Diffusion Spreading of the Emitted Metallurgical Gas
The main parameter which shows the space distribution of the emitted gas components is the rate of concentration decrease by the increase of the distance from the point where the emitted gas appears in the atmosphere. It is considered three different driving forces leading to the spreading of the emitted gas components from the centre of the metallurgical region to its periphery: diffusion factor – the appearance of the emitted substance is the reason of the local concentration increase, it correlates with the diffusion process; wind load factor – the wind movement acts always in advantage direction, wind force is not space homogeneous as the diffusion force is; chemical factor – the intensity of chemical interaction of emitted components with the atmospheric ones influences the space distribution of the interaction products (secondary emissions). The proposed method allows to predict the space-time distribution of the emitted metallurgical gas by various external conditions.
B.S. Bokstein, A.O. Rodin and B.B. Straumal
K.V. Vishnyakova et al., "Diffusion Spreading of the Emitted Metallurgical Gas", Defect and Diffusion Forum, Vols. 309-310, pp. 239-242, 2011