Parallel Computations of Natural Convection Flow in a Tall Cavity Using an Explicit Finite Element Method
The Galerkin Finite Element Method was used to predict a natural convection flow in an enclosed cavity. The problem considered was a differentially heated, tall (8:1), rectangular cavity with a Rayleigh number of 3.4 x 10{sup 5} and Prandtl number of 0.71. The incompressible Navier-Stokes equations were solved using a Boussinesq approximation for the buoyancy force. The algorithm was developed for efficient use on massively parallel computer systems. Emphasis was on time-accurate simulations. It was found that the average temperature and velocity values can be captured with a relatively coarse grid, while the oscillation amplitude and period appear to be grid sensitive and require a refined computation.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE Office of Defense Programs (DP) (US)
- DOE Contract Number:
- W-7405-Eng-48
- OSTI ID:
- 791136
- Report Number(s):
- UCRL-JC-141027; TRN: US200304%%506
- Resource Relation:
- Journal Volume: 40; Journal Issue: 8; Conference: 1st MIT Conference on Computational Fluid and Solid Mechanics, Cambridge, MA (US), 06/12/2001--06/14/2001; Other Information: PBD: 17 Oct 2000
- Country of Publication:
- United States
- Language:
- English
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journal | June 1984 |
Computational predictability of time-dependent natural convection flows in enclosures (including a benchmark solution)
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journal | January 2002 |
Recent developments in large-scale finite element lagrangian hydrocode technology
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journal | September 1982 |
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