Unidirectional rotation of circles driven by chiral active particles
Chen Jiamin, Zhou Xiaolin, Zhang Linxi †
       

(color online) Cumulative rotation angle β of a rigid circle as a function of time t for various number of boards (nB) with l = 3, ρ=0.1, ω = 0.1, and γ = π/2. The inset figure displays the average angular velocity of rigid circle with different number of boards nB.