In this paper the numerical method for solution of an aeroelastic model describing the interactions of air flow with vocal folds is described.The flow is modelled by the incompressible Navier-Stokes equations spatiall...In this paper the numerical method for solution of an aeroelastic model describing the interactions of air flow with vocal folds is described.The flow is modelled by the incompressible Navier-Stokes equations spatially discretizedwith the aid of the stabilized finite element method.The motion of the computational domain is treated with the aid of the Arbitrary Lagrangian Eulerian method.The structure dynamics is replaced by a mechanically equivalent system with the two degrees of freedom governed by a system of ordinary differential equations and discretized in time with the aid of an implicit multistep method and strongly coupled with the flow model.The influence of inlet/outlet boundary conditions is studied and the numerical analysis is performed and compared to the related results from literature.展开更多
基金This research was supported by the Project OC 09019“Modelling of voice production based on biomechanics”within the program COST of the Ministry of Education of the Czech Republic,under grants No.201/08/0012 and No.P101/11/0207 of the Grant Agency of the Czech Republic and the Research Plan MSM6840770003 of the Ministry of Education of the Czech Republic.
文摘In this paper the numerical method for solution of an aeroelastic model describing the interactions of air flow with vocal folds is described.The flow is modelled by the incompressible Navier-Stokes equations spatially discretizedwith the aid of the stabilized finite element method.The motion of the computational domain is treated with the aid of the Arbitrary Lagrangian Eulerian method.The structure dynamics is replaced by a mechanically equivalent system with the two degrees of freedom governed by a system of ordinary differential equations and discretized in time with the aid of an implicit multistep method and strongly coupled with the flow model.The influence of inlet/outlet boundary conditions is studied and the numerical analysis is performed and compared to the related results from literature.
