4.7 Article Proceedings Paper

Two efficient staggered algorithms for the serial and parallel solution of three-dimensional nonlinear transient aeroelastic problems

Journal

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
Volume 182, Issue 3-4, Pages 499-515

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/S0045-7825(99)00206-6

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Partitioned procedures and staggered algorithms are often adopted for the solution of coupled fluid/structure interaction problems in the time domain. In this paper, we overview two sequential and parallel partitioned procedures that are popular in computational nonlinear aeroelasticity, and address their limitation in terms of accuracy and numerical stability. We propose two alternative serial and parallel staggered algorithms for the solution of coupled transient aeroelastic problems, and demonstrate their superior accuracy and computational efficiency with the flutter analysis of the AGARD Wing 445.6. We contrast our results with those computed by other investigators and validate them with experimental data. (C) 2000 Elsevier Science S.A. All rights reserved.

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