Fig. 3.

Effects of number of cilia. (A and B) Flow around the ciliate in effective stoke. The color represents the flow magnitude. (C) Averaged swimming velocity; the body length is fixed to $2a/L=20$. C, Inset indicates the power as a function of $N$. (D and E) Swimming efficiency with various $N$ and body radius $a$. Filled symbols indicate the maximum efficiency. Anti, antiplectic; symp, symplectic.