Computational challenges in high angle of attack flow prediction

Russell M. Cummings, James R. Forsythe, Scott A. Morton, Kyle Squires

Research output: Contribution to journalArticle

82 Scopus citations

Abstract

Aircraft aerodynamics have been predicted using computational fluid dynamics for a number of years. While viscous flow computations for cruise conditions have become commonplace, the non-linear effects that take place at high angles of attack are much more difficult to predict. A variety of difficulties arise when performing these computations, including challenges in properly modeling turbulence and transition for vortical and massively separated flows, the need to use appropriate numerical algorithms if flow asymmetry is possible, and the difficulties in creating grids that allow for accurate simulation of the flowfield. These issues are addressed and recommendations are made for further improvements in high angle of attack flow prediction. Current predictive capabilities for high angle of attack flows are reviewed, and solutions based on hybrid turbulence models are presented.

Original languageEnglish (US)
Pages (from-to)369-384
Number of pages16
JournalProgress in Aerospace Sciences
Volume39
Issue number5
DOIs
Publication statusPublished - Jul 2003

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ASJC Scopus subject areas

  • Aerospace Engineering

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