Review article

Verification of mathematical models for calculation of viscosity of molten oxide systems

S. Rosypalová ; VŠB-TU Ostrava, FMMI, Ostrava, Czech Republic
L. Řeháčková ; VŠB-TU Ostrava, FMMI, Ostrava, Czech Republic
J. Dobrovská ; VŠB-TU Ostrava, FMMI, Ostrava, Czech Republic
R. Dudek ; VŠB-TU Ostrava, FMMI, Ostrava, Czech Republic
L'. Dobrovský ; VŠB-TU Ostrava, FMMI, Ostrava, Czech Republic
M. Žaludová ; VŠB-TU Ostrava, FMMI, Ostrava, Czech Republic
B. Smetana ; VŠB-TU Ostrava, FMMI, Ostrava, Czech Republic

Abstract

The subject of this work is the comparison of numerically obtained values of dynamic viscosity using different types of mathematical models and experimentally measured data of viscosity of oxide systems. The ternary system of SiO₂-CaO-Al₂O₃, which presents simplified base of the casting powders used in technological process, was submitted to the experiment. Experimental research of dynamic viscosity is highly limited by its complexity. That’s why model studies play such an important role in this field. For mathematic calculation of viscosity the NPL model, Iida model and Urbain model were chosen. The results of simulation were compared with the experimentally obtained values of viscosity.

Keywords

mathematical modelling; viscosity; oxide melts

Hrčak ID:

119557

URI

https://hrcak.srce.hr/119557

Publication date:

1.7.2014.

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