Linearized Formulation for Fluid-Structure-Interaction for Rigid-Body Motion
2022 (English)In: IUTAM Laminar-Turbulent Transition / [ed] Sherwin, S Schmid, P Wu, X, Springer Nature , 2022, Vol. 38, p. 459-468Conference paper, Published paper (Refereed)
Abstract [en]
A linearized formulation for fluid-structure-interaction problems exhibiting rigid-body-motion is presented. The linearized equations are evaluated on a stationary grid and require no mesh motion. Numerical tests are performed to validate the derived formulation by comparing the time evolution between the linear and non-linear equations. In all cases both the growth rate and angular frequency of the instability matches to within 0.1% accuracy. The derived formulation is used to predict the phenomenon of symmetry breaking for a rotating cylinder with an attached splitter-plate, the onset of aeroelastic pitch-oscillations for a NACA0012 airfoil at transitional Reynolds numbers, and investigate the structural sensitivity of the least stable eigenvalue for an oscillating cylinder.
Place, publisher, year, edition, pages
Springer Nature , 2022. Vol. 38, p. 459-468
Series
IUTAM Bookseries, ISSN 1875-3507
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-304773DOI: 10.1007/978-3-030-67902-6_39ISI: 000709087600039Scopus ID: 2-s2.0-85112668825OAI: oai:DiVA.org:kth-304773DiVA, id: diva2:1612865
Conference
9th IUTAM Symposium on Laminar-Turbulent Transition, SEP 02-06, 2019, Imperial Coll London, London, England
Note
QC 20211119
Part of proceedings: ISBN 978-3-030-67902-6; 978-3-030-67901-9
2021-11-192021-11-192024-03-18Bibliographically approved