Parallel computation for natural convection

✍ Scribed by Wang, P.; Ferraro, R. D.

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 183 KB
• Volume: 9
• Category: Article
• ISSN: 1040-3108
• DOI: 10.1002/(sici)1096-9128(199710)9:10<975::aid-cpe281>3.0.co;2-n

✦ Synopsis

Parallel computation for two-dimensional convective flows in cavities with adiabatic horizontal boundaries and driven by differential heating of the two vertical end walls are investigated using the Intel Paragon, Intel Touchstone Delta, Cray T3D and IBM SP2. The numerical scheme, including a parallel multigrid solver, and domain decomposition techniques for parallel computing are discussed in detail. Performance comparisons are made for the different parallel systems, and numerical results using various numbers of processors are discussed. ©1997 by John Wiley & Sons, Ltd. NOMENCLATURE h height of cavity l length of cavity g acceleration due to gravity L = l/h aspect ratio of cavity R Rayleigh number T non-dimensional temperature x, z non-dimensional co-ordinates u, w non-dimensional velocity components N P ES number of processors Greek symbols β coefficient of thermal expansion ψ non-dimensional stream function κ thermal diffusivity ν kinematic viscosity σ Prandtl number ω non-dimensional vorticity function