A Study on Influence of Channel-Width on Drowning Risk in a Narrow Water Channel by Using a Coupled Human Flow Simulation

Puntos clave

• The aim is to explore how changes in channel width influence drowning risk in narrow water channels during human flow simulations.
• Conducted coupled numerical analysis of human posture and open channel flow.
• Simulated a scenario where a person falls into a narrow water channel.
• Analyzed multiple combinations of channel width, water depth, and flow velocity.
• Narrower channel widths make it harder for individuals to rise to the water surface.
• Drowning risk increases with smaller channel widths.
• In shallow, narrow channels, water depth increases significantly near the individual, by up to 1.7 times the entering water depth.