A CELL-CENTERED LAGRANGIAN-MESH DIFFUSION DIFFERENCING SCHEME Academic Article

abstract

• A new cell-centered diffusion differencing scheme for the quadrilateral meshes associated with Lagrangian hydrodynamics codes is described. Computational comparisons of this scheme and existing schemes are given. It is shown that the new scheme is much more accurate than existing schemes when the mesh is significantly skewed. The new scheme is also more costly because there are special cell-edge unknowns in addition to the standard cell-center unknowns, and the associated diffusion matrix is asymmetric. The disadvantages of an asymmetric diffusion matrix are mitigated by a multigrid solution technique that is quite effective. 1992.

authors

• Morel, Jim

published proceedings

• JOURNAL OF COMPUTATIONAL PHYSICS

author list (cited authors)

• MOREL, J. E., DENDY, J. E., HALL, M. L., & WHITE, S. W.

citation count

• 44

complete list of authors

• MOREL, JE||DENDY, JE||HALL, ML||WHITE, SW

publication date

• December 1992

publisher

• Elsevier  Publisher

published in

• Journal of Computational Physics  Journal

keywords

• 40 Engineering
• 4006 Communications Engineering

Digital Object Identifier (DOI)

• 10.1016/0021-9991(92)90402-K

start page

• 286

end page

• 299

volume

• 103

issue

• 2

URL

• http://dx.doi.org/10.1016/0021-9991(92)90402-k