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Technical Briefs

Characterizing Ice Crystal Growth Behavior Under Electric Field Using Phase Field Method

[+] Author and Article Information
Zhi Zhu He

Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, P.O. Box 2711, Beijing 100190, China

Jing Liu1

Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, P.O. Box 2711, Beijing 100190, China; Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, Chinajliu@mail.ipc.ac.cn

1

Corresponding author.

J Biomech Eng 131(7), 074502 (Jun 04, 2009) (3 pages) doi:10.1115/1.3142978 History: Received October 17, 2008; Revised April 25, 2009; Published June 04, 2009

In this article, the microscale ice crystal growth behavior under electrostatic field is investigated via a phase field method, which also incorporates the effects of anisotropy and thermal noise. The multiple ice nuclei’s competitive growth as disclosed in existing experiments is thus successfully predicted. The present approach suggests a highly efficient theoretical tool for probing into the freeze injury mechanisms of biological material due to ice formation during cryosurgery or cryopreservation process when external electric field was involved.

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Copyright © 2009 by American Society of Mechanical Engineers
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Figures

Grahic Jump Location
Figure 1

Microscale dendritic ice crystal patterns with (a) fourfold structures without thermal noise, (b) sixfold structures with thermal noise, and (c) two seed and (d) four seed competitive growth. The parameters γ=0.04 and n=4 in (a) and (d), and γ=0.02 and n=6 in (b) and (c). The angle θ0=0 for (a)–(d).

Grahic Jump Location
Figure 2

The influence of electric field on ice crystal growth at (a) γ=0.04, n=4, and λ=0.1; at (b) γ=0.02, n=6, and λ=0.1; and at (c) and (d) γ=0.02, n=6, and λ=0.2. The angle θ0=0 for (a)–(c) and θ0=π/9 for (d).

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