Sökning: "Darcy´s law"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden Darcy´s law.

  1. 1. Solving Partial Differential Equations With Neural Networks

    Master-uppsats, Uppsala universitet/Matematiska institutionen

    Författare :Håkan Karlsson Faronius; [2023]
    Nyckelord :Partial differential equations; neural networks; physics-informed neural networks; deep ritz method; fourier neural operator; importance sampling; inverse problems;

    Sammanfattning : In this thesis three different approaches for solving partial differential equa-tions with neural networks will be explored; namely Physics-Informed NeuralNetworks, Fourier Neural Operators and the Deep Ritz method. Physics-Informed Neural Networks and the Deep Ritz Method are unsupervised machine learning methods, while the Fourier Neural Operator is a supervised method. LÄS MER

  3. 2. Groundwater Inflow into Fractured Rock Tunnels

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Mariam Beydoun; [2022]
    Nyckelord :groundwater inflow; rock tunnel; discrete fracture networks; discrete fracture-matrix; equivalent porous medium; Darcy’s Law; Reynold’s equation; cubic law; grundvatteninflöde; bergtunnel; discrete fracture networks; discrete fracture-matrix; equivalent porous medium; Darcy’s Law; Reynolds equation; cubic law;

    Sammanfattning : Groundwater inflow is a challenge in construction of tunnels in fractured bedrocks since it affects the safety function of tunnels and leads to potential problems in the surrounding environment, such as subsidence, dropdown of the groundwater table. Quantification of groundwater inflow into the tunnel is also important for design of grouting in the construction of the tunnel. LÄS MER

  4. 3. Assessment of Groundwater Flow to Lake Bolmen

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Väg- och vattenbyggnad (CI); Lunds universitet/Teknisk geologi

    Författare :Massimiliano Favaro; [2021]
    Nyckelord :Groundwater; modelling; MODFLOW; GMS; hydrogeology; Technology and Engineering;

    Sammanfattning : This work reports the research and findings concerning the processes of groundwater flow and distribution to lake Bolmen in the Småland region, Sweden. The watershed of Bolmen is of high interest since it provides water for drinking and energy purposes, representing a resource of notable importance for the society of southern Sweden. LÄS MER

  5. 4. LES Modelling of Turbulent Flow Through an Array of Cylinders Using OpenFOAM

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Hanna Isaksson; [2019]
    Nyckelord :Porous media; OpenFOAM; premeability; LES; packed cylinders; turbulence;

    Sammanfattning : The objective for this master thesis project was to perform simulations for high and low Reynolds number for a porousmedia modelled as quadratic packed cylinders. The simulations were to be performed by using the open source codeOpenFOAM and the turbulence should be modelled by the LES turbulence model in order to resolve details about theturbulence. LÄS MER

  7. 5. Geothermal Potential of Sub-Volcanic Intrusions in a Typical Caldera Setting

    Master-uppsats, Uppsala universitet/Mineralogi, petrologi och tektonik

    Författare :Einar Bessi Gestsson; [2018]
    Nyckelord :sub-volcanic intrusions; thermometry; numerical modeling; geothermal energy; magmaintrusioner; termometri; numerisk modell; geotermisk energi;

    Sammanfattning : Sub-volcanic intrusions can form an extensive network of sills, dikes and other intrusion types that make up a plumbing system beneath volcanoes. Such intrusions are the heat source for high-temperature geothermal systems in volcanic areas and therefore, it is of great importance to study them in relation to geothermal exploration and production. LÄS MER