
9 MECHANICAL PROPERTIES OF SOLIDS Deforming force Deforming force is the force which changes the shape or size of a body. Restoring force Restoring force is the internal force developed inside the body
Lecture 6: Flow regimes fluid-like
Granular Flows 1 Lecture 6: Flow regimes fluid-like Quasi-static granular flows have plasticity laws, gaseous granular flows have kinetic theory -- how to model fluid-like flows? Intermediate, dense regime:
HYDRAULICS STAFF SELECTION COMMISSION CIVIL ENGINEERING STUDY MATERIAL HYDRAULICS
1 STAFF SELECTION COMMISSION CIVIL ENGINEERING STUDY MATERIAL Syllabus Hydraulics ( Fluid Mechanics ) Fluid properties, hydrostatics, measurements of flow, Bernoulli's theorem and its application, flow
epl draft Couette Flow of Two-Dimensional Foams Gijs Katgert 1, Brian P. Tighe 2, Matthias E. Möbius 1 and Martin van Hecke 1
epl draft Couette Flow of Two-Dimensional Foams Gijs Katgert, Brian P. Tighe 2, Matthias E. Möbius and Martin van Hecke Kamerlingh Onnes Laboratorium, Universiteit Leiden, P.O. Box 954, 23 RA Leiden, The
Measurement of Foam Density Profiles Using AC capacitance.
EUROPHYSICS LETTERS Europhys. Lett., 31 (8), pp. 497-502 (1995) 10 September 1995 Measurement of Foam Density Profiles Using AC capacitance. S. HuTzLER(*)(**), G. VERBIST(**), D. WENRE(*) and J. A. VAN
THE PHYSICS OF FOAM. Boulder School for Condensed Matter and Materials Physics. July 1-26, 2002: Physics of Soft Condensed Matter. 1.
THE PHYSICS OF FOAM Boulder School for Condensed Matter and Materials Physics July 1-26, 2002: Physics of Soft Condensed Matter 1. Introduction Formation Microscopics 2. Structure Experiment Simulation
1. Introduction, fluid properties (1.1, 2.8, 4.1, and handouts)
1. Introduction, fluid properties (1.1, 2.8, 4.1, and handouts) Introduction, general information Course overview Fluids as a continuum Density Compressibility Viscosity Exercises: A1 Fluid mechanics Fluid
Introduction to Marine Hydrodynamics
1896 1920 1987 2006 Introduction to Marine Hydrodynamics (NA235) Department of Naval Architecture and Ocean Engineering School of Naval Architecture, Ocean & Civil Engineering First Assignment The first
Class XI Physics Syllabus One Paper Three Hours Max Marks: 70
Class XI Physics Syllabus 2013 One Paper Three Hours Max Marks: 70 Class XI Weightage Unit I Physical World & Measurement 03 Unit II Kinematics 10 Unit III Laws of Motion 10 Unit IV Work, Energy & Power
Lecture 8 Equilibrium and Elasticity
Lecture 8 Equilibrium and Elasticity July 19 EQUILIBRIUM AND ELASTICITY CHAPTER 12 Give a sharp blow one end of a stick on the table. Find center of percussion. Baseball bat center of percussion Equilibrium
Statics. Phys101 Lectures 19,20. Key points: The Conditions for static equilibrium Solving statics problems Stress and strain. Ref: 9-1,2,3,4,5.
Phys101 Lectures 19,20 Statics Key points: The Conditions for static equilibrium Solving statics problems Stress and strain Ref: 9-1,2,3,4,5. Page 1 The Conditions for Static Equilibrium An object in static
Pharmaceutical compounding I Colloidal and Surface-Chemical Aspects of Dosage Forms Dr. rer. nat. Rebaz H. Ali
University of Sulaimani School of Pharmacy Dept. of Pharmaceutics Pharmaceutical Compounding Pharmaceutical compounding I Colloidal and Surface-Chemical Aspects of Dosage Forms Dr. rer. nat. Rebaz H. Ali
PHYS 101 Lecture 34 - Physical properties of matter 34-1
PHYS 101 Lecture 34 - Physical properties of matter 34-1 Lecture 34 - Physical properties of matter What s important: thermal expansion elastic moduli Demonstrations: heated wire; ball and ring; rulers
1. The Properties of Fluids
1. The Properties of Fluids [This material relates predominantly to modules ELP034, ELP035] 1.1 Fluids 1.1 Fluids 1.2 Newton s Law of Viscosity 1.3 Fluids Vs Solids 1.4 Liquids Vs Gases 1.5 Causes of viscosity
COURSE NUMBER: ME 321 Fluid Mechanics I. Fluid: Concept and Properties
COURSE NUMBER: ME 321 Fluid Mechanics I Fluid: Concept and Properties Course teacher Dr. M. Mahbubur Razzaque Professor Department of Mechanical Engineering BUET 1 What is Fluid Mechanics? Fluid mechanics
NEW HORIZON PRE UNIVERSITY COLLEGE LESSON PLAN FOR THE ACADEMIC YEAR Department of PHYSICS ( I PUC)
NEW HORIZON PRE UNIVERSITY COLLEGE LESSON PLAN FOR THE ACADEMIC YEAR 017 018 Department of PHYSICS ( I PUC) Week --------------------- Month: June Chapter (Physical world) Scope and excitement of Physics
Local description of the two-dimensional flow of foam through a contraction
arxiv:97.952v2 [cond-mat.soft] 24 Dec 29 Local description of the two-dimensional flow of foam through a contraction Benjamin Dollet June 13, 213 Abstract The 2D flow of a foam confined in a Hele-Shaw
Month. March APRIL. The Orchid School Baner Weekly Syllabus Overview Std : XI Subject : Physics. Activities/ FAs Planned.
The Orchid School Baner Weekly Syllabus Overview 2015-2016 Std : XI Subject : Physics Month Lesson / Topic Expected Learning Objective Activities/ FAs Planned Remark March Physical World and Measurement
We may have a general idea that a solid is hard and a fluid is soft. This is not satisfactory from
Chapter 1. Introduction 1.1 Some Characteristics of Fluids We may have a general idea that a solid is hard and a fluid is soft. This is not satisfactory from scientific or engineering point of view. In
Contents. I Introduction 1. Preface. xiii
Contents Preface xiii I Introduction 1 1 Continuous matter 3 1.1 Molecules................................ 4 1.2 The continuum approximation.................... 6 1.3 Newtonian mechanics.........................
Petroleum Engineering Dept. Fluid Mechanics Second Stage Dr. Ahmed K. Alshara
Continents Chapter 1. Fluid Mechanics -Properties of fluids -Density, specific gravity, specific volume and Viscosity -Newtonian and non Newtonian fluids -Surface tension Compressibility -Pressure -Cavitations
Rotational viscometers
42 Non-Newtonian Flow in the Process Industries Rotational viscometers Due to their relative importance as tools for the rheological characterisation of non-newtonian fluid behaviour, we concentrate on
RHEOLOGY Principles, Measurements, and Applications. Christopher W. Macosko
RHEOLOGY Principles, Measurements, and Applications I -56081-5'79~5 1994 VCH Publishers. Inc. New York Part I. CONSTITUTIVE RELATIONS 1 1 l Elastic Solid 5 1.1 Introduction 5 1.2 The Stress Tensor 8 1.2.1
Introduction and Fundamental Concepts (Lectures 1-7)
Introduction and Fundamental Concepts (Lectures -7) Q. Choose the crect answer (i) A fluid is a substance that (a) has the same shear stress at a point regardless of its motion (b) is practicall incompressible
MECHANICAL PROPERTIES
MECHANICAL PROPERTIES Rheology S.C. BAYNE, 1 J.Y. Thompson 2 1 University of Michigan School of Dentistry, Ann Arbor, MI 48109-1078 sbayne@umich.edu 2 Nova Southeastern College of Dental Medicine, Ft.
MECHANICAL PROPERTIES OF FLUIDS
CHAPTER-10 MECHANICAL PROPERTIES OF FLUIDS QUESTIONS 1 marks questions 1. What are fluids? 2. How are fluids different from solids? 3. Define thrust of a liquid. 4. Define liquid pressure. 5. Is pressure
Pressures in periodic foams
101098/rspa20031171 Pressures in periodic foams By D Weaire 1, N Kern 1,SJCox 1, J M Sullivan 2 and F Morgan 3 1 Physics Department, Trinity College Dublin, College Green, Dublin 2, Ireland (denisweaire@tcdie;
CHAPTER 1 Fluids and their Properties
FLUID MECHANICS Gaza CHAPTER 1 Fluids and their Properties Dr. Khalil Mahmoud ALASTAL Objectives of this Chapter: Define the nature of a fluid. Show where fluid mechanics concepts are common with those
Middle East Technical University Department of Mechanical Engineering ME 305 Fluid Mechanics I Fall 2018 Section 4 (Dr.
Reading Assignments Middle East Technical University Department of Mechanical Engineering ME 305 Fluid Mechanics I Fall 2018 Section 4 (Dr. Sert) Study Set 1 You can find the answers of some of the following
Contents. Preface XIII. 1 General Introduction 1 References 6
VII Contents Preface XIII 1 General Introduction 1 References 6 2 Interparticle Interactions and Their Combination 7 2.1 Hard-Sphere Interaction 7 2.2 Soft or Electrostatic Interaction 7 2.3 Steric Interaction
Rheology, or the study of the flow of matter. Panta rei. (Panta rhei)
Rheology, or the study of the flow of matter Panta rei (Panta rhei) Overview Basics of rheology Linear elasticity Linear viscosity Linear viscoelasticity To infinity... and beyond! Coming back to Earth
Lecture 7: Rheology and milli microfluidic
1 and milli microfluidic Introduction In this chapter, we come back to the notion of viscosity, introduced in its simplest form in the chapter 2. We saw that the deformation of a Newtonian fluid under
Interfacial Shear Rheology of Films Formed by Coffee
ANNUAL TRANSACTIONS OF THE NORDIC RHEOLOGY SOCIETY, VOL. 16, 2008 Interfacial Shear Rheology of Films Formed by Coffee Patrick Heyer, Jörg Läuger Anton Paar Germany GmbH, Helmuth-Hirth-Strasse 6, 73760
ME 262 BASIC FLUID MECHANICS Assistant Professor Neslihan Semerci Lecture 4. (Buoyancy and Viscosity of water)
ME 262 BASIC FLUID MECHANICS Assistant Professor Neslihan Semerci Lecture 4 (Buoyancy and Viscosity of water) 16. BUOYANCY Whenever an object is floating in a fluid or when it is completely submerged in
Petroleum Engineering Department Fluid Mechanics Second Stage Assist Prof. Dr. Ahmed K. Alshara
Continents Petroleum Engineering Department Fluid Mechanics Second Stage Assist Prof. Dr. Ahmed K. Alshara Chapter 1. Fluid Mechanics -Properties of fluids -Density, specific gravity, specific volume and
LECTURE 4 FLUID FLOW & SURFACE TENSION. Lecture Instructor: Kazumi Tolich
LECTURE 4 FLUID FLOW & SURFACE TENSION Lecture Instructor: Kazumi Tolich Lecture 4 2 Reading chapter 15.6 to 15.9 Continuity equation Bernoulli s equation n Torricelli s law Viscosity Surface tension Equation
Hysteresis and avalanches in two-dimensional foam rheology simulations
PHYSICAL REVIEW E VOLUME 59, NUMBER 5 MAY 1999 Hysteresis and avalanches in two-dimensional foam rheology simulations Yi Jiang, 1, * Pieter J. Swart, 1 Avadh Saxena, 1 Marius Asipauskas, 2 and James A.
Flow transitions in two-dimensional foams
Flow transitions in two-dimensional foams Christopher Gilbreth, Scott Sullivan, and Michael Dennin Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697-4575
arxiv: v1 [cond-mat.soft] 27 Apr 2018
![arxiv: v1 [cond-mat.soft] 27 Apr 2018](/thumbs/83/87308805.jpg "arxiv: v1 [cond-mat.soft] 27 Apr 2018")
Ideal wet two-dimensional foams and emulsions with finite contact angle S.J. Cox (a), A.M. Kraynik (b,c), D. Weaire (c) and S. Hutzler (c) (a) Department of Mathematics, Aberystwyth University, Aberystwyth
An-Najah National University Civil Engineering Department. Fluid Mechanics. Chapter 1. General Introduction
1 An-Najah National University Civil Engineering Department Fluid Mechanics Chapter 1 General Introduction 2 What is Fluid Mechanics? Mechanics deals with the behavior of both stationary and moving bodies
Towards hydrodynamic simulations of wet particle systems
The 7th World Congress on Particle Technology (WCPT7) Towards hydrodynamic simulations of wet particle systems Sudeshna Roy a*, Stefan Luding a, Thomas Weinhart a a Faculty of Engineering Technology, MESA+,
AMME2261: Fluid Mechanics 1 Course Notes
Module 1 Introduction and Fluid Properties Introduction Matter can be one of two states: solid or fluid. A fluid is a substance that deforms continuously under the application of a shear stress, no matter
D.A.V. PUBLIC SCHOOL, UPPAL S SOUTHEND, SECTOR 49, GURUGRAM CLASS XI (PHYSICS) Academic plan for
D.A.V. PUBLIC SCHOOL, UPPAL S SOUTHEND, SECTOR 49, GURUGRAM CLASS XI (PHYSICS) Academic plan for 2017-2018 UNIT NAME OF UNIT WEIGHTAGE 1. 2. 3. Physical World and Measurement Kinemetics Laws of Motion
Chapter 12. Static Equilibrium and Elasticity
Chapter 12 Static Equilibrium and Elasticity Static Equilibrium Equilibrium implies that the object moves with both constant velocity and constant angular velocity relative to an observer in an inertial
Question Figure shows the strain-stress curve for a given material. What are (a) Young s modulus and (b) approximate yield strength for this material?
Question. A steel wire of length 4.7 m and cross-sectional area 3.0 x 10-5 m 2 stretches by the same amount as a copper wire of length 3.5 m and cross-sectional area of 4.0 x 10-5 m 2 under a given load.
Lecture 2. Simple shear devices. Simple shear devices 2. Simple shear devices 3. Moving plate. Velocity V. Force F. Area A. height h.
Lecture 2 Rheometry Simple shear devices Steady shear viscosity Normal stresses Oscillating shear Extensional viscosity Scalings Nondimensional parameter Simple shear devices Conceptual device for simple
Agricultural Science 1B Principles & Processes in Agriculture. Mike Wheatland
Agricultural Science 1B Principles & Processes in Agriculture Mike Wheatland (m.wheatland@physics.usyd.edu.au) Outline - Lectures weeks 9-12 Chapter 6: Balance in nature - description of energy balance
Flow of Glasses. Peter Schall University of Amsterdam
Flow of Glasses Peter Schall University of Amsterdam Liquid or Solid? Liquid or Solid? Example: Pitch Solid! 1 day 1 year Menkind 10-2 10 0 10 2 10 4 10 6 10 8 10 10 10 12 10 14 sec Time scale Liquid!
Extended large-q Potts model simulation of foam drainage
PHILOSOPHICAL MAGAZINE LETTERS, 1996, VOL. 74, NO. 2, 119±128 Extended large-q Potts model simulation of foam drainage By YI JIANG and JAMES A. GLAZIER Department of Physics, University of Notre Dame,
MHA042 - Material mechanics: Duggafrågor
MHA042 - Material mechanics: Duggafrågor 1) For a static uniaxial bar problem at isothermal (Θ const.) conditions, state principle of energy conservation (first law of thermodynamics). On the basis of
Module 3: "Thin Film Hydrodynamics" Lecture 11: "" The Lecture Contains: Micro and Nano Scale Hydrodynamics with and without Free Surfaces
The Lecture Contains: Micro and Nano Scale Hydrodynamics with and without Free Surfaces Order of Magnitude Analysis file:///e /courses/colloid_interface_science/lecture11/11_1.htm[6/16/2012 1:39:56 PM]
CENG 501 Examination Problem: Estimation of Viscosity with a Falling - Cylinder Viscometer
CENG 501 Examination Problem: Estimation of Viscosity with a Falling - Cylinder Viscometer You are assigned to design a fallingcylinder viscometer to measure the viscosity of Newtonian liquids. A schematic
Capillarity and Wetting Phenomena
? Pierre-Gilles de Gennes Frangoise Brochard-Wyart David Quere Capillarity and Wetting Phenomena Drops, Bubbles, Pearls, Waves Translated by Axel Reisinger With 177 Figures Springer Springer New York Berlin
arxiv:cond-mat/ v1 [cond-mat.soft] 2 Jan 2003
![arxiv:cond-mat/ v1 [cond-mat.soft] 2 Jan 2003](/thumbs/71/65985186.jpg "arxiv:cond-mat/ v1 [cond-mat.soft] 2 Jan 2003")
A texture tensor to quantify deformations: the example of two-dimensional flowing foams Marius Asipauskas 1, Miguel Aubouy 2, James A. Glazier 1, François Graner 3, and Yi Jiang 4 1 Dept. of Physics, 316
OCR Physics Specification A - H156/H556
OCR Physics Specification A - H156/H556 Module 3: Forces and Motion You should be able to demonstrate and show your understanding of: 3.1 Motion Displacement, instantaneous speed, average speed, velocity
Chapter 1 Fluid Characteristics
Chapter 1 Fluid Characteristics 1.1 Introduction 1.1.1 Phases Solid increasing increasing spacing and intermolecular liquid latitude of cohesive Fluid gas (vapor) molecular force plasma motion 1.1.2 Fluidity
Pharmaceutics I. Unit 6 Rheology of suspensions
Pharmaceutics I اينالديصيدلينيات 1 Unit 6 Rheology of suspensions 1 Rheology, the science of the flow or deformation of matter (liquid or soft solid) under the effect of an applied force. It addresses
Cumulative weight retained
A sample of 1000 g of soil from a site was performed sieve analysis. The weights of soil collected on each sieve are presented in the tabular entry. Find effective diameter, D 30, D 60 and coefficients
Shell Balances in Fluid Mechanics
Shell Balances in Fluid Mechanics R. Shankar Subramanian Department of Chemical and Biomolecular Engineering Clarkson University When fluid flow occurs in a single direction everywhere in a system, shell
CLASS SCHEDULE 2013 FALL
CLASS SCHEDULE 2013 FALL Class # or Lab # 1 Date Aug 26 2 28 Important Concepts (Section # in Text Reading, Lecture note) Examples/Lab Activities Definition fluid; continuum hypothesis; fluid properties
Fluid Mechanics Introduction
Fluid Mechanics Introduction Fluid mechanics study the fluid under all conditions of rest and motion. Its approach is analytical, mathematical, and empirical (experimental and observation). Fluid can be
CE MECHANICS OF FLUIDS UNIT I
CE 6303- MECHANICS OF FLUIDS UNIT I 1. Define specific volume of a fluid and write its unit [N/D-14][M/J-11] Volume per unit mass of a fluid is called specific volume. Unit: m3 / kg. 2. Name the devices
Dry and wet granular flows. Diego Berzi
Dry and wet granular flows Diego Berzi Outline 2 What? Why? How? When? Who? Where? Then? What? Granular flows many solid moving particles 3 particle mass is large (at least 10 20 molecular masses). Hence,
Chapter 3. Load and Stress Analysis
Chapter 3 Load and Stress Analysis 2 Shear Force and Bending Moments in Beams Internal shear force V & bending moment M must ensure equilibrium Fig. 3 2 Sign Conventions for Bending and Shear Fig. 3 3
Current Opinion in Colloid & Interface Science
Current Opinion in Colloid & Interface Science 15 (2010) 341 358 Contents lists available at ScienceDirect Current Opinion in Colloid & Interface Science journal homepage: www.elsevier.com/locate/cocis
emulsions, and foams March 21 22, 2009
Wetting and adhesion Dispersions in liquids: suspensions, emulsions, and foams ACS National Meeting March 21 22, 2009 Salt Lake City Ian Morrison 2009 Ian Morrison 2009 Lecure 2 - Wetting and adhesion
1 FLUIDS AND THEIR PROPERTIES
FLUID MECHANICS CONTENTS CHAPTER DESCRIPTION PAGE NO 1 FLUIDS AND THEIR PROPERTIES PART A NOTES 1.1 Introduction 1.2 Fluids 1.3 Newton s Law of Viscosity 1.4 The Continuum Concept of a Fluid 1.5 Types
MAE 3130: Fluid Mechanics Lecture 7: Differential Analysis/Part 1 Spring Dr. Jason Roney Mechanical and Aerospace Engineering
MAE 3130: Fluid Mechanics Lecture 7: Differential Analysis/Part 1 Spring 2003 Dr. Jason Roney Mechanical and Aerospace Engineering Outline Introduction Kinematics Review Conservation of Mass Stream Function
University Graz / Austria Institut für Chemie Volker Ribitsch
University Graz / Austria Institut für Chemie Volker Ribitsch 1 Rheology Oscillatory experiments Dynamic experiments Deformation of materials under non-steady conditions in the linear viscoelastic range
ACE Engineering College
ACE Engineering College Ankushapur (V), Ghatkesar (M), R.R.Dist 501 301. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * MECHANICS OF FLUIDS & HYDRAULIC
Rheology of aqueous foams
Rheology of aqueous foams Benjamin Dollet, Christophe Raufaste To cite this version: Benjamin Dollet, Christophe Raufaste. Rheology of aqueous foams. Comptes rendus de l Académie des sciences. Série IV,
Scaling Law I. BioSensing & BioMEMS 530/ Jeff Wang Johns Hopkins University 1
Scaling Law I Jeff Wang Johns Hopkins University 1 Why scaling is important at the micro and nano scale Micro and nano devices are orders of magnitude smaller than macro counterparts As the sizes shrink,
Table of Contents. Foreword... xiii. Preface... xv
Table of Contents Foreword.... xiii Preface... xv Chapter 1. Fundamental Equations, Dimensionless Numbers... 1 1.1. Fundamental equations... 1 1.1.1. Local equations... 1 1.1.2. Integral conservation equations...
Three-dimensional bubble clusters: shape, packing and growth-rate
arxiv:cond-mat/0309107v3 [cond-mat.soft] 28 Nov 2003 Three-dimensional bubble clusters: shape, packing and growth-rate S.J. Cox 1 and F. Graner 2 1 Department of Pure and Applied Physics, Trinity College,