.png){kind=icon}
返回
Conservative immersed-type algorithm with a Cartesian grid-based smoothed finite element method for the 2D fluid-structure interaction
.png){kind=icon}
PRE
AI
DOI：10.1016/j.cma.2024.117275.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The Cartesian grid, which is highly popular in Computational Fluid Dynamics (CFD), has the characteristics of high mesh quality and easy generation. However, due to the limit of shape functions, the Cartesian grid with hanging nodes (CGHN) was rarely used in finite element method based CFD algorithm. Based on the framework of the immersed boundary method, a smoothed finite element method based on CGHN is developed for the fluid-structure interaction problems in incompressible fluids and large deformed structures. The gradient smoothing technique simplifies the processing of the hanging nodes and ensures the mesh density of the Cartesian elements. When solving the nonlinear N-S equations, the characteristic-based split format is combined with the stabilized pressure gradient projection to overcome the convection and pressure oscillations in the Galerkin-like method. A heterogeneous mesh mapping technology is developed for the data transfer between fluid and solid domains. An efficient, accurate and generalized mass conservation algorithm is developed to solve the pressure oscillations in data transfer between fluids and solids. The results of numerical examples show that the presented method possesses high accuracy and robustness.
Keyword:
Cartesian grid with hanging nodes
Smoothed finite element method
Computational fluid dynamics
Fluid-structure interaction
Gradient smoothing technique
期刊
IF:
7.3
论文数:
1.3W
被引数:
5.6W
机构
引用论文
7-Eleven Japan and Toyota will launch joint convenience store project in autumn 20197-Eleven日本和丰田将在2019秋季推出联合便利店项目
PREAI
分享收藏A smoothed finite element method for octree-based polyhedral meshes with large number of hanging nodes and irregular elements具有大量悬挂节点和不规则单元的基于八叉树的多面体网格的光滑有限元方法
PREAI
分享收藏Specialization of tuna: A numerical study on the function of caudal keels.png)
PHYSICS OF FLUIDS
PHYSICS OF FLUIDSIF4.3
PREAI
分享收藏N-Side Cell-Based Smoothed Finite Element Method for Incompressible Flow with Heat Transfer Problems
PREAI
分享收藏An efficient selective cell-based smoothed finite element approach to fluid-structure interactionPHYSICS OF FLUIDS
PHYSICS OF FLUIDSIF4.3
PREAI
分享收藏
查看更多内容