Error estimate for convection problem with characteristics method
Error estimate for convection problem with characteristics method
复制标题
对流问题的特征法误差估计
DOI：
10.1023/a:1019188825338
复制
发表时间：
1999
影响因子：
2.1
通讯作者：
A. Machmoum
中科院分区：
文献类型：
--
作者：
J. Baranger;D. Esslaoui;A. Machmoum
本文用特征线方法，采用伪时间步长k和Pr间断有限元，在Th网格上对一阶定常对流问题进行了数值逼近。当入口流场为Ω填充时，在技术假设下，证明了连续和离散变分问题（Pk）和P（hk）的存在唯一性，并给出了误差估计.
We consider the numerical approximation of a first order steady-state convective problem by the method of characteristics with pseudo-time step k and Pr discontinuous finite elements on a mesh Th. We show, when the entry flow field is Ω filling and under a technical hypothesis, the existence and the uniqueness for the continuous and the discrete variational problems (Pk) and P(hk) and we give an error estimate.