地热储层岩体粗糙裂隙的热流耦合效应研究OA北大核心CSTPCD
Thermal-hydraulic coupling effect in rough fractures of geothermal reservoir
为了解决地热开采涉及复杂的多物理场耦合问题,提高开采效率,本文针对开采过程中的渗流-传热问题以离散元软件3DEC构建岩体粗糙裂隙热-流耦合数值模型.考虑不同三维形貌特征的岩体裂隙,模拟水力开度为19.17 µm在不同流速时的水-岩温度变化规律.结果表明:由于裂隙形貌的阻滞作用,粗糙面出水口温度下降较慢,出水口温度有所上升,模型达到稳态所需的时间随流速和对流换热系数的增大而减小.裂隙形貌对流体和岩体温度分布均有影响,粗糙裂隙面的冷锋形态和裂隙面的形…查看全部>>
Concerning complex multiphysics coupling issues involved in geothermal extraction and improving mining efficiency,a numerical model of thermal-fluid coupling in rough rock fractures was constructed using the discrete element software 3DEC to address the seepage-heat transfer problem during extraction.Rock mass cracks with dif-ferent three-dimensional morphological characteristics were considered,and the water-rock temperature change law was simulated with a …查看全部>>
刘先珊;李宇;李满;杨欣
重庆大学土木工程学院,重庆 400045重庆大学土木工程学院,重庆 400045重庆大学土木工程学院,重庆 400045重庆大学土木工程学院,重庆 400045
地球科学
干热岩渗流-传热三维形貌水力开度流速对流换热系数粗糙裂隙面热采率热突破
geothermal reservoirseepage-heat transferthree-dimensional fracture morphologyhydraulic openingflow rateheat transfer coefficientrough fracture surfacethermal recovery ratethermal breakthrough
《哈尔滨工程大学学报》 2024 (5)
852-862,11
国家自然科学基金项目(52279094)山西省交通新技术发展有限公司(SXJTJS-02040-2022-第9号).
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