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NASA NTRS · Conference Paper

Prediction of stall and post-stall behavior of airfoils at low and high Reynolds numbers

Published 2019-06-26 From Legacy CDMS 3 authors
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Attribution

This is the abstract and citation. Full text lives at NASA NTRS — we link out rather than host. All credit to the authors and Legacy CDMS.

Abstract

Verbatim from NASA NTRS. Not paraphrased, not summarized.

An interactive boundary-layer method, together with the e(super n)-approach to the calculation of transition, has been used to predict the stall and post-stall behavior of airfoils at low and high Reynolds numbers. The turbulence model is based on the Cebeci-Smith algebraic eddy-viscosity formulation with improvements for strong pressure gradient effects and transitional flows at low Reynolds numbers. Comparison of calculated results for incompressible flows indicate good agreement with experiment for a wide range of Reynolds numbers. Preliminary calculations for low Mach number flows with this interactive method with compressibility corrections to the panel method indicate that, at a Mach number of 0.3, the compressibility effect on (C sub Q)max is not negligible.

Authors

  • Cebeci, T. NASA Ames Research Center
  • Roknaldin, F. California State Univ.
  • Carr, L. W. NASA Ames Research Center

Citation: Cebeci, T., Roknaldin, F., Carr, L. W. (2019). Prediction of stall and post-stall behavior of airfoils at low and high Reynolds numbers. Legacy CDMS. NASA NTRS ID 19930063273. https://ntrs.nasa.gov/citations/19930063273 ↗