Optimisation of Transonic Circulation Control Devices

Forster, Matthew ORCID: 0000-0001-6127-3430, Biava, Massimo and Steijl, Rene
(2015) Optimisation of Transonic Circulation Control Devices. In: 6th European Conference for AeroSpace Sciences, 2015-6 - 2015-6, Krakow, Poland.

[img] Text
Forster_EUCASS2015_paper.pdf - Unspecified

Download (4MB)


Gradient based optimisation of a Coanda surface for a transonic, supercritical circulation control aerofoil is presented. Design variable updates are driven by a Sequential Least Squares Quadratic Programming (SLSQP) algorithm, using gradients provided by the solution of the Adjoint equations in discrete formulation. Surface sensitivities of the lift coefficient relative to local variations on the Coanda shape are shown, which indicate that the effects due to under-expansion of the jet have a significant influence on the circulation control efficiency. It is also shown that a 16\% improvement in the augmented lift coefficient compared with a simple circular shape can be achieved with minor alterations of an initial quasi-elliptical design. A gain in lift coefficient of $C_l = 0.09$ was achieved relative to this initial shape.

Item Type: Conference or Workshop Item (Paper)
Depositing User: Symplectic Admin
Date Deposited: 12 Jan 2016 09:58
Last Modified: 17 Dec 2022 01:18
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/2046061