Second order fully discrete and divergence free conserving scheme for time-dependent conduction–convection equations

Second order fully discrete and divergence free conserving scheme for time-dependent conduction–convection equations
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瞬态传导-对流方程的二阶完全离散且无发散守恒方案

DOI:
10.1016/j.icheatmasstransfer.2014.10.019
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发表时间:
2014-12
影响因子:
7
通讯作者:
Feng, Xinlong
Feng, Xinlong
中科院分区:
工程技术2区
文献类型:
--
作者:
Su, Haiyan;Qian, Lingzhi;Gui, Dongwei;Feng, Xinlong

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这项工作提出了二维瞬态传导-对流方程的克兰克-尼科尔森外推方案。应用混合有限元方法对速度、压力和温度进行空间近似。时间离散化基于线性项的 Crank-Nicolson 格式和非线性项的半隐式格式。此外,还推导了稳定性分析和误差估计。最后,数值试验证实了该方法的理论结果,并表明该有效方法在一定程度上保留了原始方程的散度性质。
This work presents a Crank–Nicolson extrapolation scheme for the two-dimensional time-dependent conduction–convection equations. Mixed finite element method is applied for the spatial approximation of the velocity, pressure and temperature. The time discretization is based on the Crank–Nicolson scheme for the linear term and semi-implicit scheme for the nonlinear term. Moreover, the stability analysis and error estimations are derived. Finally, numerical tests confirm the theoretical results of the presented method and show the efficient method conserves the property of divergence free of the original equations to some extent.
DOI: --
发表时间: 2009
影响因子: 1.1
作者:
Shi, Dongyang;Ren, Jincheng
通讯作者: Ren, Jincheng
DOI: 10.1007/bfb0063447
发表时间: 1979-11
期刊: --
影响因子: --
作者:
V. Girault;P. Raviart
通讯作者: V. Girault;P. Raviart
DOI: 10.1016/0045-7825(92)90115-z
发表时间: 1992-10
期刊: Applied Mechanics and Engineering
影响因子: --
作者:
J. Simo;N. Tarnow;K. Wong
通讯作者: J. Simo;N. Tarnow;K. Wong
DOI: 10.1137/0727037
发表时间: 1990-06
影响因子: 2.9
作者:
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通讯作者: Yanping Lin
DOI: 10.1080/01630569008816383
发表时间: 1990-01-01
影响因子: 1.2
作者:
BOLAND, J;LAYTON, W
通讯作者: LAYTON, W