FLACS hydrogen module is the only commercial CFD simulation software in the world that has been verified by decades of large amounts of hydrogen test data. It is widely used in hydrogen safety research in electrolysis plants, metallurgy, hydrogen energy vehicles, nuclear industry,etc., at home and abroad. It can quickly predict the consequences of accidents, which is not only conducive to improving the level of hydrogen safety, but also helps designers choose more effective design solutions and protective measures,significantly reduces risks.