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Models of fracture-matrix interactions during multiphase heat and mass flow in unsaturated fractured porous media

机译：不饱和裂缝多孔介质中多相热和质量流动期间骨折 - 基质相互作用的模型

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Models of liquid, gas, and heat flow between fractures and matrix elements in dual-permeability models are presented in this paper. Heterogeneities necessitate scaling the liquid geometric conductance between fracture and matrix elements toaccount for a reduction in the wetted area available for liquid flow while maintaining reasonable conductances for gas and heat flows. The models in this study consisted of conductance multipliers that were either constant, a function of upstreamsaturation, or a function of upstream relative permeability. Numerical analyses were performed using TOUGH2 to determine hydrologic and thermal parameters that are sensitive to the various fracture-matrix models. Results showed that for thermohydrologicsimulations of the potential repository at Yucca Mountain, the ambient hydrology (e.g., matrix liquid saturations and fracture liquid flow) was strongly dependent on the fracture-matrix interaction model. The thermal response of the system was lesssensitive to the different fracture-matrix models in the dual-permeability systems.
机译：本文介绍了裂缝和裂缝和基质元件之间的液体，气体和热流的模型。异质性需要缩放裂缝和基质元件之间的液体几何电导，以减少可用于液体流动的湿润区域，同时保持气体和热流的合理导电。本研究中的模型由导电乘法器组成，其常数，上游饱和度的函数，或上游相对渗透性的函数。使用强韧2进行数值分析以确定对各种裂缝矩阵模型敏感的水文和热参数。结果表明，对于尤卡卡山的潜在储存库，环境水文（例如，基质液体饱和和断裂液体流动）强烈取决于裂缝 - 基质相互作用模型的热水干照学。对双渗透系统中的不同骨折矩阵模型的热响应不太敏感。

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