Electrification of Particulates in Industrial and Natural Multiphase flows, Zhaolin Gu; Wei Wei

Part Ⅰ Particulate charging phenomena in multiphase flows

1 Electrification of particulate in multiphase flows

1.1.1 Transport systems

1.1.3 Particle drying

1.1.5 Electrospray

1.2 Electrification of particulate in natural processes

1.2.1 Wind-blown sand

1.2.2 Lightning in thunderstorm

1.3 Effect of electrification

1.3.1 Mechanical effect of electrification

1.3.2 Thermal effect of electrification

1.3.3 Electromagnetic effect of electrification

1.4 Summary

2 Properties of particulate in multiphase flows

2.1 Particulate forms

2.1.2 particle

2.3 Dilute versus dense flows

2.5 Particulate- Particulate interaction

2.6 Summary

Part Ⅱ Basic theory of droplet charging in multiphase flows

3 Droplet charging ways

3.1 Corona charging

3.2 Contact charging

3.3 Induction charging

4 Basic theory of droplet charging process

4.2 Contact charging process

4.3 Induction charging process

4.4 Summary t Ⅲ Basic theory of particle charging in multiphase flows

5 Particle charging ways

5.1 Electron transfer charging

5.2 Ion transfer of materials containing mobile ions

5.4 Aqueous ion shift on particle surfaces

6 Basic theory of particulate charging in multiphase flows

6.1 Charge transfer by the external electric field.

6.2 Charge transfer by asymmetry contact

6.3 Charge transfer from aqueous ion shift on particle surfaces

6.4 Summary

Part Ⅳ Research methodologies of particulate charging processes

7 Numerical modeling methods for particulate charging processes

7.1 Basic theory of electrostatics

7.1.1 Charge and Coulomb's law

7.1.2 Electric and Gauss theorem

7.1.3 Circulation theorem of electrostatic field

7.1.4 Particulate in electrostatic field

7.2.1 Large eddy simulation (LES) of continuous flow

7.2.3 Numerical methods of tracking the interface between gas/liquid - liquid two phases

7.3 Numerical simulations of charging/charged liquid interface

7.3.1 Governing equations of fluid flow and electric field

7.3.2 Coupling with charging model

7.3.3 Applications of numerical simulation on droplet charging

7.4 Numerical simulations of charging/charged particles

7.4.1 Governing equations of gas-solid two-phase flow

7.4.2 Coupling with charging model

7.5 Summary

8.1 Measurement method of basic electrostatic parameter

Mixed or multiphase flows of solid/liquid or solid/gas are commonly found in many industrial fields, and their behavior is complex and difficult to predict in many cases. The use of computational fluid dynamics (CFD) has emerged as a powerful tool for understanding fluid mechanics in multiphase reactors, which are widely used in the chemical, petroleum, mining, food, automotive, energy, aerospace and pharmaceutical industries. This revised edition is an ideal reference for scientists, MSc students and chemical and mechanical engineers in these areas.

• Includes updated chapters in addition to a brand-new section on Granular Flows
• Features novel solution methods for multiphase flow, along with recent case studies
• Explains how and when to use the featured technique, and how to interpret the results and apply them to improving applications

• Provides a combination of multiphase fluid dynamics, turbulence theory and combustion theory
• Covers physical phenomena, numerical modeling theory and methods, and their applications
• Presents applications in a wide range of engineering facilities, such as utility and industrial furnaces, gas-turbine and rocket engines, internal combustion engines, chemical reactors, and cyclone separators, etc.