Abstract
Progress toward the development and validation of a fast, accurate, and cost-effective aeroelastic method for several advanced parallel computing platforms is presented. The ENSAERO code, developed at NASA Ames Research Center, was selected for this research effort. To improve the performance, the capabilities of the constituent modules have been enhanced. The relative merits of four parallel computing environments are investigated: SGI workstation cluster, SGI Power Challenge machine, SGI Power Challenge cluster, and the IBM SP2 system. To assess the computational performance of the enhanced ENSAERO code, the results of unsteady Navier-Stokes simulations of the transonic flow over a fully flexible aeroelastic arrow-wing body configuration are reported. In addition, to ensure that the modified version of ENSAERO performs to specifications and to evaluate the benefits of the enhancements, unsteady Euler/Navier-Stokes calculations for an AGARD standard aeroelastic configuration are done. To evaluate the level of accuracy of the enhanced system, the ENSAERO results are compared with established computational solutions and experimental data.
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