Abstract
Numerical simulation of the acoustic signal generation in the human vocal tract is a very complex problem. The computational mesh is not static; it is deformed due to vibration of vocal folds. Movement of vocal folds is in this case prescribed as function of translation and rotation. A new boundary condition for the 2DOF motion of the vocal folds was implemented in OpenFOAM, an open-source software package based on finite volume method Work is focused on the dynamic mesh and deformation of structured meshes in the computation a package OpenFOAM. These methods are compared with focus onquality of the mesh (non-orthogonality, aspect ratio and skewness).
Highlights
In this time exists many physical problems where you do not make simulation on static mesh
This paper is focused on issue of dynamic mesh in computing package OpenFOAM
In the OpenFOAM used to Radial basic function for computing deformation mesh pseudo-solid method [2]
Summary
In this time exists many physical problems where you do not make simulation on static mesh. Internal points of the computational domain are translating and rotating During this process is very important to check mesh quality after the time step. If the shape of the domain boundary is time-varying it is important that the internal mesh preserves it is validity (no negative cell volume), quality, and boundary closure. In computational package OpenFOAM are main parameters of the quality of the finite volume mesh. This method is for the motion of the human vocal inconvenient. In the OpenFOAM used to Radial basic function for computing deformation mesh pseudo-solid method [2]. The chapter describes in more detail the techniques for solution of the mesh deformation in OpenFOAM These techniques are compared and results are shown for the case of the human vocal tract
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
