Staggered Finite Difference Schemes for Conservation Laws

In this work, we introduce new finite-difference shock-capturing central schemes on staggered grids. Staggered schemes may have better resolution of the corresponding unstaggered schemes of the same order. They are based on high order non oscillatory reconstruction (ENO or WENO), and a suitable ODE solver for the computation of the integral of the flux. Although they suffer from a more severe stability restriction, they do not require a numerical flux function. A comparison of the new schemes with high order finite volume (on staggered and unstaggered grids) and high order unstaggered finite difference methods is reported.

• Type: Journal
• Year: 2006
• Where: JSCIC
• Authors: Gabriella Puppo, Giovanni Russo
• Keywords: Corresponding Unstaggered Schemes, JSCIC 2006, Shock-capturing Central Schemes, Staggered