Surface Energy Influence on Supercooled Water Crystallization: A Computational Study TAKATA AG, EMEA New Devices Engineering

Format:

Conference/Event

Author/Creator:

Criscione, Criscione, author.

Contributor:

Jakirlic, Suad

Roisman, Ilia

Tropea, Cameron

Tukovic, Zeljko

Conference Name:

SAE 2015 International Conference on Icing of Aircraft, Engines, and Structures (2015-06-22 : Prague, Czech Republic)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2015

Summary:

AbstractNumerical experiments have been presently conducted aiming at studying the influence of the surface energy on the crystallization process of supercooled water in terms of the supercooling degrees. The mathematical model consists primarily of the equation governing the thermal energy field solved independently in both phases in accordance with the two-scalar approach by utilizing the Stefan condition at the interface to couple both temperature fields. The computational algorithm relying on the level-set method for solid-liquid interface capturing has been appropriately upgraded aiming at accuracy level increase with respect to the discretization of the thermal energy equation and the normal-to-interface derivative of the temperature field. The model describes the freezing mechanism under supercooled conditions, relying on the physical and mathematical description of the two-phase moving-boundary approach. The relevant numerical algorithm is implemented into the open source software OpenFOAM®. The results obtained illustrate the stabilizing effect of the surface energy compared to the level of supercooling. The effect of the anisotropy of the interfacial energy on the ice nucleus growth, resulting in a six-fold crystal shape, is also illustrated

Notes:

Vendor supplied data

Publisher Number:

2015-01-2115

Access Restriction:

Restricted for use by site license