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AN UNCONDITIONALLY GRADIENT STABLE NUMERICAL METHOD FOR THE OHTA-KAWASAKI MODEL
- Authors
- Kim, Junseok; Shin, Jaemin
- Issue Date
- 1월-2017
- Publisher
- KOREAN MATHEMATICAL SOC
- Keywords
- block-copolymer; Ohta Kawasaki model; solvability; unconditionally gradient stability
- Citation
- BULLETIN OF THE KOREAN MATHEMATICAL SOCIETY, v.54, no.1, pp.145 - 158
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- BULLETIN OF THE KOREAN MATHEMATICAL SOCIETY
- Volume
- 54
- Number
- 1
- Start Page
- 145
- End Page
- 158
- ISSN
- 1015-8634
- Abstract
- We present a finite difference method for solving the Ohta Kawasaki model, representing a model of mesoscopic phase separation for the block copolymer. The numerical methods for solving the Ohta Kawasaki model need to inherit the mass conservation and energy dissipation properties. We prove these characteristic properties and solvability and unconditionally gradient stability of the scheme by using Hessian matrices of a discrete functional. We present numerical results that validate the mass conservation, and energy dissipation, and unconditional stability of the method.
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