A Mathematical Model of an Impinging Air Jet on a Water Surface

QC 20100720
A fundamental mathematical model of the flow field and surface deformation caused by an impinging jet in a top blown reactor has been developed. The results have been validated against water model experiments. More specifically, the predicted penetration depth has been found to agree well with surface deformation measurements and predictions using analytical equations. Furthermore, the predictions of the location of a vortex have been found to agree fairly well with PIV measurements. Calculations were also done to compare the widely used standard k-ε model against the realizable extension of the standard k-ε model to calculate the turbulent conditions of the flow. It was found that the penetration depth caused by the impinging jet on the liquid surface is relatively unaffected by the choice of turbulence model employed. However, when the main re-circulation loop in the bath was investigated there was a clear distinction in the flow fields produced when the two different turbulence models were used.

TEKNIK OCH TEKNOLOGIER Materialteknik Metallurgi och metalliska material hsv//swe
ENGINEERING AND TECHNOLOGY Materials Engineering Metallurgy and Metallic Materials hsv//eng
CFD; top blowing; BOF; impinging jet; k-ε model; mathematical modeling
Metallurgical process engineering
Metallurgisk processteknik

Tilliander, AndersKTH,Tillämpad processmetallurgi(Swepub:kth)u1zaf6ay (författare)
Jonsson, LageKTH,Tillämpad processmetallurgi(Swepub:kth)u18isdqo (författare)
Jönsson, PärKTH,Tillämpad processmetallurgi(Swepub:kth)u118w09b (författare)
KTHTillämpad processmetallurgi (creator_code:org_t)

Ingår i:ISIJ International: Iron and Steel Institute of Japan48:4, s. 377-3840915-15591347-5460

Av författaren/redakt...: Ersson, Mikael, ...; Tilliander, Ande ...; Jonsson, Lage; Jönsson, Pär

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Materialteknik; och Metallurgi och m ...

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