An efficient multiblock method for aerodynamic analysis and design on distributed memory systems

J. Reuther, J. J. Alonso, J. C. Vassberg, A. Jameson, L. Martinelli

Research output: Contribution to conferencePaper

3 Scopus citations

Abstract

The work presented in this paper describes the application of a multiblock gridding strategy to the solution of aerodynamic design optimization problems involving complex configurations. The design process is parallelized using the MPI (Message Passing Interface) Standard such that it can be efficiently run on a variety of distributed memory systems ranging from traditional parallel computers to networks of workstations. Substantial improvements to the parallel performance of the baseline method are presented, with particular attention to their impact on the scalability of the program as a function of the mesh size. Drag minimization calculations at a fixed coefficient of lift are presented for a business jet configuration that includes the wing, body, pylon, aft-mounted nacelle, and vertical and horizontal tails. An aerodynamic design optimization is performed with both the Euler and Reynolds Averaged Navier-Stokes (RANS) equations governing the flow solution and the results are compared. These sample calculations establish the feasibility of efficient aerodynamic optimization of complete aircraft configurations using the RANS equations as the flow model. There still exists, however, the need for detailed studies of the importance of a true viscous adjoint method which holds the promise of tackling the minimization of not only the wave and induced components of drag, but also the viscous drag.

Original languageEnglish (US)
Pages419-445
Number of pages27
StatePublished - Jan 1 1997
Event13th Computational Fluid Dynamics Conference, 1997 - Snowmass Village, United States
Duration: Jun 29 1997Jul 2 1997

Other

Other13th Computational Fluid Dynamics Conference, 1997
CountryUnited States
CitySnowmass Village
Period6/29/977/2/97

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Reuther, J., Alonso, J. J., Vassberg, J. C., Jameson, A., & Martinelli, L. (1997). An efficient multiblock method for aerodynamic analysis and design on distributed memory systems. 419-445. Paper presented at 13th Computational Fluid Dynamics Conference, 1997, Snowmass Village, United States.