TY - GEN UR - http://lib.ugent.be/catalog/pug01:1106505 ID - pug01:1106505 LA - eng TI - A multi-solver quasi-Newton method for the partitioned simulation of fluid-structure interaction PY - 2010 SN - 1757-899X PB - Bristol AU - Degroote, Joris TW03 002001313696 802000037018 0000-0003-4225-1791 AU - Annerel, Sebastiaan 002003062427 802000424210 AU - Vierendeels, Jan TW03 801000864266 0000-0003-4295-7604 AU - Khalili, Nasser editor AU - Valliappan, Somasundaram editor AU - Li, Qing editor AU - Russel, Adrian editor AB - In partitioned fluid-structure interaction simulations, the flow equations and the structural equations are solved separately. Consequently, the stresses and displacements on both sides of the fluid-structure interface are not automatically in equilibrium. Coupling techniques like Aitken relaxation and the Interface Block Quasi-Newton method with approximate Jacobians from Least-Squares models (IBQN-LS) enforce this equilibrium, even with black-box solvers. However, all existing coupling techniques use only one flow solver and one structural solver. To benefit from the large number of multi-core processors in modern clusters, a new Multi-Solver Interface Block Quasi-Newton (MS-IBQN-LS) algorithm has been developed. This algorithm uses more than one flow solver and structural solver, each running in parallel on a number of cores. One-dimensional and three-dimensional numerical experiments demonstrate that the run time of a simulation decreases as the number of solvers increases, albeit at a slower pace. Hence, the presented multi-solver algorithm accelerates fluid-structure interaction calculations by increasing the number of solvers, especially when the run time does not decrease further if more cores are used per solver. ER -Download RIS file
00000nam^a2200301^i^4500 | |||
001 | 1106505 | ||
005 | 20170102095208.0 | ||
008 | 110120s2010------------------------eng-- | ||
022 | a 1757-899X | ||
024 | a 000290445000021 2 wos | ||
024 | a 1854/LU-1106505 2 handle | ||
024 | a 10.1088/1757-899X/10/1/012020 2 doi | ||
040 | a UGent | ||
245 | a A multi-solver quasi-Newton method for the partitioned simulation of fluid-structure interaction | ||
260 | a Bristol, UK b IOP c 2010 | ||
520 | a In partitioned fluid-structure interaction simulations, the flow equations and the structural equations are solved separately. Consequently, the stresses and displacements on both sides of the fluid-structure interface are not automatically in equilibrium. Coupling techniques like Aitken relaxation and the Interface Block Quasi-Newton method with approximate Jacobians from Least-Squares models (IBQN-LS) enforce this equilibrium, even with black-box solvers. However, all existing coupling techniques use only one flow solver and one structural solver. To benefit from the large number of multi-core processors in modern clusters, a new Multi-Solver Interface Block Quasi-Newton (MS-IBQN-LS) algorithm has been developed. This algorithm uses more than one flow solver and structural solver, each running in parallel on a number of cores. One-dimensional and three-dimensional numerical experiments demonstrate that the run time of a simulation decreases as the number of solvers increases, albeit at a slower pace. Hence, the presented multi-solver algorithm accelerates fluid-structure interaction calculations by increasing the number of solvers, especially when the run time does not decrease further if more cores are used per solver. | ||
598 | a P1 | ||
100 | a Degroote, Joris u TW03 0 002001313696 0 802000037018 0 0000-0003-4225-1791 | ||
700 | a Annerel, Sebastiaan 0 002003062427 0 802000424210 0 978725625704 | ||
700 | a Vierendeels, Jan u TW03 0 801000864266 0 0000-0003-4295-7604 | ||
700 | a Khalili, Nasser e editor | ||
700 | a Valliappan, Somasundaram e editor | ||
700 | a Li, Qing e editor | ||
700 | a Russel, Adrian e editor | ||
650 | a Technology and Engineering | ||
653 | a approximate Jacobians | ||
653 | a least-squares models | ||
653 | a Aitken relaxation | ||
653 | a structural equations | ||
653 | a flow equations | ||
653 | a partitioned fluid-structure interaction simulations | ||
653 | a flow simulation | ||
653 | a Newton method | ||
653 | a equilibrium | ||
653 | a coupling techniques | ||
653 | a multi-solver interface block quasiNewton algorithm | ||
773 | t 9th World congress on Computational Mechanics ; 4th Asian Pacific congress on Computational Mechanics (WCCM/APCOM 2010) g IOP Conf. Ser., Mater. Sci. Eng. 2010. IOP. 10 (1) q 10:1< | ||
856 | 3 Full Text u https://biblio.ugent.be/publication/1106505/file/1106507 z [open] y LastAuthor.pdf | ||
856 | 3 Full Text u https://biblio.ugent.be/publication/1106505/file/1106508 z [ugent] y Publisher.pdf | ||
920 | a confcontrib | ||
852 | x EA b TW03 | ||
922 | a UGENT-EA |
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