BASIC STUDY ON OBSTRUCTION OF TRANSPORT OF A WATER ACCIDENT SUFFERER WITH A WEIR-LIKE STRUCTURE IN A CHANNEL

Abstract

 A coupled human fluid numerical model was applied to transportion of a water accident sufferer in a channel with a weir-like obstacle on the bed. Simulations were conducted with 80 differrent combinations of water depth, flow velocity and weir height. As a result of the simulations, two different processes for getting over the weir were found. When flow speed exceeds 1m/s, the sufferer suspends in water and gets over the weir. Otherwise, if flow speed exceeds 0.5 m/s and weir’s height is less than 50cm, the sufferer gets over the weir in rolling on weir’s surface.