%0 Journal Article %T Effect of Individual Properties of Flexible Chainlike Walkers in a Many- Body System %A Takashi Mashiko %J The Open Transport Phenomena Journal %D 2009 %I %R 10.2174/1877729500901010030] %X Several versions of the ¡°flexible chainlike walker¡± (FCW) model are proposed and investigated by numerical simulations on a square lattice. It is shown that the ¡°original¡± FCWs aggregate spontaneously and irreversibly, where no adherence is assumed, triggered by ¡°mutual locking¡±. This is in complete contrast to established aggregation models which necessarily require adherence, and exemplifies the significance of the deformability of self-driven objects. The behaviors of the ¡°smart¡± FCWs, which have higher ability of moving, are similar to those of the original FCWs. This suggests that the spontaneous, irreversible aggregation is a robust feature peculiar to a many-body system of deformable self-driven objects. On the other hand, the ¡°double-headed¡± FCWs do not undergo the mutual locking and the resultant irreversible aggregation, unlike the original and the smart FCWs. This indicates that ¡°bidirectionality¡± prevents deformable self-driven objects from aggregating. %U http://www.benthamscience.com/open/totpj/articles/V001/30TOTPJ.htm