Report of Workshop on Scientific Issues
File : pdf, 1.6 MB, 74 pages
1. A road map for scientific understanding of multiphase flow
2. Dilute disperse flows
2.1 Phase configurations
2.2 Particle tracking
2.3 Eulerian methods
3. Gas-liquid flow regimes
3.1 A problem in complexity
3.2 Quasi fully-developed flows
3.3 Flow regime transitions
3.4 New issues introduced in mixing flows
3.5 Numerical experiments
3.6 Averaged conservation equations
4. Concentrated solid-fluid systems
4.1. Concentrated ‘fluid-like’ solid-fluid suspensions
4.2 Dense ‘solid-like’ systems
5. Microphysics
5.1 Identification of important microphysics
5.2 Coalescence and breakup
5.3 Altering the behavior of a multiphase system
5.4 Contact lines
5.5 Nucleate boiling
5.6 Heat transfer in microchannels
6. Closure
Acknowledgements
APP 1 – Report of Study Group on Flow Regimes in Multiphase Flows
1. Introduction
2. An overall view
3. Steady, fully-developed, adiabatic flows
3.1 Phase distribution in annular flow
3.2 Slug formation and dynamics
3.3 Transition from dispersed to intermittent flow
3.4 Phase distributions in bubbly flow
4. Mixing flows
5. Simulations: approaches and issues
APP 2 – Report of Study Group on Disperse Flows
1. Introduction
2. Dilute particle laden flows
2.1 Large-eddy simulations
2.2 Fluid-particle interactions
2.3 Particle-particle interactions
2.4 Turbulence modification by particles
2.5 Transition to turbulence
3. Concentrated “fluid-like” suspensions
3.1 Derivation of equations of motion and constitutive equations
3.2 Instabilities of multiphase flows
4. Dense “solid-like” particulate systems
4.1 Interaction of time scales
4.2 Role of particle spin and frictional interactions with boundaries
4.3 Mixing and segregation
5. Concluding remarks
APP 3 – Report of Study Group on Computational Physics
1. Introduction
2. Numerical methods
3. Complexity
4. Conclusions
5. Overview of the individual contributions
APP 4 – Report of Study Group on Microphysics
1. Introduction
2. Critical scientific issues
2.1 Boiling nucleation
2.2 Contact lines
2.3 Microchannels
2.4 Breakup and coalescence
2.5 Effects of surfactants on interfacial flows
2.6 Drag reducing polymers
3. Conclusion
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