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A finite element formulation for phase-change problems with advective effects

✍ Scribed by Celentano, Diego

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
191 KB
Volume
14
Category
Article
ISSN
1069-8299

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✦ Synopsis

A ®nite element formulation for solving transient multidimensional phase-change problems considering advective eects is presented. This temperature-based formulation includes the de®nition of a phase-change function able to deal with classical isothermal and non-isothermal phase-change cases. Moreover, a new upwind weight function is de®ned in order to avoid numerical oscillations in problems with dominant advective eects. Further, some important aspects related to its numerical implementation are also addressed. The ability of this methodology is illustrated, ®rstly, in the solution of a one-dimensional test example. Finally, the numerical simulation of a direct-chill continuous casting process is performed.

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