Verification and convergence study of a spectral-element numerical methodology for fluid-structure interaction
Verification and convergence study of a spectral-element numerical methodology for fluid-structure interaction
复制标题
流固耦合谱元数值方法的验证和收敛性研究
DOI:
10.1016/j.jcpx.2021.100084
复制
发表时间:
2021
影响因子:
4.1
通讯作者:
Peet, Yulia T
中科院分区:
文献类型:
--
作者:
Xu, YiQin;Peet, Yulia T
A high-order in space spectral-element methodology for the solution of a strongly coupled fluid-structure interaction (FSI) problem is developed. A methodology is based on a partitioned solution of incompressible fluid equations on body-fitted grids, and nonlinearly-elastic solid deformation equations coupled via a fixed-point iteration approach with Aitken relaxation. A comprehensive verification strategy of the developed methodology is presented, includingh-,p- and temporal refinement studies. An expected order of convergence is demonstrated first separately for the corresponding fluid and solid solvers, followed by a self-convergence study on a coupled FSI problem (self-convergence refers to a convergence to a reference solution obtained with the same solver at higher resolution). To this end, a new three-dimensional fluid-structure interaction benchmark is proposed for a verification of the FSI codes, which consists of a fluid flow in a channel with one rigid and one flexible wall. It is shown that, due to a consistent problem formulation, including initial and boundary conditions, a high-order spatial convergence on a fully coupled FSI problem can be demonstrated. Finally, a developed framework is applied successfully to a Direct Numerical Simulation of a turbulent flow in a channel interacting with a compliant wall, where the fluid-structure interface is fully resolved.
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DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
M. Fernández;Jimmy Mullaert;M. Vidrascu
通讯作者:
M. Vidrascu
影响因子:
2.6
作者:
Yiqin Xu;Y. Peet
通讯作者:
Y. Peet
DOI:
10.1016/j.jcp.2019.01.048
发表时间:
2019
期刊:
J. Comput. Phys.
影响因子:
--
作者:
B. E. Merrill;Y. Peet
通讯作者:
Y. Peet
影响因子:
4.1
作者:
Bradley Froehle;P. Persson
通讯作者:
P. Persson
影响因子:
3.7
作者:
Timothy H. Lee;M. Fisher;W. Schwarz
通讯作者:
W. Schwarz