# An analysis of the influence of data extrema on some first and second order central approximations of hyperbolic conservation laws

- Volume: 39, Issue: 5, page 965-993
- ISSN: 0764-583X

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topBreuss, Michael. "An analysis of the influence of data extrema on some first and second order central approximations of hyperbolic conservation laws." ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique 39.5 (2005): 965-993. <http://eudml.org/doc/245448>.

@article{Breuss2005,

abstract = {We discuss the occurrence of oscillations when using central schemes of the Lax-Friedrichs type (LFt), Rusanov’s method and the staggered and non-staggered second order Nessyahu-Tadmor (NT) schemes. Although these schemes are monotone or TVD, respectively, oscillations may be introduced at local data extrema. The dependence of oscillatory properties on the numerical viscosity coefficient is investigated rigorously for the LFt schemes, illuminating also the properties of Rusanov’s method. It turns out, that schemes with a large viscosity coefficient are prone to oscillations at data extrema. For all LFt schemes except for the classical Lax-Friedrichs method, occurring oscillations are damped in the course of a computation. This damping effect also holds for Rusanov’s method. Concerning the NT schemes, the non-staggered version may yield oscillatory results, while it can be shown rigorously that the staggered NT scheme does not produce oscillations when using the classical minmod-limiter under a restriction on the time step size. Note that this restriction is not the same as the condition ensuring the TVD property. Numerical investigations of one-dimensional scalar problems and of the system of shallow water equations in two dimensions with respect to the phenomenon complete the paper.},

author = {Breuss, Michael},

journal = {ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique},

keywords = {conservation laws; numerical methods; finite difference methods; central schemes; Lax-Friedriches scheme; Rusanov's scheme; Nessyahu-Tadmor scheme; minmod-limiter; shallow water equation},

language = {eng},

number = {5},

pages = {965-993},

publisher = {EDP-Sciences},

title = {An analysis of the influence of data extrema on some first and second order central approximations of hyperbolic conservation laws},

url = {http://eudml.org/doc/245448},

volume = {39},

year = {2005},

}

TY - JOUR

AU - Breuss, Michael

TI - An analysis of the influence of data extrema on some first and second order central approximations of hyperbolic conservation laws

JO - ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique

PY - 2005

PB - EDP-Sciences

VL - 39

IS - 5

SP - 965

EP - 993

AB - We discuss the occurrence of oscillations when using central schemes of the Lax-Friedrichs type (LFt), Rusanov’s method and the staggered and non-staggered second order Nessyahu-Tadmor (NT) schemes. Although these schemes are monotone or TVD, respectively, oscillations may be introduced at local data extrema. The dependence of oscillatory properties on the numerical viscosity coefficient is investigated rigorously for the LFt schemes, illuminating also the properties of Rusanov’s method. It turns out, that schemes with a large viscosity coefficient are prone to oscillations at data extrema. For all LFt schemes except for the classical Lax-Friedrichs method, occurring oscillations are damped in the course of a computation. This damping effect also holds for Rusanov’s method. Concerning the NT schemes, the non-staggered version may yield oscillatory results, while it can be shown rigorously that the staggered NT scheme does not produce oscillations when using the classical minmod-limiter under a restriction on the time step size. Note that this restriction is not the same as the condition ensuring the TVD property. Numerical investigations of one-dimensional scalar problems and of the system of shallow water equations in two dimensions with respect to the phenomenon complete the paper.

LA - eng

KW - conservation laws; numerical methods; finite difference methods; central schemes; Lax-Friedriches scheme; Rusanov's scheme; Nessyahu-Tadmor scheme; minmod-limiter; shallow water equation

UR - http://eudml.org/doc/245448

ER -

## References

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