Modeling of dendrite growth from undercooled nickel melt: sharp interface model versus enthalpy method - Normandie Université Access content directly
Journal Articles Journal of Physics: Condensed Matter Year : 2020

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

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.

Dates and versions

hal-02943244 , version 1 (13-07-2021)

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A Kao, L Toropova, D Alexandrov, Gilles Demange, P Galenko. Modeling of dendrite growth from undercooled nickel melt: sharp interface model versus enthalpy method. Journal of Physics: Condensed Matter, 2020, 32 (19), pp.194002. ⟨10.1088/1361-648X/ab6aea⟩. ⟨hal-02943244⟩
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