Finite element formulation for fluid-structure interaction in three-dimensional space
Conference
·
OSTI ID:5886623
A development is presented for a three-dimension hexahedral hydrodynamic finite-element. Using trilinear shape functions and assuming a constant pressure field in each element, simple relations were obtained for internal nodal forces. Because the formulation was based upon a rate approach it was applicable to problems involving large displacements. This element was incorporated into an existing plate-shell finite element code. Diagonal mass matrices were used and the resulting discrete equations of motion were solved using explicit temporal integrator. Results for several problems were presented which compare numerical predictions to closed form analytical solutions. In addition, the fluid-structure interaction problem of a fluid-filled, cylindrical vessel containing internal cylinders was studied. The internal cylinders were cantilever supported from the top cover of the vessel and were periodically located circumferentially at a fixed radius. A pressurized cylindrical cavity located at the bottom of the vessel at its centerline provided the loading.
- Research Organization:
- Argonne National Lab., IL (USA)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5886623
- Report Number(s):
- CONF-790615--26
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
ALKALI METALS
CONTAINERS
DATA
DATA FORMS
DEFORMATION
ELEMENTS
FINITE ELEMENT METHOD
FLUID FLOW
FLUID MECHANICS
FLUIDS
GRAPHS
HYDRODYNAMICS
INFORMATION
MECHANICS
METALS
NUMERICAL DATA
NUMERICAL SOLUTION
SODIUM
STRESS ANALYSIS
THEORETICAL DATA
VISCOUS FLOW
420400* -- Engineering-- Heat Transfer & Fluid Flow
ALKALI METALS
CONTAINERS
DATA
DATA FORMS
DEFORMATION
ELEMENTS
FINITE ELEMENT METHOD
FLUID FLOW
FLUID MECHANICS
FLUIDS
GRAPHS
HYDRODYNAMICS
INFORMATION
MECHANICS
METALS
NUMERICAL DATA
NUMERICAL SOLUTION
SODIUM
STRESS ANALYSIS
THEORETICAL DATA
VISCOUS FLOW