Preprint 2005-013

On the Convergence of SPH Method for Scalar Conservation Laws with Boundary Conditions

Abstract: The paper is the third of a series where the convergence analysis of SPH method for multidimensional conservation laws is investigated. In this paper, two original numerical models for the treatment of boundary conditions are elaborated. To take into account nonlinear effects in agreement with Bardos, LeRoux and nedelec boundary conditions ([1], [13]), the state at the boundary is computed by solving appropriate Riemann problems. The first numerical model is developed around the idea of boundary forces recently initiated by monaghan in [32] in his simulation of gravity currents. The second one extends the well-known approach of ghost particles for plane boundaries to the general case of curved boundaries. The convergence analysis in L^p_loc (p<∞) is achieved thanks to the uniqueness result of measure-valued solutions recently established in [3] for L^∞ initial and boundary data.

Paper:

Available as PDF (368 Kbytes).

Author(s):

Bachir Ben Moussa, <benmou@tem.uoc.gr>

Publishing information:

to appear in Methods and Applications for Analysis

Comments:

Submitted by:

<benmou@tem.uoc.gr> March 21 2005.