Abstract
A fifth-order hybrid shock-capturing finite difference scheme (tc-Hybrid) is employed for solving one-dimensional hyperbolic conservation laws on manifolds (SPDEs). Our previously proposed time-continuous embedding approach is employed to transform SPDEs into embedded SPDEs (EPDEs) in an embedding Euclidean space [JSC 93, 84 (2022)]. The spatial gradients are discretized using the fifth-order characteristic-wise weighted essentially non-oscillatory (WENO-Z) and component-wise upwind central finite difference operators, and the ghost cell values are reconstructed using a sixth-order ENO and Lagrange interpolations in the Cartesian computational tube. The tc-Hybrid scheme identifies smooth and non-smooth regions using the robust and accurate trouble-cell detector (RBF shock-detector and Tukey’s boxplot method). This hybridization allows efficient and accurate resolution of fine-scale structures in smooth regions while capturing singular structures (shock, contact discontinuity, and rarefaction waves) in discontinuous regions in an essentially non-oscillatory manner (ENO property). The tc-Hybrid scheme has been tested on a scalar SPDE (Burgers’ equation and Buckley-Leverett problem) and a system of SPDEs (Euler equations with the Sod, Lax, and shock-density wave interaction problems) on one-dimensional manifolds with curved geometries. The results show that the tc-Hybrid scheme achieves fifth-order accuracy for smooth problems, captures singular structures in an ENO manner, and significantly reduces CPU times.
| Original language | English |
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| Title of host publication | Spectral and High-Order Methods for Partial Differential Equations ICOSAHOM 2023 |
| Subtitle of host publication | Selected Papers from the ICOSAHOM Conference, Seoul, Korea, August 14 – 18, 2023 |
| Editors | Sehun Chun, Jae-Hun Jung, Eun-Jae Park, Jie Shen |
| Place of Publication | Switzerland |
| Publisher | Springer Cham |
| Pages | 239-255 |
| Number of pages | 17 |
| ISBN (Electronic) | 9783031769887 |
| ISBN (Print) | 9783031769870 |
| DOIs | |
| Publication status | Published - 1 Nov 2025 |
| Event | 14th International Conference on Spectral and High-Order Methods - Yonsei University, Seoul, Korea, Republic of Duration: 14 Aug 2023 → 18 Aug 2023 https://link.springer.com/book/10.1007/978-3-031-76988-7 (Conference proceeding) https://icosahom2023.org/ (Conference website) https://icosahom2023.org/?page_id=90 (Conference program) |
Publication series
| Name | Lecture Notes in Computational Science and Engineering |
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| Volume | 142 |
| ISSN (Print) | 1439-7358 |
| ISSN (Electronic) | 2197-7100 |
| Name | ICOSAHOM: International Conference on Spectral and High Order Methods |
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Conference
| Conference | 14th International Conference on Spectral and High-Order Methods |
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| Abbreviated title | ICOSAHOM 2023 |
| Country/Territory | Korea, Republic of |
| City | Seoul |
| Period | 14/08/23 → 18/08/23 |
| Internet address |
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User-Defined Keywords
- Closest point method
- Euler equations
- Hybrid scheme
- Hyperbolic conservation laws
- Manifolds
- Time-continuous embedding
- WENO