Viscous fluid-structure interaction is treated with an arbitrary Lagrangian- Eulerian formulation. The spatial discretization is performed by the spectral element method for the fluid part where the Navier-Stokes equations are integrated and in the solid part where transient linear elasticity is described by the Navier equations. Time marching algorithms are second-order accurate in time in both the fluid and the solid. The algorithm is applied to the flow in a plane channel partially obstructed by a solid component able to move under the action of the fluid flow.
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Bodard, N., Deville, M.O. Fluid-Structure Interaction by the Spectral Element Method. J Sci Comput 27, 123–136 (2006). https://doi.org/10.1007/s10915-005-9031-2
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DOI: https://doi.org/10.1007/s10915-005-9031-2