Essays about: "high-order finite difference methods"

Showing result 6 - 8 of 8 essays containing the words high-order finite difference methods.

  1. 6. A High Order Finite Difference Method for Simulating Earthquake Sequences in a Poroelastic Medium

    University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

    Author : Kim Torberntsson; Vidar Stiernström; [2016]
    Keywords : numerical analysis; numerical methods; numerical modeling; SBP-SAT; finite differences; high performance computing; geophysics; geomechanics; poroelasticity; fault mechanics; induced seismicity;

    Abstract : Induced seismicity (earthquakes caused by injection or extraction of fluids in Earth's subsurface) is a major, new hazard in the United States, the Netherlands, and other countries, with vast economic consequences if not properly managed. Addressing this problem requires development of predictive simulations of how fluid-saturated solids containing frictional faults respond to fluid injection/extraction. READ MORE

  3. 7. Numerical wave propagation in large-scale 3-D environments

    University essay from Avdelningen för beräkningsvetenskap

    Author : Martin Almquist; [2012]
    Keywords : high-order finite difference methods; wave propagation; numerical stability; parallel efficiency;

    Abstract : High-order accurate finite difference methods have been applied to the acoustic wave equation in discontinuous media and curvilinear geometries, using the SBP-SAT method. Strict stability is shown for the 2-D wave equation with general boundary conditions. READ MORE

  4. 8. Coupled High-Order Finite Difference and Unstructured Finite Volume Methods for Earthquake Rupture Dynamics in Complex Geometries

    University essay from Institutionen för informationsteknologi

    Author : Ossian O'Reilly; [2011]
    Keywords : SBP summation-by-parts SAT simultaneous-approximation-term unstructured finite volume methods high order finite difference methods interface coupling earthquake rupture dynamics complex geometries;

    Abstract : The linear elastodynamic two-dimensional anti-plane stress problem, where deformations occur in only one direction is considered for one sided non-planar faults. Fault dynamics are modeled using purely velocity dependent friction laws, and applied on boundaries with complex geometry. READ MORE