A new method for increasing the accuracy of the fifth-order WENO scheme

Document Type : Research Paper

Author

University of Tehran, College of Engineering, School of Engineering Science, Tehran, Iran.

Abstract

In this article, we introduce a new method for increasing the accuracy of the fifth-order WENO scheme. Recently, some methods were developed to increase the accuracy near discontinuities.
We use the idea of these methods and the mapped WENO schemes to increase the accuracy both in smooth regions and near discontinuities. We also present some numerical experiments including the linear wave equation and Euler equations of gas dynamics to confirm the theoretical results. The results show that the introduced scheme attains better resolution at the smooth parts of the solution, while keeping the same non-oscillatory behavior of the WENO schemes at shocks and discontinuities.

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Articles in Press, Accepted Manuscript
Available Online from 11 October 2025
  • Receive Date: 18 December 2024
  • Revise Date: 12 September 2025
  • Accept Date: 07 October 2025