Sökning: "subsurface flow"

Visar resultat 11 - 15 av 38 avhandlingar innehållade orden subsurface flow.

  1. 11. Stochastic analysis of fluid flow and tracer pathways in crystalline fracture networks

    Författare :Andrew Frampton; Vladimir Cvetkovic; Allen Shapiro; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Groundwater; Fractured media; Transport; Retention; Macrodispersion; Lagrangian formulation; Stochastic modelling; Earth sciences; Geovetenskap; Hydrology; Hydrologi; Environmental engineering; Miljöteknik;

    Sammanfattning : Understanding groundwater flow systems and how these control transport is an essential part in assessing the suitability of subsurface environments as hosts for storage of toxic waste. Therefore it is important to be able to integrate knowledge obtained from field characterisation of the subsurface with methods which can be used to evaluate and predict possible impact on surrounding environments. LÄS MER

  3. 12. A multi-resolution approach for modeling flow and solute transport in heterogeneous porous media

    Författare :Hrvoje Gotovac; Vladimir Cvetkovic; Alberto Bellin; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Multi-resolution adaptive approach; Atomic and Fup basis functions; Monte- Carlo method; Heterogeneous porous media; Flow; Transport; Travel time; Water engineering; Vattenteknik;

    Sammanfattning : Subsurface processes are usually characterized by rare field experiments, sparse measurements,multi-resolution interpretations, stochastic description, related uncertainties and computational complexity. Over the last few decades, different computational techniques and strategies have become indispensable tools for flow and solute transport prediction in heterogeneous porousmedia. LÄS MER

  4. 13. Experimental and Modelling Studies on the Spreading of Non-Aqueous Phase Liquids in Heterogeneous Media

    Författare :Fritjof Fagerlund; Auli Niemi; Tissa Illangasekare; Karsten Jensen; Uppsala universitet; []
    Nyckelord :Hydrology; NAPL; Multi-phase flow; Modelling; Experiment design; Heterogeneity; Constitutive relations; Multi-constituent contaminants; Capillary pressure; Relative permeability; Hysteresis; Hydrologi;

    Sammanfattning : Non-Aqueous Phase Liquids (NAPLs) include commonly occurring organic contaminants such as gasoline, diesel fuel and chlorinated solvents. When released to subsurface environments their spreading is a complex process of multi-component, multi-phase flow. LÄS MER

  5. 14. Underneath Norrköping : An Urban Mine of Hibernating Infrastructure

    Författare :Björn Wallsten; Joakim Krook; Vanesa Castán Broto; Linköpings universitet; []
    Nyckelord :Urban mining; infrastructure; hibernating stocks; Material Flow Analysis; infrastructure studies; Norrköping;

    Sammanfattning : This study examines the subsurface infrastructure in the Swedish city of Norrköping from an urban mining perspective. Urban mining is a broadly defined term for different strategies that regard the built environment as a resource base for materials. LÄS MER

  7. 15. Hydrology and water chemistry in a heterogeneous landscape : process-based modelling of coupled surface water and groundwater flow across contrasting boreal catchments

    Författare :Elin Jutebring Sterte; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Surface water and groundwater are connected, and the exchange between them is a vital part of a catchment’s hydrology. Along the flow paths through the catchment, biogeochemical processes can change the water’s chemical composition. LÄS MER