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S. Zörner, M. Kaltenbacher, M. Döllinger:
"Multifield Phenomena Human Phonation: Fully Coupled Fluid-Structure Simulation Compared to Prescribed Movement";
Talk: International Summer School on Voice Assessment, Erlangen; 2012-07-03 - 2012-07-04.

The human phonation process is an interaction of fluid dynamics, structural mechanics and acoustics. A fully coupled
simulation is expensive concerning computational time. Simplifying the model to a pure fluid simulation and prescrib-
ing the vocal fold movement reduces these costs. The movement of the vocal folds may be gained by measurement.
In this paper the impact of this simplification will be analysed by studying different test cases. Thereby, the vocal fold
motion is extracted from a separate simulation and used as a forced movement for a pure fluid simulation. Addition-
ally, small changes to the vocal folds geometry is made to simulation inaccuracies which occur during measurements.
All computations are performed with our Finite Element (FE) based research code CFS++. The results showed dif-
ferences between the fully coupled approach and the prescribed approach. Since the deviation are acceptable to a
certain range, the pure fluid simulation is an alternative, to give an insight into a given problem. Thereby, significantly
decreasing the simulation time.

http://publik.tuwien.ac.at/files/PubDat_210946.pdf