Fig. 11.

Swimming properties of a 5-7-5 swimmer with cilia beat in the longitudinal direction (${\theta }_r=0$), for various phase lags $\chi$ and latitudinal modes $k_{\phi }$. a Alignment angle $\alpha$; b Rotation frequency ${\mathrm{\Omega }}_c$, normalized by the beat period $\tau$; c Inverse correlation time $\kappa$, normalized by the rotational diffusion time ${\tau }_{\mathrm{rot}}=1/(2D_{\mathrm{rot}})$, with $D_r=k_{B}T/(8\pi {\eta }_f{R}^3)$, where ${\eta }_f$ is the fluid viscosity. d Helix radius $R_h$ in units of the body radius R, as obtained from Eq. (5)