TY - GEN
T1 - Optimization of aircraft wake alleviation schemes through an evolution strategy
AU - Chatelain, Philippe
AU - Gazzola, Mattia
AU - Kern, Stefan
AU - Koumoutsakos, Petros
PY - 2011
Y1 - 2011
N2 - We investigate schemes to accelerate the decay of aircraft trailing vortices. These structures are susceptible to several instabilities that lead to their eventual destruction. We employ an Evolution Strategy to design a lift distribution and a lift perturbation scheme that minimize the wake hazard as proposed in [6]. The performance of a scheme is measured as the reduction of the mean rolling moment that would be induced on a following aircraft; it is computed by means of a Direct Numerical Simulation using a parallel vortex particle code. We find a configuration and a perturbation scheme characterized by an intermediate wavelength λ ∼ 4.64, necessary to trigger medium wavelength instabilities between tail and flap vortices and subsequently amplify long wavelength modes.
AB - We investigate schemes to accelerate the decay of aircraft trailing vortices. These structures are susceptible to several instabilities that lead to their eventual destruction. We employ an Evolution Strategy to design a lift distribution and a lift perturbation scheme that minimize the wake hazard as proposed in [6]. The performance of a scheme is measured as the reduction of the mean rolling moment that would be induced on a following aircraft; it is computed by means of a Direct Numerical Simulation using a parallel vortex particle code. We find a configuration and a perturbation scheme characterized by an intermediate wavelength λ ∼ 4.64, necessary to trigger medium wavelength instabilities between tail and flap vortices and subsequently amplify long wavelength modes.
KW - Large Scale Simulations in CS&E
KW - Numerical Algorithms for CS&E
KW - Parallel and Distributed Computing
UR - http://www.scopus.com/inward/record.url?scp=79952602676&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79952602676&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-19328-6_21
DO - 10.1007/978-3-642-19328-6_21
M3 - Conference contribution
AN - SCOPUS:79952602676
SN - 9783642193279
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 210
EP - 221
BT - High Performance Computing for Computational Science, VECPAR 2010 - 9th International Conference, Revised Selected Papers
T2 - 9th International Conference on High Performance Computing for Computational Science, VECPAR 2010
Y2 - 22 June 2010 through 25 June 2010
ER -