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- Title
A study of the unsteady aerodynamics of a wing at high angles of attack using decambering to model separated flow.
- Authors
Samuel, B Antony; Mukherjee, Rinku
- Abstract
An Unsteady Vortex Lattice Method is developed and validated. It is coupled with a decambering methodology to account for viscous effects on the aerodynamic coefficients. Two additional methodologies to select a unique solution when multiple solutions arise have been proposed. The transient nature of the aerodynamic loads of a suddenly moving wing at different angles of attack is examined. Sudden jumps are observed in the CL(t)<inline-graphic></inline-graphic> at post-stall angles of attack. The jumps are followed by the presence of asymmetric solutions, which then decline with time and a change in the solution state. Higher angles of attack see an increasing number of jumps.
- Subjects
VORTEX lattice method; AERODYNAMICS; ANGLE of attack (Aerodynamics); BOUNDARY value problems; COEFFICIENTS (Statistics)
- Publication
Sādhanā: Academy Proceedings in Engineering Sciences, 2018, Vol 43, Issue 8, p1
- ISSN
0256-2499
- Publication type
Article
- DOI
10.1007/s12046-018-0894-y