Theory and application of a finite element method for arbitrary Lagrangian-Eulerian fluids and structures

A coupled model for the analysis of three-dimensional structures interacting with a three-dimensional axisymmetric fluid has been developed. The model is intended for the study of the role of above core structures in core disruptive accidents. Because the fluid model must be capable of interacting w...

Full description

Saved in:
Bibliographic Details
Published in:Nuclear engineering and design 1982-03, Vol.68 (2), p.129-146
Main Authors: Kennedy, J.M., Belytschko, T.B.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A coupled model for the analysis of three-dimensional structures interacting with a three-dimensional axisymmetric fluid has been developed. The model is intended for the study of the role of above core structures in core disruptive accidents. Because the fluid model must be capable of interacting with the structure while it experiences large deformations, an Arbitrary Lagrangian-Eulerian (ALE) mesh description, which enables the motion of the nodes to be programmed by the user, was chosen. Both the structural and the fluid model are programmed in a finite element format for the sake of versatility. Example calculations for a two-dimensional bubble problem, which served primarily to verify the computational algorithm for the fluid are presented. For the purpose of examining the capability of the method and simulating the response of above core structures in a CDA, numerous simulations were made of some SRI scale model tests. The results show reasonable agreement with the experiment.
ISSN:0029-5493
1872-759X
DOI:10.1016/0029-5493(82)90026-7