Multi-dimensional arbitrary Lagrangian-Eulerian method for dynamic fluid-structure interaction. [LMFBR]

Conference · Thu Dec 31 23:00:00 EST 1981

OSTI ID:6138230

Wang, C Y; Zeuch, W R

This paper describes an arbitrary Lagrangian-Eulerian method for analyzing fluid-structure interactions in fast-reactor containment with complex internal structures. 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 Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6138230
• Report Number(s): CONF-820601-32; ON: DE83010577
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210500 -- Power Reactors
Breeding
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
BREEDER REACTORS
CONTAINERS
DIFFERENTIAL EQUATIONS
DYNAMIC LOADS
EPITHERMAL REACTORS
EQUATIONS
FAST REACTORS
FBR TYPE REACTORS
FLUID MECHANICS
FLUID-STRUCTURE INTERACTIONS
HYDRAULICS
HYDRODYNAMICS
LAGRANGE EQUATIONS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MATHEMATICAL MODELS
MECHANICS
PARTIAL DIFFERENTIAL EQUATIONS
REACTOR ACCIDENTS
REACTOR SAFETY
REACTOR VESSELS
REACTORS
SAFETY