The hydrodynamic characteristics of a rod-shaped squirmer swimming near wall were studied numerically using the immersed boundary-lattice Boltzmann method in Reynolds number range 0.1 ≤ Res 2.0, where assembled squirmers was 2 i 4 and distance between two adjacent 0.75 d s 1.5 (d is diameter single squirmer). effect Res, on mode explored. results showed that there are four modes after first col...