课题基金 / 基金详情

Factors Controlling Solute Dilution in Heterogeneous Formations

Factors Controlling Solute Dilution in Heterogeneous Formations
控制非均质地层中溶质稀释的因素
批准号:
9522651
负责人:
Peter Kitanidis
金额:
$11.91万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1997
资助国家:
美国
项目状态:
已结题
起止时间:
1997-02-15 至 1999-07-31

项目摘要

项目成果

Peter Kitanidis的其他基金

相似基金

相关文献

中文摘要
翻译
点击翻译按钮获取中文摘要
英文摘要
9522651 Kitanidis The objective of the proposed research is to quantify the interaction of heterogeneity in soil hydraulic conductivity, local dispersion, and other factors in controlling the temporal behavior of dilution in porous media. Although the effect of heterogeneity on the spreading of plumes of dissolved chemicals has been studied extensively, the effect of heterogeneity on dilution of contaminants remains to be determined, especially at "early" times, which are relevant in tracer tests and remediation projects. Dilution is quantified by measures such as the peak concentration and the volume occupied by solute. Spreading is quantified by the spatial second moment of the concentration distribution. In assessing environmental impacts of groundwater contamination, if is important to be able to anticipate peak concentration in addition to the spatial extent of contamination. In this work, we will conduct theoretical analysis, detailed numerical experiments, and comparisons with field data. Contaminant dilution measures will be related to the porous media constitutive parameters and, primarily, the variability of hydraulic conductivity. Predictions of dilution will be made via analytical approximations or "closures" which lead to deterministic equations and through variational analysis. The performance of the approximations will be numerically assessed and the results will be evaluated by comparison with results from field experiments. The contribution of this work will be a better understanding of the time-evolution of contaminant concentration levels in heterogeneous porous media, and guidance to the practitioner to assess dilution of contaminants in the subsurface environment.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Collaborative Research: Fundamental Research on Oscillatory Flow in Hydrogeology
  • 批准号:
    1215742
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $22.57万
  • 财政年份:
    2012
  • 负责人:
    Peter Kitanidis
  • 依托单位:
CMG Collaborative Research: Subsurface Imaging and Uncertainty Quantification.
  • 批准号:
    0934596
  • 项目类别:
    Standard Grant
  • 资助金额:
    $35.5万
  • 财政年份:
    2009
  • 负责人:
    Peter Kitanidis
  • 依托单位:
Nonequilibrium Transport and Transport-Controlled Reactions
  • 批准号:
    0738772
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $38.0万
  • 财政年份:
    2008
  • 负责人:
    Peter Kitanidis
  • 依托单位:
Three-Dimensional Hydrodynamic Modeling of Flow and Sediment Transport in Complex River Channels
  • 批准号:
    0087842
  • 项目类别:
    Standard Grant
  • 资助金额:
    $30.0万
  • 财政年份:
    2001
  • 负责人:
    Peter Kitanidis
  • 依托单位:
海外基金