Modified Laplacian Growth under Shear Flow

Pattern formation is investigated in the modified Laplacian growth model with the third boundary condition under shear flow. The modified Laplacian growth model is simulated by the diffusion-limited aggregation (DLA) with both sticking probability and drift. Morphological changes of DLA under shear flow are studied by computer simulation. The shear flow has an important effect on morphology of the deposit. It is found that the deposit leads to the formation of a characteristic needle morphology, the needle inclines to shear flow, and the width of the needle increases with decreasing sticking probability.