Aero-Structural Design Optimization of Adaptive Shock Control Bumps
File(s)Jinks (2016) - aeroStructuralAdaptiveSCB.pdf (2.27 MB)
Submitted version
Author(s)
Jinks, E
Santer, M
bruce, P
Type
Conference Paper
Abstract
Shock control bumps (SCB) are a transonic flow control device that aim to reduce the
overall drag due to a normal shock on a typical passenger jet at cruise. The concept of adaptive
SCB which can be deployed for best use are investigated through an aero-structural
design tool that produces optimal geometries. The optimizer uses a surface based performance
metric to highlight the importance of the flow quality around the SCB as well
as including a structural element that is required to provide the necessary flexibility to
deform. The performance metric produces the target pressure distribution and successfully
smears the shock. It is found that the structural constraint does not inhibit bump
height and global airfoil performance is not significantly a↵ected, L/D varies < 0.6%. The
aerodynamic pressure loading can be utilised to produce a new family of SCB geometries
that are unachievable with mechanical actuation alone. The study shows that adaptive
SCB that exploit the naturally occurring pressure field around an airfoil in a passive way
are a feasible technology to mitigate the poor o↵-design performance of static SCB.
overall drag due to a normal shock on a typical passenger jet at cruise. The concept of adaptive
SCB which can be deployed for best use are investigated through an aero-structural
design tool that produces optimal geometries. The optimizer uses a surface based performance
metric to highlight the importance of the flow quality around the SCB as well
as including a structural element that is required to provide the necessary flexibility to
deform. The performance metric produces the target pressure distribution and successfully
smears the shock. It is found that the structural constraint does not inhibit bump
height and global airfoil performance is not significantly a↵ected, L/D varies < 0.6%. The
aerodynamic pressure loading can be utilised to produce a new family of SCB geometries
that are unachievable with mechanical actuation alone. The study shows that adaptive
SCB that exploit the naturally occurring pressure field around an airfoil in a passive way
are a feasible technology to mitigate the poor o↵-design performance of static SCB.
Date Issued
2016-01-31
Date Acceptance
2016-01-08
Citation
54th AIAA Aerospace Sciences Meeting, AIAA SciTech, 2016
ISBN
978-1-62410-393-3
Publisher
American Institute of Aeronautics and Astronautics
Journal / Book Title
54th AIAA Aerospace Sciences Meeting, AIAA SciTech
Copyright Statement
© AIAA. Aero-Structural Design Optimization of Adaptive Shock Control Bumps
Edward R. Jinks, Paul J. Bruce, and Matthew J. Santer
54th AIAA Aerospace Sciences Meeting. San Diego, California, USA.
Edward R. Jinks, Paul J. Bruce, and Matthew J. Santer
54th AIAA Aerospace Sciences Meeting. San Diego, California, USA.
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Grant Number
EP/K503381/1
Source
54th AIAA Aerospace Sciences Meeting
Publication Status
Published
Start Date
2016-01-04
Finish Date
2016-01-08
Coverage Spatial
San Diego, CA USA