Numerical analysis of a characteristic stabilized finite element method for the time-dependent Navier-Stokes equations with nonlinear slip boundary conditions
Numerical analysis of a characteristic stabilized finite element method for the time-dependent Navier-Stokes equations with nonlinear slip boundary conditions
复制标题
具有非线性滑移边界条件的瞬态纳维-斯托克斯方程的特征稳定有限元方法的数值分析
DOI:
10.1016/j.cam.2017.01.012
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发表时间:
2017-08
影响因子:
2.4
通讯作者:
Zhang Zhonghua
中科院分区:
文献类型:
--
作者:
Jing Feifei;Li Jian;Chen Zhangxin;Zhang Zhonghua
Based on a characteristic method, this work is concerned with a finite element approximation to the time-dependent Navier–Stokes equations with nonlinear slip boundary conditions. Since this slip boundary condition of friction type contains a subdifferential property, its continuous variational problem is formulated as an inequality, which can turn into an equality problem by using a powerful regularized method. Then a fully discrete characteristic scheme under the stabilized lower order finite element pairs is proposed for the equality problem. Optimal error estimates for velocity and pressure are derived under the corresponding L 2, H 1-norms. Finally, a smooth problem test is reported to demonstrate the theoretically predicted convergence order and the expected slip phenomena, and the simulation of a bifurcated blood flow model is displayed to illustrate the efficiency of the proposed method.
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DOI:
10.1016/j.cam.2007.02.015
发表时间:
2008-04-15
影响因子:
2.4
作者:
Li, Jian;He, Yinnian
通讯作者:
He, Yinnian
DOI:
10.1016/s0377-0427(02)00520-4
发表时间:
2002-12
影响因子:
2.4
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H. Fujita
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作者:
Chen, Zhangxin;Li, Jian
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Li, Jian
影响因子:
2.4
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通讯作者:
Li, Kaitai
影响因子:
1.8
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X. Dai;Peipei Tang;Minghui Wu
通讯作者:
X. Dai;Peipei Tang;Minghui Wu