VorKir
  • Member for 5 years, 3 months
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3 answers
54 votes
35k views
44 bookmarks
What are the conceptual differences between the finite element and finite volume method?
5 answers
51 votes
10k views
49 bookmarks
What are criteria to choose between finite-differences and finite-elements
2 answers
39 votes
7k views
31 bookmarks
What does "symplectic" mean in reference to numerical integrators, and does SciPy's odeint use them?
3 answers
26 votes
5k views
16 bookmarks
What is the purpose of using integration by parts in deriving a weak form for FEM discretization?
3 answers
41 votes
5k views
22 bookmarks
What's the state of the art in parallel ODE methods?
2 answers
19 votes
5k views
11 bookmarks
Discontinuous Galerkin: Nodal vs Modal advantages and disadvantages
3 answers
11 votes
4k views
5 bookmarks
Applying Dirichlet boundary conditions to the Poisson equation with finite volume method
2 answers
0 votes
3k views
1 bookmarks
FEM Stiffness Matrix is always close to Singular or Badly Scaled
3 answers
13 votes
2k views
4 bookmarks
Mathematically, why does mass matrix / load vector lumping work?
2 answers
4 votes
1k views
3 bookmarks
Lax-Richtmyer stability analysis
2 answers
1 votes
1k views
1 bookmarks
Polynomial Interpolation with Matlab polyfit
3 answers
5 votes
1k views
6 bookmarks
Computing accurate fluxes with FEM
1 answers
9 votes
929 views
2 bookmarks
Optimal use of Strang splitting (for reaction diffusion equation)
2 answers
7 votes
879 views
2 bookmarks
Why does sparse linear algebra have a low arithmetic intensity?
3 answers
6 votes
774 views
4 bookmarks
Why is the FVM traditionally used in CFD, and FEM in computational structures?
0 answers
8 votes
676 views
2 bookmarks
Numerical implementation of the Dirichlet-to-Neumann map
1 answers
6 votes
649 views
1 bookmarks
How to project a vector into the H(div) space (in the context of finite elements)?
2 answers
3 votes
633 views
4 bookmarks
In what regime do the continuous and discontinuous Galerkin method become unstable for advection-diffusion systems?
2 answers
9 votes
624 views
2 bookmarks
Time discretization of the variational formulation of the Navier-Stokes equation
5 answers
17 votes
599 views
3 bookmarks
Are there operator splitting approaches for multiphysics PDEs that achieve high order convergence?
2 answers
5 votes
515 views
4 bookmarks
Solving Poisson equation with current BC using FEM
1 answers
8 votes
511 views
6 bookmarks
CFL condition in polar coordinates
1 answers
5 votes
423 views
4 bookmarks
Advantages and disadvantages of space-time finite element methods
2 answers
3 votes
395 views
3 bookmarks
Why iterative method: AMG preconditioned PCG is slower than Matlab direct method 'A\b'?
0 answers
14 votes
378 views
2 bookmarks
Operator Splitting methods for DAEs
1 answers
9 votes
355 views
7 bookmarks
Easily understandable argument that normal Runge–Kutta methods cannot be generalised to SDEs?
1 answers
1 votes
339 views
1 bookmarks
energy norm for transport equation
2 answers
5 votes
282 views
1 bookmarks
Preconditioner for the GMRES method in the Uzawa algorithm
1 answers
7 votes
280 views
2 bookmarks
Robust smoothers for geometric multigrid
1 answers
8 votes
272 views
4 bookmarks
Size of jump for piecewise discontinuous approximations