Residual-Based Grid Adaptation for Meshless LSFD-U Solver

Yousuf, Mohamed and Balakrishnan, N (2019) Residual-Based Grid Adaptation for Meshless LSFD-U Solver. In: AIAA JOURNAL, 57 (4). pp. 1649-1658.

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Abstract

The Paper projects the meshless LSFD-U methodology as a Cartesian grid method. A point distribution obtained from a Cartesian grid is employed in a solution update, leading to an automated computational fluid dynamics process for point adaptation. An estimate of the local truncation error obtained as a higher-order residual is employed for effecting a solution-based point adaptation. Asalient aspect of this methodology is the definition of a local length scale derived from an estimate of the truncation error, which not only provides a criterion for local refinement or coarsening but also can help in evolving an automatic termination criterion for the adaptive cycle. Toward point adaptation for flows with discontinuities, a hybrid adaptive strategy employing both the error estimator and indicator is employed. Results presented demonstrate the efficacy of the proposed methodology.

Item Type:	Journal Article
Publication:	AIAA JOURNAL
Publisher:	AMER INST AERONAUTICS ASTRONAUTICS
Additional Information:	Copyright of this article belongs to ARC
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	25 Jun 2019 19:03
Last Modified:	25 Jun 2019 19:03
URI:	http://eprints.iisc.ac.in/id/eprint/62802

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