Computation of flow through a time-varying rectangular orifice

This talk will present results of a computation of the flow through a time-varying rectangular orifice.~ The geometry and motion of the walls are meant to produce a flow dynamically similar to that in the human glottis during phonation, and to experiments.~ The computations were performed using acuSolve, a 2nd-order accurate (time {\&} space), finite-element flow solver from acuSim Corporation of Mountain View, CA. Four cases are studied, corresponding to a reduced frequency of vibration ranging from 0.01 to 0.04, and a Reynolds number of 8000.~ The results are compared to experiments performed in the same geometry, Reynolds number, and reduced frequency.