Volume 51, Issue 1
Convergence Analysis of an Unconditionally Energy Stable Linear Crank-Nicolson Scheme for the Cahn-Hilliard Equation

Lin Wang & Haijun Yu

J. Math. Study, 51 (2018), pp. 89-114.

Published online: 2018-04

Export citation
  • Abstract

Efficient and unconditionally stable high order time marching schemes are very important but not easy to construct for nonlinear phase dynamics. In this paper, we propose and analysis an efficient stabilized linear Crank-Nicolson scheme for the Cahn-Hilliard equation with provable unconditional stability. In this scheme the nonlinear bulk force are treated explicitly with two second-order linear stabilization terms. The semi-discretized equation is a linear elliptic system with constant coefficients, thus robust and efficient solution procedures are guaranteed. Rigorous error analysis show that, when the time step-size is small enough, the scheme is second order accurate in time with a prefactor controlled by some lower degree polynomial of $1/ \varepsilon.$ Here $\varepsilon$ is the interface thickness parameter. Numerical results are presented to verify the accuracy and efficiency of the scheme.

  • AMS Subject Headings

65M12, 65M15, 65P40

  • Copyright

COPYRIGHT: © Global Science Press

  • Email address

wanglin@lsec.cc.ac.cn (Lin Wang)

hyu@lsec.cc.ac.cn (Haijun Yu)

  • BibTex
  • RIS
  • TXT
@Article{JMS-51-89, author = {Wang , Lin and Yu , Haijun}, title = {Convergence Analysis of an Unconditionally Energy Stable Linear Crank-Nicolson Scheme for the Cahn-Hilliard Equation}, journal = {Journal of Mathematical Study}, year = {2018}, volume = {51}, number = {1}, pages = {89--114}, abstract = {

Efficient and unconditionally stable high order time marching schemes are very important but not easy to construct for nonlinear phase dynamics. In this paper, we propose and analysis an efficient stabilized linear Crank-Nicolson scheme for the Cahn-Hilliard equation with provable unconditional stability. In this scheme the nonlinear bulk force are treated explicitly with two second-order linear stabilization terms. The semi-discretized equation is a linear elliptic system with constant coefficients, thus robust and efficient solution procedures are guaranteed. Rigorous error analysis show that, when the time step-size is small enough, the scheme is second order accurate in time with a prefactor controlled by some lower degree polynomial of $1/ \varepsilon.$ Here $\varepsilon$ is the interface thickness parameter. Numerical results are presented to verify the accuracy and efficiency of the scheme.

}, issn = {2617-8702}, doi = {https://doi.org/10.4208/jms.v51n1.18.06}, url = {http://global-sci.org/intro/article_detail/jms/11317.html} }
TY - JOUR T1 - Convergence Analysis of an Unconditionally Energy Stable Linear Crank-Nicolson Scheme for the Cahn-Hilliard Equation AU - Wang , Lin AU - Yu , Haijun JO - Journal of Mathematical Study VL - 1 SP - 89 EP - 114 PY - 2018 DA - 2018/04 SN - 51 DO - http://doi.org/10.4208/jms.v51n1.18.06 UR - https://global-sci.org/intro/article_detail/jms/11317.html KW - phase field model, Cahn-Hilliard equation, unconditionally stable, stabilized semi-implicit scheme, high order time marching. AB -

Efficient and unconditionally stable high order time marching schemes are very important but not easy to construct for nonlinear phase dynamics. In this paper, we propose and analysis an efficient stabilized linear Crank-Nicolson scheme for the Cahn-Hilliard equation with provable unconditional stability. In this scheme the nonlinear bulk force are treated explicitly with two second-order linear stabilization terms. The semi-discretized equation is a linear elliptic system with constant coefficients, thus robust and efficient solution procedures are guaranteed. Rigorous error analysis show that, when the time step-size is small enough, the scheme is second order accurate in time with a prefactor controlled by some lower degree polynomial of $1/ \varepsilon.$ Here $\varepsilon$ is the interface thickness parameter. Numerical results are presented to verify the accuracy and efficiency of the scheme.

Lin Wang & Haijun Yu. (2019). Convergence Analysis of an Unconditionally Energy Stable Linear Crank-Nicolson Scheme for the Cahn-Hilliard Equation. Journal of Mathematical Study. 51 (1). 89-114. doi:10.4208/jms.v51n1.18.06
Copy to clipboard
The citation has been copied to your clipboard