Figure 5.
Basal body coupling and hydrodynamic interactions. (a) Steady state phase sum 
and (b) external radii 
and 
. Results are shown for 
, 0.006, 0.007, 0.017, 
with 
and 
. For intermediate values of ky, the external rotors display a permanent difference in their average radii despite being identical. Electronic supplementary material movies 1–5 show the dynamics for (i)–(v), respectively. (c) Value of 
as a function of ky for various values of l (results shown for 
, 20, 25, 35, 50, 
). The transition zone boundaries are quantified by 
(red crosses) and 
(blue crosses) respectively; dashed black lines show far-field analytical predictions to leading order (from equation (4.1)). (d) Measured boundaries compared with leading order far-field analytical results. (e) The variance of the time-dependent phase sum, 
, for given values of ky and l, reveals large excursions in the phase sum prior to the bifurcation (see (a(ii)) for the raw time-dependent signal). (Online version in colour.)