Essays about: "incompressible Navier-Stokes equations"

Showing result 1 - 5 of 21 essays containing the words incompressible Navier-Stokes equations.

  1. 1. Solving the incompressible Navier-Stokes equations in 3-D to model gas flow in a room

    University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

    Author : Fredrik Malmström; [2024]
    Keywords : ;

    Abstract : The thesis proposes to model the flow of gases in a room by solving the incompressible Navier-Stokes equations in three dimensions. The transportationof scalars such as temperature and concentration of CO2 is modeled by solving the advection-diffusion equation, and the effects of temperature on thevelocity is accounted for by employing the Boussinesq approximation. READ MORE

  3. 2. Verification of the fluid dynamics modules of the multiphysics simulation framework MOOSE : A work to test a candidate software for molten salt reactor analysis

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Erik Gustafsson; [2022]
    Keywords : molten salt reactor MSR ; small modular reactor SMR ; computational fluid dynamics CFD ; multiphysics; MOOSE;

    Abstract : This is a report of a verification study of the multiphysics simulation framework MOOSE which was preformed at the company Seaborg Technologies. In the process of designing molten salt reactors there is a special need of making credible multiphysics simulations since the fuel is in motion. READ MORE

  4. 3. Lid driven cavity flow using stencil-based numerical methods

    University essay from Uppsala universitet/Institutionen för informationsteknologi

    Author : Hannes Juujärvi; Isak Kinnunen; [2022]
    Keywords : Finite differences; incompressible Navier-Stokes equations; lid driven cavity flow; benchmark problem; RBF-FD-LS; FDM; accuracy; computational cost; stream function-vorticity formulation;

    Abstract : In this report the regular finite differences method (FDM) and a least-squares radial basis function-generated finite differences method (RBF-FD-LS) is used to solve the two-dimensional incompressible Navier-Stokes equations for the lid driven cavity problem. The Navier-Stokes equations is solved using stream function-vorticity formulation. READ MORE

  5. 4. Numerical solutions to the incompressible Navier-Stokes equations : Finite difference solutions in curvilinear coordinates

    University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

    Author : David Niemelä; [2022]
    Keywords : ;

    Abstract : A finite difference scheme for the incompressible Navier-Stokes equations in 2-dimensionalcurvilinear coordinates is derived. The scheme uses high-order Summation-By-Parts operatorsand boundaries are handled by the Projection method. READ MORE

  6. 5. High-performance implementation of H(div)-conforming elements for incompressible flows

    University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

    Author : Niklas Wik; [2022]
    Keywords : Finite elements; H div -conforming; incompressible flows; incompressible Navier-Stokes equations; high-performance; matrix-free; Raviart-Thomas;

    Abstract : In this thesis, evaluation of H(div)-conforming finite elements is implemented in a high-performance setting and used to solve the incompressible Navier-Stokes equation, obtaining an exactly point-wise divergence-free velocity field. In particular, the anisotropic Raviart-Thomas tensor-product polynomial space is considered, where the finite element operators are evaluated with quadrature in a matrix-free fashion using sum-factorization on tensor-product meshes. READ MORE