Imperial College London
Portrait Picture

ProfessorMatthewSanter

Faculty of Engineering, Department of Aeronautics

Professor of Aerospace Structures
 
 
 
//

Contact

 

+44 (0)20 7594 5117m.santer

 
 
//

Location

 

335City and Guilds BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Gramola:2018:10.1016/j.jfluidstructs.2018.05.005,
author = {Gramola, M and Bruce, P and Santer, M},
doi = {10.1016/j.jfluidstructs.2018.05.005},
journal = {Journal of Fluids and Structures},
pages = {361--377},
title = {Experimental FSI study of adaptive shock control bumps},
url = {http://dx.doi.org/10.1016/j.jfluidstructs.2018.05.005},
volume = {81},
year = {2018}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The shock stabilisation and wave drag reduction potential of a two-dimensional adaptive shock control bump has been studied in the Imperial College supersonic wind tunnel. The bump was modelled as a flexible aluminium alloy plate deformed through spanwise actuation, and several bump heights were tested beneath a Mach 1.4 transonic shock wave. Schlieren images and static pressure readings along the flexible plate allowed the study of the λλ-shock structure generated by the bifurcation of the normal shock for a range of shock positions. All bumps tested were found to increase shock stability, but wave drag reduction was only observed for shocks close to the leading edge of the flexible plate. Positive deformations of the flexible plate for downstream shocks are believed to reduce supersonic flow reacceleration, and hence the strength of the rear leg of the λλ-shock and wave drag, in comparison to a solid bump with the same shape. The position of the rear leg of the λλ-shock was found to exhibit a bistable behaviour, and this is hypothesised to be caused by a complex coupling of aerodynamic and structural instabilities.
AU  - Gramola,M
AU  - Bruce,P
AU  - Santer,M
DO  - 10.1016/j.jfluidstructs.2018.05.005
EP  - 377
PY  - 2018///
SN  - 0889-9746
SP  - 361
TI  - Experimental FSI study of adaptive shock control bumps
T2  - Journal of Fluids and Structures
UR  - http://dx.doi.org/10.1016/j.jfluidstructs.2018.05.005
UR  - http://hdl.handle.net/10044/1/59835
VL  - 81
ER  -
Download