Unsteady lift prediction with a higher-order potential flow method

Julia A. Cole, Mark D. Maughmer, Goetz Bramesfeld, Michael Melville, Michael Kinzel

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


An unsteady formulation of the Kutta-Joukowski theorem has been used with a higher-order potential flow method for the prediction of three-dimensional unsteady lift. This study describes the implementation and verification of the approach in detail sufficient for reproduction by future developers. Verification was conducted using the classical responses to a two-dimensional airfoil entering a sharp-edged gust and a sinusoidal gust with errors of less than 1% for both. The method was then compared with the three-dimensional unsteady lift response of a wing as modeled in two unsteady vortex-lattice methods. Results showed agreement in peak lift coefficient prediction to within 1% and 7%, respectively, and mean agreement within 0.25% for the full response.

Original languageEnglish (US)
Article number60
Issue number5
StatePublished - May 1 2020

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering


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