Numerical study of dendritic growth during solidification using front-tracking method

7th European Thermal-Sciences Conference

Jaafar, Mohamad Ali^1,2 ; Gibout, Stéphane^1 ; Rousse, Daniel^2 ; Bédécarrats, Jean-Pierre^1

Univ. Pau and Pays Adour, EA1932, LATEP, Laboratoire de Thermique Energétique et Procédés, ENSGTI, Rue Jules Ferry, BP7511 - PAU, F-64075, France^1

T3e Industrial Research Group, Ecole de Technologie Supérieure, Montréal

QC, Canada^2

关键词: Dendritic growth;    Front Tracking method;    Interface evolution;    Liquid-solid interfaces;    Pure substances;    Solidification process;    Test examples;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/745/3/032128/pdf
DOI  :  10.1088/1742-6596/745/3/032128

来源: IOP

【 摘 要 】

A two dimensional front-tracking method is developed in order to model dendritic growth during solidification processes of pure substances. The method uses a sequential set of moving marker points to describe and track the liquid-solid interface which evolves over a fixed background mesh describing the whole medium. The code behaviour is first checked by a simple stable case of solidification to provide homogeneous velocity at the interface. Then, test examples of unstable solidification cases considering different modes of anisotropy are performed. Finally, interface evolution, with primary and secondary branches, is described, showing the ability of the code to study realistic dendritic growth characteristics.