Sökning: "boundary integrals"

Hittade 2 uppsatser innehållade orden boundary integrals.

  1. 1. Numerical simulation of an inertial spheroidal particle in Stokes flow

    Master-uppsats, KTH/Numerisk analys, NA

    Författare :Joar Bagge; [2015]
    Nyckelord :Fluid mechanics; Stokes flow; rigid body dynamics; spheroidal particles; inertia; integral equations; boundary integrals; double layer potentials; quadrature by expansion; Jeffery orbits; linear shear flow; quadratic flow; paraboloidal flow; Strömningsmekanik; Stokesflöde; stelkroppsdynamik; sfäroidiska partiklar; tröghet; integralekvationer; randintegraler; dubbellagerpotentialer; quadrature by expansion; Jeffery-banor; linjärt skjuvflöde; kvadratiskt flöde; paraboloidiskt flöde;

    Sammanfattning : Particle suspensions occur in many situations in nature and industry. In this master’s thesis, the motion of a single rigid spheroidal particle immersed in Stokes flow is studied numerically using a boundary integral method and a new specialized quadrature method known as quadrature by expansion (QBX). LÄS MER

  3. 2. Efficient Quadrature Settings for Elliptic PDE’s using a Coupled FEM and BEM Solver in COMSOL Multiphysics

    Master-uppsats, KTH/Numerisk analys, NA

    Författare :Gustav Friberg; [2014]
    Nyckelord :;

    Sammanfattning : By using singular integral kernels based on the fundamental solution, a partial differential equation (PDE) can be rewritten as a boundary integral defined at the boundary of a domain. This requires a linear differential operator with coefficients that are isotropic and homogeneous in space. LÄS MER