Analysis and improvement of human stability in floodwaters through numerical simulation with SPH-DEM model

• Published in: Journal of hydraulic research Vol. 63; no. 1; pp. 126 - 137
• Main Authors: Zhang, Lifang, Zhang, Jianmin
• Format: Journal Article
• Language: English
• Published: Madrid Taylor & Francis 02.01.2025; Taylor & Francis Ltd
• Subjects: Body height; Coefficient of friction; Deformation; Discrete element method; Floodwater; Fluid-structure interaction; Formulae; Human instability; Hydrodynamics; incipient velocity; Instability; Interaction models; Mathematical models; numerical simulation; Posture; Smooth particle hydrodynamics; SPH-DEM; Stability criteria; urban flooding; Velocity; Water depth

This study improves the formulae for determining the incipient velocity of sliding and toppling instability through force analysis. It introduces a self-adjusting posture parameter to make the approach applicable to actual human subjects. In addition, a novel concept of critical water depth is propo...