Počet záznamů: 1  

On mathematical modeling of fluid-structure interactions with nonlinear effects: Finite element approximations of gust response

  1. 1. 0433144 - UT-L 2015 RIV NL eng J - Článek v odborném periodiku
    Sváček, P. - Horáček, Jaromír
    On mathematical modeling of fluid-structure interactions with nonlinear effects: Finite element approximations of gust response.
    Journal of Computational and Applied Mathematics. Roč. 273, Januar 2015 (2015), s. 394-403. ISSN 0377-0427
    Grant CEP: GA ČR(CZ) GAP101/11/0207
    Institucionální podpora: RVO:61388998
    Klíčová slova: turbulent flow * gust * aeroelasticity * RANS equations
    Kód oboru RIV: BI - Akustika a kmity
    Impakt faktor: 1.328, rok: 2015
    http://dx.doi.org/10.1016/j.cam.2014.05.006

    In this paper the numerical simulation of aeroelastic interactions of flexibly supported two-degrees of freedom (2-DOF) airfoil in two-dimensional (2D) incompressible viscous turbulent flow subjected to a gust (sudden change of flow conditions) is considered. The flow is modeled by Reynolds averaged Navier–Stokes equations (RANS), and by k−ωk−ω turbulence model. The considered flow problem is discretized in space using the fully stabilized finite element (FE) method implemented in the developed in-house program, which allows to solve interaction problems. In order to treat the time dependent inlet boundary condition the standard stabilization procedure was modified. Further, the under relaxation procedure was introduced in order to overcome the artificial instability of the coupling algorithm. The aeroelastic response to a sudden gust is numerically analyzed with the aid of the developed FE code.
    Trvalý link: http://hdl.handle.net/11104/0238718