Simulation on flow field and mixing phenomenon in RH degasser with ladle bottom blowing

Autor:	D-Q Geng, Hong Lei, J-C He
Rok vydání:	2012
Předmět:	Ladle Materials science Computer simulation Meteorology Degasser Mechanical Engineering Metals and Alloys Mixing (process engineering) Mechanics Flow field Physics::Fluid Dynamics Circulation (fluid dynamics) Mechanics of Materials Materials Chemistry Vacuum chamber Dimensionless quantity
Zdroj:	Ironmaking & Steelmaking. 39:431-438
ISSN:	1743-2812 0301-9233
DOI:	10.1179/1743281211y.0000000090
Popis:	A numerical method has been employed to investigate the flow field and mixing characteristic in the Rheinsahl–Heraeus (RH) degasser with side–bottom blowing. The numerical results showed that stream flows in the up snorkel, the vacuum chamber, the down snorkel and the ladle form a large rectangular circulation zone in the RH degasser with side–bottom blowing, which can enhance the circulation flow rate effectively. For an RH with side–bottom blowing, when the included angle of the line between bottom blowing location and ladle centre and the line between two snorkels is zero, the circulation flow rate increases initially with increasing dimensionless distance between the bottom blowing location and the ladle centre and then decreases, while the mixing time increases with increasing dimensionless distance. On the other hand, when the dimensionless distance is 0·2, both the circulation flow rate and the mixing time decrease with the increasing included angle initially, reach their minimum value and ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ba0b11cfd6a69b9835600267e0eb1679 https://doi.org/10.1179/1743281211y.0000000090 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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