Heat-balance integral method in solidification problems involving small spatial perturbations

• Autorzy: Pauk V.
• Języki publikacji: EN

Abstrakty

EN

The heat-balance integral method is applied to solve the solidification problem involving a small spatial periodic fluctuations in the mold temperature. These initial irregularities lead to perturbations in the temperature field and the planar solidification line. The problem is reduced to linear differential equations for amplitudes of the interface perturbations and solutions are presented in closed forms. The numerical analysis is performed for a sinusoidal perturbation. Presented results show the oscillations in the solidification front as a function of time and parameters of the problem. The stability of an interface between solid and liquid phases is investigated.

Słowa kluczowe

EN

fluctuation phenomena; heat balance integral method; interface perturbations; interface stability; linear differential equations; liquid phase; numerical analysis; oscilation; small spatial perturbations; solid liquid transactions; solid phase; solidification; temperature distribution

PL

analiza numeryczna; faza ciekła; faza stała; krzepnięcie; równania różniczkowe liniowe

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Journal of Technical Physics
• Rocznik: 2000
• Tom: Vol. 41, no 1
• Strony: 65--74
• Opis fizyczny: Bibliogr. 10 poz.,Rys., wykr.,

Twórcy

autor

Pauk V.

• Department of Geotechnical and Structure Engineering, Łódź University Of Technology, Al. Politechniki 6, 93-950 Łódź, Poland