ELL for 3D FSI problems with thin flexible structures based on the continuum-based shell element

被引：5
|
作者：
Han, Dong [1 ]
Liu, G. R. [1 ]
Abdallah, Shaaban [1 ]
机构：
[1] Univ Cincinnati, Dept Aerosp Engn & Engn Mech, Cincinnati, OH 45219 USA
来源：
JOURNAL OF FLUIDS AND STRUCTURES | 2021年 / 103卷
关键词：
FSI problem; 3D ELL; Thin structure; CB shell element; FEM; FLUID-STRUCTURE INTERACTION; IMMERSED BOUNDARY METHOD; INCOMPRESSIBLE FLOWS; SIMULATION;
D O I：
10.1016/j.jfluidstructs.2021.103281
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper extends the Eulerian-Lagrangian-Lagrangian (ELL) method to solve the three-dimensional (3D) fluid-structure interaction (FSI) problems with flexible thin solids. The continuum-based (CB) shell element is adopted to model the flexible, thin-shell structure that undergoes large deformation. Several benchmarking problems, including a 3D cylinder-beam problem, vertical beam bending, and flapping flag, are solved to validate the present ELL approach incorporates the CB shell model. The results show that the ELL approach in this work has good agreement with references. A flapping butterfly with flexible wings is calculated to show the capability of the ELL to analyze more complex FSI problems in biomechanics. (C) 2021 Elsevier Ltd. All rights reserved.
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页数：19
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