Hydrogen dispersion simulation from a 35mm×35mm square nozzle of the Hallway model

Abstract

This paper describes about CFD results of the Hallway model, changed leak size 35mm×35mm instead of 150mm ×300mm.Hydrogen concentration at sensor 1 and sensor 4 decreased to 0.25%, and disappeared hydrogen concentration fluctuation. These results show too large hydrogen leak size generate ambient air reveers flow into hydrogen leak and makes hydrogen flow fluctuation.