Parallelization of the CFD Code of a CFD-NWP Coupled System for the Simulation of Atmospheric Flows Over Complex Terrain
Fernando Castro (CEsA - Centro de Estudos em Engenharia Eólica e Escoamentos Atmosféricos)Castro Santos (CEsA - Centro de Estudos em Engenharia Eólica e Escoamentos Atmosféricos)
José Palma (CEsA - Centro de Estudos em Engenharia Eólica e Escoamentos Atmosféricos)
Abstract:
The sequential simulation of atmospheric flows over complex terrain
using Computational Fluid Dynamics tools (CFD) leads normally to very
large time-consuming runs. With the present day processors
only the power available using parallel computers is enough to produce
a true prediction using CFD tools, i.e. running the code faster than
the evolution of the real weather. In the present work, the
parallelisation strategy used to produce the parallel version of the
VENTOS CFD code is shown. A sample of the results
included in the present abstract is enough to show the code behaviour as
a function of the number of sub-domains, both number and direction along
which the domain splitting occurs, and their implications on both the
iteration number and code parallel efficiency.
Keywords:
Parallel and Distributed Computing
