Modeling of droplet-based processing for the production of high-performance particulate materials using the level set method

Pengtao Wang; Hongwei Sun; Peter Y. Wong; Hiroki Fukuda; Teiichi Ando

doi:10.1080/10407782.2012.654456

Modeling of droplet-based processing for the production of high-performance particulate materials using the level set method

Pengtao Wang, Hongwei Sun, Peter Y. Wong, Hiroki Fukuda, Teiichi Ando

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The dynamic and thermal processes of an Mg-Zn-Y alloy droplet's spreading and solidification are investigated using the level set method in order to understand their effects on the phase change process in a uniform droplet spray process. The level set method, driven with the solidification velocity predicted by a free dendritic growth model, is capable of tracking the evolution of the solidification front within the deformed droplet. It is found that the solidification process heavily depends on the initial thermal state of the droplet, the latent heat released during solidification, and the heat loss to the substrate. A rapid solidification occurs in the initial microseconds before a slow solidification process takes place.

Original language	English
Pages (from-to)	401-416
Number of pages	16
Journal	Numerical Heat Transfer; Part A: Applications
Volume	61
Issue number	6
DOIs	https://doi.org/10.1080/10407782.2012.654456
State	Published - Mar 15 2012
Externally published	Yes

Funding

Received 26 August 2011; accepted 3 December 2011. The authors acknowledge the financial support from the National Science Foundation (DMI Materials/Manufacturing #0423228). Address correspondence to Hongwei Sun, Department of Mechanical Engineering, University of Massachusetts at Lowell, 1 University Ave, Lowell, MA 01854, USA. E-mail: [email protected]

Funders	Funder number
National Science Foundation	DMI Materials/Manufacturing #0423228

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abstract = "The dynamic and thermal processes of an Mg-Zn-Y alloy droplet's spreading and solidification are investigated using the level set method in order to understand their effects on the phase change process in a uniform droplet spray process. The level set method, driven with the solidification velocity predicted by a free dendritic growth model, is capable of tracking the evolution of the solidification front within the deformed droplet. It is found that the solidification process heavily depends on the initial thermal state of the droplet, the latent heat released during solidification, and the heat loss to the substrate. A rapid solidification occurs in the initial microseconds before a slow solidification process takes place.",

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AU - Ando, Teiichi

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Modeling of droplet-based processing for the production of high-performance particulate materials using the level set method

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