A multi-dimensional arbitrary Lagrangian-Eulerian method for dynamic fluid-structure interaction
This paper describes an arbitrary Lagrangian-Eulerian method for analyzing fluid-structure interactions in fast reactor containment with complex internal structures. In the analysis the fluid transient can be calculated either implicitly or explicitly, using a finite-difference mesh with vertices that may be moved with the fluid (Lagrangian), held fixed (Eulerian), or moved in any other prescribed manner (hybrid Lagrangian-Eulerian). The structural response is computed explicitly by two nonlinear, elastic-plastic finite element modules formulated in corotational coordinates. Interaction between fluid and structure is accounted for by enforcing the interface boundary conditions. The method has convincing advantages in treating complicated phenomena such as flow through perforated structures, large material distortions, flow around corners and irregularities, and highly contorted fluid boundaries. Several sample problems are given to illustrate the effectiveness of this arbitrary Lagrangian-Eulerian method.
- Research Organization:
- Argonne National Laboratory, Argonne, IL
- OSTI ID:
- 5658894
- Report Number(s):
- CONF-820601-
- Journal Information:
- Am. Soc. Mech. Eng., Pressure Vessels Piping Div., (Tech. Rep.) PVP; (United States), Journal Name: Am. Soc. Mech. Eng., Pressure Vessels Piping Div., (Tech. Rep.) PVP; (United States) Vol. PVP-VOL. 64; ISSN AMPPD
- Country of Publication:
- United States
- Language:
- English
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420400 -- Engineering-- Heat Transfer & Fluid Flow
BOUNDARY CONDITIONS
CONTAINMENT
DYNAMICS
ELASTICITY
EPITHERMAL REACTORS
FAST REACTORS
FINITE DIFFERENCE METHOD
FLUID-STRUCTURE INTERACTIONS
FUNCTIONS
ITERATIVE METHODS
LAGRANGIAN FUNCTION
MECHANICAL PROPERTIES
MECHANICS
MESH GENERATION
NUMERICAL SOLUTION
PERFORATION
PLASTICITY
REACTORS
TENSILE PROPERTIES
TRANSIENTS