Computer-aided block-structuring through the use of optimization and expert system techniques

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

One of the most labor-intensive aspects of performing computational simulations of the flow over aerospace configurations is the design and generation of appropriate computational grids, especially of the block-structured variety. A major difficulty with current systems is the need to design a suitable blocking plan, or flowfield decomposition, for a given configuration. Presented herein is a new approach for the automatic design of suitable blocking plans which is based upon the use of a rule-based expert system. A domain decomposition knowledge base is used by the expert system to analyze a given configuration, set up an appropriate baseline blocking plan, and perform a nonlinear integer optimization to “fine-tune” the blocking plan and the resulting computational grid. It is shown that this new approach efficiently generates near-optimal block-structured grids over a variety of multi-body configurations.

Original languageEnglish (US)
Title of host publication10th Computational Fluid Dynamics Conference, 1991
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
StatePublished - 1991
Externally publishedYes
Event10th Computational Fluid Dynamics Conference, 1991 - Honolulu, United States
Duration: Jun 24 1991Jun 26 1991

Other

Other10th Computational Fluid Dynamics Conference, 1991
CountryUnited States
CityHonolulu
Period6/24/916/26/91

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ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering

Cite this

Dannenhoffer, J. F. (1991). Computer-aided block-structuring through the use of optimization and expert system techniques. In 10th Computational Fluid Dynamics Conference, 1991 [AIAA-91-1585-CP] American Institute of Aeronautics and Astronautics Inc, AIAA.