A 3D Collision Scheme For Compressible
Media In A General Connectivity Lagrangian
Formulation
Author(s)
N. Bar-Gill, J. Nemirovsky, N. Har’El & O. Agmon
Abstract
In multi-material hydrodynamic problems described using the Lagrangian
formulation, the interaction between different material meshes is carried
out using collision schemes. The basic schemes simulate interactions using
momentum transfer equations, which are solved for every pair of colliding
meshes. In this paper we present a novel collision scheme, which extends
the basic ones. After completing the momentum transfer stage, our scheme
prevents penetration between meshes gradually, while detecting future collisions,
ensuring that the penetration depth is kept under a specified limit.
Collisions of more than two meshes at the same point are treated specifi-
cally, by solving vectorized momentum transfer equations. This approach,
which suppresses sliding for these points, prevents numerical penetrations
of mesh vertices into the i
Keywords
Related Book
Other papers in this volume
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