Novel Adaptive Methods for Hyperbolic Conservation Laws Based on New Quasi-Linear Seventh- and Ninth-Order Schemes

Shaoshuai Chu; Pingyao Feng; Vadim A. Kolotilov; Alexander Kurganov; Vladimir V. Ostapenko

Novel Adaptive Methods for Hyperbolic Conservation Laws Based on New Quasi-Linear Seventh- and Ninth-Order Schemes

Numerical Analysis 2026-07-18 v1

Authors: Shaoshuai Chu , Pingyao Feng , Vadim A. Kolotilov , Alexander Kurganov , Vladimir V. Ostapenko

Abstract

We develop new adaptive numerical schemes for one- and two-dimensional hyperbolic systems of conservation laws. The methodology relies on the use of a smoothness indicator to automatically partition the computational domain into smooth and nonsmooth (``rough``) regions. We then follow the scheme adaption strategy recently introduced in [S. Chu, P. Feng, V. A. Kolotilov, A. Kurganov, and V. V. Ostapenko, Commun. Comput. Phys., accepted], but instead of the quasi-linear (QL) fifth-order finite-difference scheme used there, we employ the new QL seventh- and ninth-order schemes in the smooth regions. A series of numerical experiments for the Euler equations of gas dynamics demonstrates that the new adaptive schemes contain a smaller amount of numerical dissipation and achieve higher resolution compared with their counterpart that uses the QL fifth-order scheme in the smooth areas.

Keywords

hyperbolic conservation laws adaptive schemes quasi-linear schemes high-order methods Euler equations smoothness indicator

Cite

@article{arxiv.2607.16918,
  title  = {Novel Adaptive Methods for Hyperbolic Conservation Laws Based on New Quasi-Linear Seventh- and Ninth-Order Schemes},
  author = {Shaoshuai Chu and Pingyao Feng and Vadim A. Kolotilov and Alexander Kurganov and Vladimir V. Ostapenko},
  journal= {arXiv preprint arXiv:2607.16918},
  year   = {2026}
}