The fully discrete fractional-step method for the Oldroyd model
The fully discrete fractional-step method for the Oldroyd model
复制标题
Oldroyd 模型的完全离散分步法
DOI:
10.1016/j.apnum.2018.03.003
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发表时间:
2018-07
影响因子:
2.8
通讯作者:
Yuan JinYun
中科院分区:
文献类型:
--
作者:
张通;千艳霞;Yuan JinYun
In this paper, we consider the stability and convergence results of numerical solutions in fully discrete fractional-step formulation for the Oldroyd model. The proposed numerical method is constructed by the decompositions of the viscosity in time part and the finite element method in space part. With some mild regularity assumptions on the exact solution, the unconditional stability results of the approximate solutions are established. Then, the first order spatial convergence for the “end-of-step” velocity is shown. Based on the above results, the optimal order approximations for the velocity and pressure in L 2-norm are obtained for the mesh size. Finally, two numerical examples are given to illustrate the established theoretical analysis and test the performances of the developed numerical method and show the influences of the memory term for the considered problem.
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DOI:
10.1137/07069609x
发表时间:
2008-10
期刊:
SIAM J. Numer. Anal.
影响因子:
--
作者:
A. Prohl
通讯作者:
A. Prohl
影响因子:
2.1
作者:
Jie Shen
通讯作者:
Jie Shen
影响因子:
1.4
作者:
Yinnian He;Yanping Lin;Semuel S. P. Shen;R. J. Tait
通讯作者:
Yinnian He;Yanping Lin;Semuel S. P. Shen;R. J. Tait
DOI:
10.1115/1.3169136
发表时间:
1985-09
期刊:
Journal of Applied Mechanics
影响因子:
--
作者:
R. Glowinski;J. Oden
通讯作者:
R. Glowinski;J. Oden
影响因子:
1.8
作者:
Kun Wang;Yueqiang Shang;R. Zhao
通讯作者:
Kun Wang;Yueqiang Shang;R. Zhao