抄録
An unsteady effect of the diffusion on diffusion-limited aggregation (DLA) is studied using the multiparticle DLA model on the deposition plate in two dimensions (strip geometry). The multiparticle model can take into account the propagation of diffusing particles from the upper boundary toward the deposition plate. The initial value problem of the unsteady diffusion equation is simulated by the multiparticle DLA model. The morphological evolution is investigated by means of computer simulations. With increasing concentration, the morphology of the deposit becomes different from that grown in a steady state. In the dilute limit, the structure of the deposit agrees with that of the steady state.
