Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4645024 | Applied Numerical Mathematics | 2015 | 12 Pages |
Abstract
We study the properties of an approximation of the Laplace operator with Neumann boundary conditions using volume penalization. For the one-dimensional Poisson equation we compute explicitly the exact solution of the penalized equation and quantify the penalization error. Numerical simulations using finite differences allow then to assess the discretization and penalization errors. The eigenvalue problem of the penalized Laplace operator with Neumann boundary conditions is also studied. As examples in two space dimensions, we consider a Poisson equation with Neumann boundary conditions in rectangular and circular domains.
Related Topics
Physical Sciences and Engineering
Mathematics
Computational Mathematics
Authors
Dmitry Kolomenskiy, Romain Nguyen van yen, Kai Schneider,