Depth-Averaged Non-Hydrostatic Hydrodynamic Model Using a New Multithreading Parallel Computing Method

摘要: Compared to the hydrostatic hydrodynamic model, non-hydrostatic model can accurately simulate flows that feature vertical accelerations. The model’s low computational efficiency severely restricts its wider application. This paper proposes a based on multithreading parallel computing method. horizontal momentum equation is obtained by integrating Navier–Stokes equations from bottom free surface. approximated Keller-box scheme. A two-step method used solve equations. strategy block decomposition computation utilized. original domain subdivided into two subdomains are physically connected via virtual boundary technique. Two sub-threads created and tasked with of subdomains. producer–consumer thread lock technique achieve synchronous communication between sub-threads. validity was verified solitary wave propagation experiments over flat slope, followed sinusoidal submerged breakwater. proposed here found effectively enhance save 20%–40% time compared serial computing. acceleration rate approximately 1.45% 72%, respectively. makes contribution popularization models.