Fig. 3
From: Characterizing dynamic behaviors of three-particle paramagnetic microswimmer near a solid surface
Schematic of the microswimmer actuated with simple rotation. Black dot and arrow refer to the rotation axis and direction of the microswimmer with angular velocity \(\omega\), respectively. Three blue arrows \(d_i\) are the vector positions of the three particles, and red arrows \(F_{d,i}\) are the drag forces exerted on each particle (i = 1, 2, 3)