The cochlea is the organ responsible for hearing and is filled with lymphatic fluid, which is vibrated by sound. In the cochlea, hair cells are stimulated by the vibrating fluid, and the stimulus is transmitted to the brain. In this paper, the effect of the arrangement of the hair cells on the flow and the stimuli that the hair cells receive were analyzed. The V-shaped arrangement of the hair cells was generally less stimulated by the vibrating flow by inducing the cells located outside to be intensively affected. When the distance between rows of hair cells was maximum, the flow in each row was independent. In the minimum distance, however, the hair cells were greatly stimulated by the influence generated from the cells located in the front and the back.