An Adaptive Reconstruction Method for Arbitrary High-Order Accuracy Using Discontinuity Feedback
<|reference_start|>An Adaptive Reconstruction Method for Arbitrary High-Order Accuracy Using Discontinuity Feedback: This paper introduces an effcient class of adaptive stencil extension reconstruction methods based on a discontinuity feedback factor, addressing the challenges of weak robustness and high computational cost in high-order schemes, particularly those of 7th-order or above. Two key innovations are presented: The accuracy order adaptively increases from the lowest level based on local stencil smoothness, contrasting with conventional methods like Weighted Essentially Non-Oscillatory (WENO) and Monotonic Upstream-Centered Scheme for Conservation Laws (MUSCL)limiters, which typically reduce order from the highest level. The Discontinuity Feedback Factor (DF) serves a dual purpose: detecting sub-cell discontinuity strength and explicitly incorporating into the reconstruction process as a local smoothness measure. This approach eliminates the need for computationally expensive smoothness indicators often required in very high-order schemes, such as 9th-order schemes, and can be easily generalized to arbitrary high-order schemes. Rigorous test cases, including a Mach 20000 jet, demonstrate the exceptional robustness of this approach.<|reference_end|>
@article{zhang2024an,
    title={An Adaptive Reconstruction Method for Arbitrary High-Order Accuracy
  Using Discontinuity Feedback},
    author={Hong Zhang, Yue Zhao, Xing Ji, Kun Xu},
    journal={arXiv preprint arXiv:2410.05489},
    year={2024},
    archivePrefix={arXiv},
    eprint={2410.05489},
    primaryClass={math.NA cs.NA}
}