Document Type

Article

Publication Date

2021

DOI

10.2514/1.J060270

Publication Title

AIAA Journal

Volume

59

Issue

11

Pages

4764-4776

Abstract

Computational fluid dynamics (CFD) has become critical to the design and analysis of aerospace vehicles. Parallel grid adaptation that resolves multiple scales with anisotropy is identified as one of the challenges in the CFD Vision 2030 Study to increase the capacity and capability of CFD simulation. The study also cautions that computer architectures are undergoing a radical change, and dramatic increases in algorithm concurrency will be required to exploit full performance. This paper reviews four different methods to parallel anisotropic grid adaptation. They cover both ends of the spectrum: 1) using existing state-of-the-art software optimized for a single core and modifying it for parallel platforms, and 2) designing and implementing scalable software with incomplete but rapidly maturing functionality. A brief overview for each grid adaptation system is presented in the context of a telescopic approach for multilevel concurrency. These methods employ different approaches to enable parallel execution, which provides a unique opportunity to illustrate the relative behavior of each approach. Qualitative and quantitative metric evaluations are used to draw lessons for future developments in this critical area for parallel CFD simulation.

Comments

"Authors of journal articles, magazine articles, and meeting papers published by AIAA may post their articles and papers on their private websites and deposit them in their institutional repositories, so long as access to the website is free of charge. In no circumstance shall any charge be made for access to the posted article or paper. Posting to an institutional repository is limited to those to which the author has a direct relationship (e.g., academic department repository, university repository, corporate intranet, agency repository, laboratory website, funding sources, or similar) including those that have deposit mandates."

Original Publication Citation

Tsolakis, C., Chrisochoides, N., Park, M. A., Loseille, A., & Michal, T. (2021). Parallel anisotropic unstructured grid adaptation. AIAA Journal, 59(11), 4764-4776. https://doi.org/10.2514/1.J060270

ORCID

0000-0002-0656-9631 (Tsolakis)

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