engleski

Development of Hydro-Debris 2D and 3D applicable for stony debris flow

The aim of this survey is to develop numerical prediction method "Hydro-Debris 2D" and "Hydro-Debris 3D" applicable for Croatian catchment. They are Euler-Lagrangian Coupling method for stony debris flow with particle sizes, applicable both for experimental field and estimation of real rock movement. We investigate velocity of each sediment movement through steep-slope channel experimental study, and then compared with numerical simulation results using Hydro-Debris 2D. We employed three different slope angles (15, 20, and 25 degrees) both for experimental and numerical studies. The average velocity values are well simulated in numerical study within 10% difference, in most cases, while some specific case differs much, especially at the last part of debris flow. Based on these results, Hydro-Debris 3D model has also developed and applied for Grohovo Landslide zone. Although there is no "experimental" study for the landslide zone, our model may predict movement of individual particles, as we assumed that the grain sizes are uniform.

Hydro-Debris 2D ; Hydro-Debris 3D ; Euler-Lagrangian Coupling method ; debris flow ; Grohovo landslide ; experimental and numerical studies

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