An experimental study is carried out to determine the penetrability of impinging gas jets in molten steel baths of BOF and combined blown steelmaking. Depth and diameter of the depression produced by an impinging single jet or multi‐nozzle jets are measured and correlated successfully with dimensionless momentum flow rate number. The equations are represented in the form of a nomogram by which the depth and diameter of the depression in a molten steel bath during the blow can be determined from easily available top blowing parameters.
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Koria et al. (1987) studied this question.
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