Numerical Analysis of the Rapid Solidification Process of NiTi Binary Alloy

• Authors: P. Ternik , M. Zadravec , M. Svetec , R. Rudolf
• Languages of publication: EN

Abstracts

EN

The objective of the present work is to analyse the solidification process of NiTi binary alloy. The physical medium is taken as an incompressible fluid where the heat is transferred by conduction and convection, including the thermal phase change phenomenon. The last one is modelled by the improvement procedure called enthalpy-porosity formulation, where the liquid-solid mushy zone is treated as a porous zone with porosity equal to the liquid fraction. The numerical model is based on the finite volume method in body fitted coordinates with a SIMPLER scheme to couple the pressure and velocity fields. The results are presented for the velocity and temperature field, as well as for the NiTi mass fraction during the solidification process.

Keywords

EN

64.70.Ja; 81.30.Fb; 44.05.+e

Discipline

• 81.30.Fb: Solidification
• 64.70.Ja: Liquid-liquid transitions
• 44.05.+e: Analytical and numerical techniques

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 1
• Pages: 43-47

Dates

published

2015-7

received

2014-09-04

(unknown)

2014-11-12

Contributors

author

P. Ternik

• Ternik Primož - Private Researcher, Bresterniška 163, Bresternica, Slovenia

author

M. Zadravec

• Faculty of Mechanical Engineering, Smetanova 17, Maribor, Slovenia

author

M. Svetec

• Pomurska akademsko znanstvena unija, Lendavska 5a, Murska Sobota, Slovenia

author

R. Rudolf

• Faculty of Mechanical Engineering, Smetanova 17, Maribor, Slovenia

References

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Identifiers

DOI

10.12693/APhysPolA.128.43