Modeling of dendrite growth from undercooled nickel melt: sharp interface model versus enthalpy method.

Clicks: 158
ID: 84340
2020
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Ranked #47 of 53 articles by views in journal of physics condensed matter : an institute of physics journal

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Abstract
The dendritic growth of pure materials in undercooled melts is critical to understanding the fundamentals of solidification. This work investigates two new insights, the first is an advanced definition for the two-dimensional stability criterion of dendritic growth and the second is the viability of the enthalpy method as a numerical model. In both cases, the aim is to accurately predict dendritic growth behavior over a wide range of undercooling. An adaptive cell size method is introduced into the enthalpy method to mitigate against `narrow-band features' that can introduce significant error. By using this technique an excellent agreement is found between the enthalpy method and the analytic theory for solidification of pure nickel.
Reference Key
kao2020modelingjournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Kao, Andrew;Toropova, Liubov V;Alexandrov, Dmitri;Demange, Gilles;Galenko, Peter;
Journal journal of physics condensed matter : an institute of physics journal
Year 2020
DOI
10.1088/1361-648X/ab6aea
URL
Keywords
analytic theory enthalpy method undercooled solidification

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