This article focuses on vortex structure identification methods and their implementation into smoothed particle hydrodynamics (SPH) framework. The most common criteria based the local velocity gradient tensor analysis like Q-criterion, Δ-criterion, λ 2 -criterion are introduced together with for SPH data. A two-dimensional ‘double dam break’ problem was chosen as a test case because it results ...

In tsunami inundations or slope disasters of heavy rain, a lot floating debris driftwood logs are included in the flows. The damage to structures from solid body impacts is more severe than water pressure. order study free-surface flows that include debris, developing high-accurate simulation code with high performance for large-scale computations desired. We propose single-phase flow model bas...