Figure 5.

The separation cross-sectional ratio (glottal area at the flow separation location divided by the minimal glottal area) for the different glottal angles and glottal radii (filled symbols), and the calculated ratio according to the lossless Bernoulli expression given in Shinwari et al. (2003), viz., D_s/D_m = [1 – (P_min/P_t)]^0.5, where D_s is the glottal diameter at the separation point, D_m is the minimal glottal diameter, P_min is the pressure at the minimal glottal diameter location, and P_t is the transglottal pressure, given by the unfilled symbols. The assumption of atmospheric pressure at flow separation was assumed for this expression. Also included are horizontal lines that indicate the range of ratio values reported in Alipour and Scherer (2004).