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Modeling of Flow-Induced Sound in Poroelastic Materials
The use of poroelastic materials on the surfaces under flows-part of the Collaborative Research SFB 880, "Fundamentals of high-lift for future commercial aircrafts"- is investigated. Besides the positive influence that porous surfaces have on aeroacoustics, a poroelastic layer may also help reduce the impact sound. An approach to model the interface between a flow and a poroelastic material, which tracks the propagation of flow-induced structure-borne sound into the poroelastic medium, is illustrated. Firstly, the overall simulation approach and the selected material model is presented, followed by an explanation of the coupling conditions for the interface between the fluid and the poroelastic material. To illustrate the plausibility of this coupling, flow-induced structure-borne sound entry into an airfoil-like structure, layered with a porous material, is examined. The analysis is carried out on a finite element method-based in-house code.
Modeling of Flow-Induced Sound in Poroelastic Materials
The use of poroelastic materials on the surfaces under flows-part of the Collaborative Research SFB 880, "Fundamentals of high-lift for future commercial aircrafts"- is investigated. Besides the positive influence that porous surfaces have on aeroacoustics, a poroelastic layer may also help reduce the impact sound. An approach to model the interface between a flow and a poroelastic material, which tracks the propagation of flow-induced structure-borne sound into the poroelastic medium, is illustrated. Firstly, the overall simulation approach and the selected material model is presented, followed by an explanation of the coupling conditions for the interface between the fluid and the poroelastic material. To illustrate the plausibility of this coupling, flow-induced structure-borne sound entry into an airfoil-like structure, layered with a porous material, is examined. The analysis is carried out on a finite element method-based in-house code.
Modeling of Flow-Induced Sound in Poroelastic Materials
Zahid, M. (Autor:in) / Beck, S. C. (Autor:in) / Langer, S. (Autor:in)
Fifth Biot Conference on Poromechanics ; 2013 ; Vienna, Austria
Poromechanics V ; 882-890
18.06.2013
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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