In order to study the influence of accidental leakage of liquid chlorine cylinder and chlorine diffusion. a 3D model of liquid chlorine cylinder for leakage diffusion is established according to the actual situation of chemical enterprises. Based on computational fluid dynamics (CFD) method. numerical simulation for chlorine diffusion in open space is carried out. https://www.mamapaisa.com/product-category/balayage-hair-color-brush/