本书针对高炉炼铁由于理论认识不充分、缺乏可靠有效的研究手段而造成实际应用过分依赖实践经验的情况，基于国际高炉模拟现状，提出了利用CFD（计算流体力学模型）-DPS（离散颗粒模型）耦合方法建立高炉过程数值仿真模型，并采用不同实验数据对其进行全面验证，最终利用该高炉数学模型更深刻认识高炉和制定实际应用策略。本书共设置八章内容，系统介绍了基于CFD-DPS方法高炉多尺度多相流数学模型的开发并对高炉内部颗粒尺度现象进行了数值解析。

1 Introduction
1.1 Blast furnace ironmaking process
1.2 Raceway zone
1.2.1 Blast furnace raceway
1.2.2 Effect of lateral gas inlet and its stability on raceway
1.3 Thermo-chemical behaviors of iron ore particles in BF
1.3.1 Softening and melting down behaviors
1.3.2 Particle scale reduction behaviors
1.4 Mathematical modelling and numerical approaches for gas-solid flow
1.4.1 TFM and CFD-DEM
1.4.2 CFD-DEM model
1.4.3 Heat transfer models based on CFD-DEM
1.4.4 Gas-solid reaction models
1.5 Mixed layer
1.5.1 Structure and nature of mixed layer
1.5.2 Effect of layer structure
1.5.3 Effect of particle size ratio
1.6 Summary and objectives
2 Discrete particle modelling of lateral jets into a packed bed and micromechanical analysis of the stability of raceways
2.1 Introduction
2.2 Model description
2.3 Simulation conditions
2.4 Results and discussion
2.4.1 Formation of different flow zones and characteristics of different flow states
2.4.2 Effect of bed geometry
2.4.3 Solid velocity at the interface of the funnel and the quasi-static flow zones
2.4.4 Phase diagram based on particle and gas velocities
2.4.5 Effect of discharging settings
2.5 Conclusions
3 Validation of CFD-DEM model for iron ore reduction at particlelevel and parametric study
3.1 Introduction
3.2 Model description
3.3 Simulation conditions
3.4 Results and discussion
3.4.1 Model validation
3.4.2 Effect of gas film resistance (GFR)
3.4.3 Effect of operation parameters
3.5 Conclusions
4 DEM-based virtual experimental blast furnace: A quasi-steady state model
4.1 Introduction
4.2 Model description
4.2.1 Assumptions and treatments in the present model
4.2.2 Numerical solution procedure
4.3 Simulation conditions
4.4 Results and discussion
4.4.1 Different flow zones
4.4.2 Gas and solid temperatures
4.4.3 Characteristics of the CZ and gas utilization
4.4.4 The effect of iron ore properties
4.5 Conclusions
5 A process scaling approach for CFD-DEM modelling of thermochemical behaviors in moving bed reactor
5.1 Introduction
5.2 Model description
5.2.1 Governing equations for discrete solid particles
5.2.2 Governing equations for gas phase
5.2.3 Process scaling and time scales
5.2.4 Derivation of dimensionless governing equations and dimensionless numbers
5.2.5 Scaling correlations, treatments and assumptions
5.3 Simulation conditions
5.4 Results and discussion
5.4.1 Gas-solid flow
5.4.2 Heart transfer
5.4.3 Chemical reactions
5.4.4 Discussion
5.5 Conclusions
6 A transient discrete element method-based virtual experimental blast furnace model
6.1 Introduction
6.2 Model description
6.2.1 Scaling correlations and assumptions
6.2.2 Numerical solution strategy
6.3 Simulation conditions
6.4 Results and discussion
6.4.1 Evolution of the process from an initial state to a steady one
6.4.2 Comparison of the predictions with those of experiments and a CFD BF model
6.4.3 Transient information of iron ore and coke particles
6.4.4 Comparison of process performance indicators
6.5 Conclusions
7 Numerical investigation of mixed layer effect on permeability in a dynamic blast furnace
7.1 Introduction
7.2 Model description
7.3 Simulation conditions
7.4 Results and discussion
7.4.1 General characteristics of mixed layer
7.4.2 The effect of mixed layer on porosity distribution
7.4.3 The effect of mixed layer on pressure drop
7.5 Conclusions
8 Conclusions and further studies
8.1 Conclusions
8.2 Future work
References