ライブラリ登録: Guest
Proceedings of CHT-08 ICHMT International Symposium on Advances in Computational Heat Transfer
May, 11-16, 2008, Marrakesh, Morocco

DOI: 10.1615/ICHMT.2008.CHT


ISBN Print: 978-1-56700-253-9

ISSN: 2578-5486

EFFECT OF SHRINKAGE ON Al−Si ALLOY SOLIDIFICATION

page 13
DOI: 10.1615/ICHMT.2008.CHT.2220
Get accessGet access

要約

Two dimensional, transient fluid flow induced by density difference between solid and liquid during downward solidification of Aluminum − Silicon (Al-Si) alloy was simulated. The solidification process was carried out inside a cylindrical container. Effect of shrinkage on solidification time, temperature distribution and fluid flow was investigated. Mass conservation, momentum, energy, and concentration equations were coupled and solved iteratively using an implicit numerical algorithm based on the finite - volume method. Local thermal dynamic equilibrium assumption was employed to establish relationship between temperature and liquid concentration inside the mushy zone. Numerical results have been verified and found in good agreement with experimental data. Shrinkage was found to increase local temperatures during solidification and hence resulted in increase of solidification time. Numerical simulation indicated that flow velocity was increased and direction was changed with the consideration of shrinkage during solidification.

Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集 価格及び購読のポリシー Begell House 連絡先 Language English 中文 Русский Português German French Spain