A second-order linearized finite difference method for a higher order convective Cahn-Hilliard type equation(高阶对流Cahn-Hilliard型方程的二阶线性化差分方法)

高阶对流Cahn-Hilliard型方程是一类空间六阶且具有四阶非线性项的发展方程。首先,给出了线性化差分格式,其第一时间层为2层隐式差分格式,其余时间层为3层隐式差分格式。其次,在差分格式建立过程中,利用中心差商对四阶非线性项进行离散,证明了差分格式解的唯一性和收敛性,并得到其在时间和空间上的收敛阶均为二阶。最后,通过数值算例,验证了差分格式的有效性。...

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Main Author: LIJuan(李娟)
Format: Article
Language:zho
Published: Zhejiang University Press 2022-01-01
Series:Zhejiang Daxue xuebao. Lixue ban
Subjects:
Online Access:https://doi.org/10.3785/j.issn.1008-9497.2022.01.009
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author LIJuan(李娟)
author_facet LIJuan(李娟)
author_sort LIJuan(李娟)
collection DOAJ
description 高阶对流Cahn-Hilliard型方程是一类空间六阶且具有四阶非线性项的发展方程。首先,给出了线性化差分格式,其第一时间层为2层隐式差分格式,其余时间层为3层隐式差分格式。其次,在差分格式建立过程中,利用中心差商对四阶非线性项进行离散,证明了差分格式解的唯一性和收敛性,并得到其在时间和空间上的收敛阶均为二阶。最后,通过数值算例,验证了差分格式的有效性。
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spelling doaj.art-ce3e63cae8e1481d82fb9cf70c1be2022024-03-29T01:58:40ZzhoZhejiang University PressZhejiang Daxue xuebao. Lixue ban1008-94972022-01-01491606510.3785/j.issn.1008-9497.2022.01.009A second-order linearized finite difference method for a higher order convective Cahn-Hilliard type equation(高阶对流Cahn-Hilliard型方程的二阶线性化差分方法)LIJuan(李娟)0https://orcid.org/0000-0003-1815-5708Department of Basis Course, Nanjing Audit University Jinshen College, Nanjing 210023, China(南京审计大学金审学院 基础部,江苏 南京 210023)高阶对流Cahn-Hilliard型方程是一类空间六阶且具有四阶非线性项的发展方程。首先,给出了线性化差分格式,其第一时间层为2层隐式差分格式,其余时间层为3层隐式差分格式。其次,在差分格式建立过程中,利用中心差商对四阶非线性项进行离散,证明了差分格式解的唯一性和收敛性,并得到其在时间和空间上的收敛阶均为二阶。最后,通过数值算例,验证了差分格式的有效性。https://doi.org/10.3785/j.issn.1008-9497.2022.01.009高阶对流cahn-hilliard型方程线性化差分格式唯一性收敛性非线性问题线性化
spellingShingle LIJuan(李娟)
A second-order linearized finite difference method for a higher order convective Cahn-Hilliard type equation(高阶对流Cahn-Hilliard型方程的二阶线性化差分方法)
Zhejiang Daxue xuebao. Lixue ban
高阶对流cahn-hilliard型方程
线性化差分格式
唯一性
收敛性
非线性问题
线性化
title A second-order linearized finite difference method for a higher order convective Cahn-Hilliard type equation(高阶对流Cahn-Hilliard型方程的二阶线性化差分方法)
title_full A second-order linearized finite difference method for a higher order convective Cahn-Hilliard type equation(高阶对流Cahn-Hilliard型方程的二阶线性化差分方法)
title_fullStr A second-order linearized finite difference method for a higher order convective Cahn-Hilliard type equation(高阶对流Cahn-Hilliard型方程的二阶线性化差分方法)
title_full_unstemmed A second-order linearized finite difference method for a higher order convective Cahn-Hilliard type equation(高阶对流Cahn-Hilliard型方程的二阶线性化差分方法)
title_short A second-order linearized finite difference method for a higher order convective Cahn-Hilliard type equation(高阶对流Cahn-Hilliard型方程的二阶线性化差分方法)
title_sort second order linearized finite difference method for a higher order convective cahn hilliard type equation 高阶对流cahn hilliard型方程的二阶线性化差分方法
topic 高阶对流cahn-hilliard型方程
线性化差分格式
唯一性
收敛性
非线性问题
线性化
url https://doi.org/10.3785/j.issn.1008-9497.2022.01.009
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