Figure 8.
(a) The minimum thread radius hmin for a Johnson–Segalman fluid, as a function of time for different values of a. Only in the case of non-affine motion (a = 1) does the thread attain a static elastic solution. Break-up is observed for all values a ≠ 1. (b) Typical interface shapes for the collapse of a liquid bridge of Johnson–Segalman fluid close to break-up, for two values of the parameter a. The case a = 0.1 corresponds to t = 29.7747 and hmin = 0.000886, while for a = 0.9, t = 37.271 and hmin = 0.0124. (Online version in colour.)