Abstract
Simulating 3-D beach deformation numerical model with usual scalar computer, computation load is considerably heavy even for prediction of seabed evolution in the region of 4 kilometers around coastal structure in interval of 1 year. However, introducing vector-pararel computation suitable for each sub-model consisting of beach deformation model, computation performance can be efficiently increased. In this paper, a methodology of vector-pararel computation for 3-D beach deformation model subject to sediment sand of mixed grain size is investigated and proposed. This numerical model is applied to a field site of sea area around the Higashidori power plant of the Tohoku Electric Power Company and effect of vector-pararel computation is verified.
