Numerical modelling of the thermal and fluid flow phenomena of the fluidity test

• Autorzy: Bokota, A. , Sowa, L.
• Języki publikacji: EN

Abstrakty

EN

In the paper, two mathematical models of the solidification of a cylindrical shaped casting, which take into account the process of filling the mould cavity with molten metal during the vertical fluidity test, has been proposed. In the general model, velocity and pressure fields were obtained by solving the momentum equations and the continuity equation, whereas the thermal fields were obtained by solving the heat conduction equation containing the convection term. In the simplified model, making assumptions relating to both the material and the geometry of the region, the general equations for continuity and momentum have been reduced to single equation for pressure. This approach leads as to accelerate significantly of the fluid flow calculations. In this model, coupling of the thermal and fluid flow phenomena has been taken into consideration by the changes of the fluidity function and thermophysical parameters of alloy with respect to the temperature. The problem has been solved by the finite element method.

Słowa kluczowe

PL

krzepnięcie; ciekły metal; płynność; modelowanie matematyczne

EN

solidification; molten metal flow; fluidity test; mathematical modelling

• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 1
• Strony: 15-18
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Bokota, A.

autor

Sowa, L.

• Częstochowa University of Technology, 73 Dąbrowskiego str. 42-200 Częstochowa, Poland,

Bibliografia

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