Fundamental Investigation of Interactions of Temperature, Pore Water Pressure, and Pore Fluid Flow in Soil Media

土壤介质中温度、孔隙水压力和孔隙流体流动相互作用的基础研究

基本信息

项目摘要

Temperature change induces a variety of changes in soils, including volumetric change in saturated clays and clay mixtures, changes in permeability, and special variation in fluid density leading to induced flow. The aim of this research is to investigate the fundamental interaction of temperature, water pressure, and pore fluid flow in soil through integrated experimental and computational models. The knowledge generated through this research will be utilized to optimize the design and construction of nuclear waste disposal facilities, geothermal boreholes, and other energy geo-structures. The outcomes of the research, and the results of advanced numerical model and laboratory controlled experiments, will be essential for applications of thermal-hydraulic-mechanical-chemical (THMC) modeling in civil engineering (e.g., underground structures, deep geothermal power plants, and construction in permafrost areas). The results of the experimental models can also be useful to predict the permeability changes of landfills due to chemical reactions and daily temperature variations to have a better estimation of leakage based on the temperature dependent permeability. The expected research findings may also help to improve the current design codes and methodologies for underground structures surrounding heat sources. The education and outreach activities of this project will provide both K-12 and college students from underrepresented groups with opportunities to be exposed to STEM disciplines and careers. The personnel on this project will provide guidance to graduate students considering careers in academia and research. This study also help to enhance the research literacy of the Commonwealth of Kentucky, one of the EPSCoR states. The goal of this research is to comprehensively study temperature effects on soil behavior. Soil hydraulic conductivity varies with temperature. This happens not only because of changes in fluid density and viscosity, temperature might alter the soil fabric and porosity in both sand and clay as well. Temperature increments in unsaturated media result in drying soil and moisture content reduction close to the heat sources. However, temperature changes in saturated sand make the spatial variation in fluid mass density. Such a variation results in buoyancy-driven flow and, creates thermally driven pore fluid flow. The thermally induced pore fluid flow in sand facilitates heat transfer in the ground and results in heat convection even under hydrostatic condition. Therefore, induced pore fluid flow must be considered to accurately model the heat transfer in the ground. The interaction of heat and fluid flows needs to be investigated in high permeable soil. On the other hand, heat flow results in permeability variation and volumetric changes which will result in thermal consolidation in low permeable ground (e.g., clay). Four main tasks are planned to accomplish the research goal: (1) Predicting permeability variation of different soil types (e.g. sand and clay with different void ratios) under different confining stresses using a temperature controlled cell; (2) Analyzing volumetric changes and thermal consolidation for different temperature increments in clays; (3) Studying the effect of thermally induced pore fluid flow on soil temperature response in high permeable soil; and (4) Predicting the interaction of heat and fluid flow in porous media while considering time and temperature dependent soil and fluid properties. The outcomes of the current study will be useful for Multiphysics and flow in porous media.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
温度变化引起土壤的各种变化,包括饱和粘土和粘土混合物的体积变化,渗透性的变化,以及导致诱导流的流体密度的特殊变化。本研究的目的是通过综合实验和计算模型来研究土壤中温度、水压力和孔隙流体流动的基本相互作用。 通过这项研究产生的知识将用于优化核废料处理设施,地热钻孔和其他能源地质结构的设计和建设。 研究结果以及先进的数值模型和实验室控制实验的结果对于土木工程中的热-水力-机械-化学(THMC)建模应用至关重要(例如,地下结构、深层地热发电厂和永久冻土区的建筑)。 实验模型的结果也可以是有用的,以预测填埋场的渗透性变化,由于化学反应和每日的温度变化有一个更好的估计泄漏的基础上的温度依赖的渗透性。 研究成果对完善现有的热源周围地下结构设计规范和方法有一定的参考价值。 该项目的教育和推广活动将为来自代表性不足群体的K-12和大学生提供接触STEM学科和职业的机会。 该项目的工作人员将为考虑从事学术和研究工作的研究生提供指导。本研究也有助于提高EPSCoR州之一的肯塔基州的研究素养。本研究的目的是全面研究温度对土壤行为的影响。 土壤导水率随温度变化。 这不仅是因为流体密度和粘度的变化,温度也可能改变沙子和粘土中的土壤结构和孔隙度。 非饱和介质中的温度升高导致热源附近土壤干燥和含水量降低。 而饱和砂土中温度的变化则会引起流体质量密度的空间变化。这种变化导致浮力驱动的流动,并产生热驱动的孔隙流体流动。热致孔隙流体在砂土中的流动促进了土壤中的热传递,即使在静水条件下也会产生热对流。 因此,必须考虑诱导孔隙流体流动,以准确地模拟地下热传递。 在高渗透性土壤中,需要研究热量和流体流动的相互作用。 另一方面,热流导致渗透性变化和体积变化,这将导致低渗透性地面(例如,粘土)。 为实现这一研究目标,本文主要做了以下四个方面的工作:(1)预测不同土壤类型的渗透性变化(2)分析了不同温度增量下粘性土的体积变化和热固结;(3)研究高渗透性土壤中热致孔隙流体流动对土壤温度响应的影响;(4)考虑土壤和流体性质随时间和温度的变化,预测多孔介质中热与流体的相互作用。 目前的研究成果将有助于多孔介质中的多物理场和流动。该奖项反映了NSF的法定使命,并被认为值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估来支持。

项目成果

期刊论文数量(18)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Natural convection effect on heat transfer in saturated soils under the influence of confined and unconfined subsurface flow
  • DOI:
    10.1016/j.applthermaleng.2023.121805
  • 发表时间:
    2023-10
  • 期刊:
  • 影响因子:
    6.4
  • 作者:
    Fereydoun Najafian Jazi;Omid Ghasemi-Fare;T. Rockaway
  • 通讯作者:
    Fereydoun Najafian Jazi;Omid Ghasemi-Fare;T. Rockaway
Assessment of Thermo-Osmosis Effect on Thermal Pressurization in Saturated Porous Media
饱和多孔介质中热渗透效应的评估
Comparison of thermo-poroelastic and thermo-poroelastoplastic constitutive models to analyze THM process in clays
比较热多孔弹性和热多孔弹塑性本构模型来分析粘土中的 THM 过程
  • DOI:
    10.1051/e3sconf/202020504008
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Mir Tamizdoust, Mohammadreza;Ghasemi-Fare, Omid
  • 通讯作者:
    Ghasemi-Fare, Omid
Assessment of thermal, hydraulic, and mechanical constitutive relations on the temperature-induced stress and pore fluid pressure in saturated clays
饱和粘土中温度引起的应力和孔隙流体压力的热、水力和机械本构关系的评估
  • DOI:
    10.1016/j.compgeo.2022.104686
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    5.3
  • 作者:
    Tamizdoust, Mohammadreza Mir;Ghasemi-Fare, Omid
  • 通讯作者:
    Ghasemi-Fare, Omid
Coupled Thermo-Hydro-Mechanical Modeling of Saturated Boom Clay
饱和繁荣粘土的热-水-机械耦合建模
  • DOI:
    10.1061/9780784482827.038
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Tamizdoust, Mohammadreza Mir;Ghasemi-Fare, Omid
  • 通讯作者:
    Ghasemi-Fare, Omid
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Omid Ghasemi-Fare其他文献

Understanding the impact of flow mechanisms in unsaturated layer on heat transfer near a partially submerged geothermal heat exchanger
  • DOI:
    10.1016/j.renene.2024.121313
  • 发表时间:
    2024-11-01
  • 期刊:
  • 影响因子:
  • 作者:
    Fereydoun Najafian Jazi;Omid Ghasemi-Fare;Thomas D. Rockaway
  • 通讯作者:
    Thomas D. Rockaway
Numerical investigation of the effects of geometric and seismic parameters on liquefaction-induced lateral spreading
  • DOI:
    10.1016/j.soildyn.2016.08.014
  • 发表时间:
    2016-10-01
  • 期刊:
  • 影响因子:
  • 作者:
    Omid Ghasemi-Fare;Ali Pak
  • 通讯作者:
    Ali Pak
Numerical investigation of various nanofluid heat transfers in microchannel under the effect of partial magnetic field: lattice Boltzmann approach
  • DOI:
    10.1007/s10973-019-08862-w
  • 发表时间:
    2019-10-01
  • 期刊:
  • 影响因子:
    3.100
  • 作者:
    Abouzar Moshfegh;Abbasali Abouei Mehrizi;Ashkan Javadzadegan;Mohammad Joshaghani;Omid Ghasemi-Fare
  • 通讯作者:
    Omid Ghasemi-Fare
Quantitative investigation of temperature-dependent bound water degeneration in bentonite clays
  • DOI:
    10.1016/j.enggeo.2024.107737
  • 发表时间:
    2024-11-01
  • 期刊:
  • 影响因子:
  • 作者:
    Nilufar Chowdhury;Omid Ghasemi-Fare
  • 通讯作者:
    Omid Ghasemi-Fare
Comparison of mixed convection effects in summer and winter on the energy efficiency of energy piles
夏季和冬季混合对流效应对能量桩能效的影响比较
  • DOI:
    10.1016/j.renene.2025.123138
  • 发表时间:
    2025-08-01
  • 期刊:
  • 影响因子:
    9.100
  • 作者:
    Makan Fattahian;Mohammad H. Sobhdam;Mohammad M. Ahmadi;Omid Ghasemi-Fare
  • 通讯作者:
    Omid Ghasemi-Fare

Omid Ghasemi-Fare的其他文献

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{{ truncateString('Omid Ghasemi-Fare', 18)}}的其他基金

RAPID: Critical data collection from a flash flooding event in Eastern Kentucky
RAPID:肯塔基州东部山洪暴发事件的关键数据收集
  • 批准号:
    2300627
  • 财政年份:
    2022
  • 资助金额:
    $ 26.04万
  • 项目类别:
    Standard Grant

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Investigation of the role of the Type VII secretion systems in Staphylococcus aureus-macrophage interactions
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Investigation of Structure-Property Relationships in Canted Antiferromagnetic Molecular Conductors by Fine Control of Intermolecular Interactions
通过分子间相互作用的精细控制研究倾斜反铁磁分子导体的结构-性能关系
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Inter-Brain Coupling in Social Interactions can be Augmented by Environmental Factors: a hyperscanning investigation.
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Investigation of donor/acceptor interactions toward high-performance organic near-infrared (NIR) lasers beyond 900 nm
研究超过 900 nm 的高性能有机近红外 (NIR) 激光器的供体/受体相互作用
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