Prediction–Correction Method for Parallelizing Implicit 2D Hydrodynamic Models. I: Scheme

摘要: AbstractParallel solutions of linear systems arising from velocity–pressure coupling in implicit two-dimensional (2D) hydrodynamic models are usually difficult and inefficient. Using domain decomposition, a prediction–correction parallelization method is proposed to solve such parallel. It as special for parallelizing simulations free-surface flows alluvial rivers. Rather than solving large-scale global system over the whole domain, solves sub subdomains two steps, prediction correction. For rivers, gravity wave propagation divided into internal external parts, moving within subdomain across its boundaries, respectively. The part assumed be well solved at step; then correction step using updated boundary values initial estimates. A theoretical analysis conducted derive comp...