天然气水合物分解多物理化学场耦合机理的孔隙尺度研究

第1章绪论
1.1研究背景及意义
1.2研究现状及分析
1.2.1天然气水合物分解控制机制研究现状
1.2.2天然气水合物生产预测模型研究现状
1.2.3孔隙尺度多场耦合问题数值方法研究现状
1.3研究内容及方法 第2章多场耦合格子玻尔兹曼方法的建立与验证
2.1引论
2.2天然气水合物分解过程涉及的多物理问题及控制方程
2.3基于格子玻尔兹曼方法的多场耦合数值模型
2.3.1多组分多相伪势模型
2.3.2跨相传质模型及非均相反应边界处理
2.3.3共轭传热模型
2.3.4固相演化模型
2.3.5多场耦合数值计算流程
2.4多场耦合数值模型的验证
2.4.1热力学一致性验证及杨拉普拉斯实验
2.4.2多相泊肃叶流动数值模拟
2.4.3方腔内反应传质过程计算
2.4.4封闭区域内的CO2溶解过程计算
2.4.5Rayleigh-Bernard自然对流计算
2.5本章小结 第3章天然气水合物分解过程传热传质控制机理分析
3.1引论
3.2物理模型及计算参数
3.3计算结果及讨论
3.3.1水合物分解控制机理分析
3.3.2孔隙尺度水合物分解实验的数值模拟研究
3.3.3考虑传质限制作用的修正反应动力学模型
3.4本章小结 第4章跨相传质CST-LB模型的建立与验证
4.1引论
4.2跨相传质CST-LB数值模型
4.3CST-LB模型的验证
4.3.1相界面处的浓度阶跃数值模拟
4.3.2封闭区域内气体溶解数值模拟
4.3.3毛细管驱替过程组分输运数值模拟
4.3.4多孔介质多相传质问题数值模拟
4.4非均相反应边界格式及改进的润湿边界格式
4.4.1CST-LB非均相反应边界处理格式
4.4.2多组分伪势模型润湿性边界格式的改进
4.5多相体系中非均相反应数值模拟的比较研究
4.5.1三种伪势模型润湿性边界格式的比较
4.5.2考虑非均相反应的一维多相传质问题
4.5.3有液滴覆盖的圆柱体溶解问题
4.5.4毛细管驱替过程的反应传质问题
4.5.5多孔介质中的多相溶解问题
4.6本章小结 第5章天然气水合物在气水运移过程中的分解规律研究
5.1引论
5.2物理问题及数值模型
5.3计算结果及讨论
5.3.1纯单相流动工况下水合物分解模式及控制机制
5.3.2多相流动工况下水合物分解模式及控制机制
5.3.3考虑气水运移影响的水合物分解模式图
5.3.4考虑分解模式的渗流模型及水合物表面积模型
5.4本章小结 第6章结论与展望
6.1结论
6.2本书的创新点
6.3研究展望 参考文献 致谢 Contents Chapter 1Introduction
1.1Research background
1.2Current state of research
1.2.1Methane hydrate controlling mechanisms
1.2.2Methane hydrate production prediction models
1.2.3Numerical methods for multiple physicochemical coupling problems at the pore scale
1.3Research content and methods Chapter 2Establishment and Verification of Lattice Boltzmann Method for Multiple Physicochemical Coupling Problems
2.1Introduction of this chapter
2.2Physical problems and governing equations involved in the methane hydrate dissociation process
2.3Multiple physicochemical numerical models based on the lattice Boltzmann method
2.3.1Multi-component multiphase pseudopotential model
2.3.2Interfacial mass transfer model and heterogeneous reaction boundary treatment
2.3.3Conjugate heat transfer model
2.3.4Solid evolution model
2.3.5Numerical implementation
2.4Verification of the numerical models
2.4.1Thermodynamic consistency and Young-Laplace test
2.4.2Multiphase Poiseuille flow
2.4.3Reactive mass transfer in a square cavity
2.4.4CO2 dissolution in a closed system
2.4.5Rayleigh-Bernard natural convection
2.5Summary of this chapter Chapter 3Analysis of Heat and Mass Transfer Mechanisms during the Methane Hydrate Dissociation Process
3.1Introduction of this chapter
3.2Physical problems and numerical parameters
3.3Numerical results and discussion
3.3.1Controlling mechanisms of methane hydrate dissociation
3.3.2Numerical simulation of dissociation experiments
3.3.3Kinetics model considering the mass transfer limitation
3.4Summary of this chapter Chapter 4Establishment and Verification of CST-LB Model for the Interfacial Mass Transfer
4.1Introduction of this chapter
4.2CST-LB model for the interfacial mass transfer
4.3Verification of the CST-LB model
4.3.1Concentration jump at the phase interface
4.3.2Gas dissolution in a closed system
4.3.3Reactive transport during drainage in a capillary tube
4.3.4Multiphase reactive transport in the porous media
4.4Heterogeneous reaction boundary treatment and improved wetting boundary scheme
4.4.1Heterogeneous reaction boundary for CST-LB model
4.4.2Improvement of wetting boundary treatment for Multi-component pseudopotential model 4.5Comparative study of multiphase reactive transport numerical simulations
4.5.1Comparison of wetting boundary treatments
4.5.2One-dimensional multiphase mass transfer with heterogeneous chemical reaction
4.5.3Cylinder dissolution covered with a droplet
4.5.4Reactive transport in capillary displacement process
4.5.5Multiphase dissolution process in the porous media
4.6Summary of this chapter Chapter 5Investigation on the Methane Hydrate Dissociation Dynamics Considering Gas-Water Migration
5.1Introduction of this chapter
5.2Physical problems and numerical models
5.3Numerical results and discussion
5.3.1Methane hydrate dissociation mechanisms under Single-phase flow conditions
5.3.2Methane hydrate dissociation mechanisms under multiphase flow conditions
5.3.3Methane hydrate dissociation regime diagram considering the gas-water migration
5.3.4Permeability model and hydrate surface area model
5.4Summary of this chapter Chapter 6Conclusions and Perspectives
6.1Conclusions
6.2Innovation points of this book
6.3Perspectives References Acknowledgements