Sökning: "FVM"

Visar resultat 1 - 5 av 15 uppsatser innehållade ordet FVM.

  1. 1. Construction and Evaluation of a Numerical Model for Heat Transfer in a Ladle During Pre-heating : A Finite Volume Approach to the Diffusion Equation using Julia

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Gustaf Bjurstam; [2023]
    Nyckelord :Finite Volume Method; FVM; Diffusion equation; Ladle; Pre-heating; Baking; Heat equation; Heat transfer; Finita Volymmetoden; FVM; Diffusionsekvationen; Skänk; Förvärmning; Värmeledningsekvationen; Värmeledning;

    Sammanfattning : Heat transfer is key to understanding many processes in engineering. At a steel mill heat transfer is absolutely crucial to understanding most of the processes. One such a process is the pre-heating of a freshly relined ladle. LÄS MER

  3. 2. Physics-Informed Machine Learning in Power Transformer Dynamic Thermal Modelling

    Master-uppsats, KTH/Matematisk statistik

    Författare :Federica Bragone; [2021]
    Nyckelord :ANN; PINN; PDE; FVM; Transformer; Thermal modelling; ANN; PINN; PDE; FVM; Transformatorer; Termisk modellering;

    Sammanfattning : Artificial neural networks (ANNs) are commonly considered as "black boxes": they can approximate any function without giving any interpretation. Novel research has observed that the laws of physics, which govern everything around us, can supplement the implementation of a neural network. LÄS MER

  4. 3. Auditing Complex Fair Value Measurements : The Battle of Interpretations

    Kandidat-uppsats, Stockholms universitet/Företagsekonomiska institutionen

    Författare :Emil Otterskog; Ted Wanning; [2020]
    Nyckelord :Fair Value; Fair Value Measurements; Auditing; Auditing Standards; Audit Inspections; Judgment; Decision-Making; Structure; FVM Gap;

    Sammanfattning : Fair Value Accounting is becoming increasingly more prominent, and auditing such measurements is at times difficult as a great deal of estimates and judgments are involved. This makes auditors jobs more challenging. Research has found that there is a need for understanding how auditing standards affect the audit process. LÄS MER

  5. 4. Forest Simulation with Industrial CFD Codes

    Master-uppsats, KTH/Strömningsfysik

    Författare :Petter Cedell; [2019]
    Nyckelord :RANS; LES; WindSim; CFD; Forest Model; Turbulence; FVM;

    Sammanfattning : Much of the planned installation of wind turbines in Sweden will be located in the northern region, characterized by a lower population density so that problems related to sound pollution and visual acceptance are of lower concern. This area is generally distinguished by complex topography and the presence of forest, that significantly affects the wind characteristics, complicating their modelling and simulation. LÄS MER

  7. 5. Model of Thermal EHL Based on Navier-Stokes Equations : Effects of Asperities and Extreme Loads

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Marko Tošić; [2019]
    Nyckelord :;

    Sammanfattning : A common approach in numerical studies of elastohydrodynamic lubrication (EHL) is based on solving the Reynolds equation that governs pressure distribution in thin lubricant films. The Reynolds equation is derived from the Navier-Stokes equations by taking assumptions that are considered valid when the thickness of the lubricant film is much smaller than its length. LÄS MER