Equal-order finite elements with nodal projection stabilization for Darcy-Forchheimer model
Equal-order finite elements with nodal projection stabilization for Darcy-Forchheimer model
复制标题
Darcy-Forchheimer 模型具有节点投影稳定的等阶有限元
DOI:
10.1002/num.22591
复制
发表时间:
2020
影响因子:
3.9
通讯作者:
许秋燕
中科院分区:
文献类型:
--
作者:
张现强;许秋燕
In this paper, we propose and analyze a stabilized mixed finite element method based on a local Scott–Zhang projector for Darcy–Forchheimer model, using continuous equal‐order finite elements for the velocity and pressure. This type of method belongs to the class of symmetric stabilization techniques, which provides additional control over the fluctuations of the velocity divergence and pressure gradient. An optimal error estimate in theH(div)‐norm for the velocity and quasi‐optimal error estimates in theL2‐norm for the velocity and pressure are derived. Numerical experiments are performed to demonstrate the convergence properties of the method.