Imperial College London
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ProfessorSpencerSherwin

Faculty of Engineering, Department of Aeronautics

Head of the Department of Aeronautics
 
 
 
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Contact

 

+44 (0)20 7594 5052s.sherwin Website

 
 
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Location

 

318City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Serson:2017:10.1016/j.compfluid.2017.01.013,
author = {Serson, D and Meneghini, JR and Sherwin, SJ},
doi = {10.1016/j.compfluid.2017.01.013},
journal = {Computers and Fluids},
pages = {117--124},
title = {Direct numerical simulations of the flow around wings with spanwise waviness at a very low Reynolds number},
url = {http://dx.doi.org/10.1016/j.compfluid.2017.01.013},
volume = {146},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Inspired by the pectoral flippers of the humpback whale, the use of spanwise waviness in the leading edge has been considered in the literature as a possible way of improving the aerodynamic performance of wings. In this paper, we present an investigation based on direct numerical simulations of the flow around infinite wavy wings with a NACA0012 profile, at a Reynolds number Re=1000Re=1000. The simulations were carried out using the Spectral/hp Element Method, with a coordinate system transformation employed to treat the waviness of the wing. Several combinations of wavelength and amplitude were considered, showing that for this value of Re the waviness leads to a reduction in the lift-to-drag ratio (L/D), associated with a suppression of the fluctuating lift coefficient. These changes are associated with a regime where the flow remains attached behind the peaks of the leading edge while there are distinct regions of flow separation behind the troughs, and a physical mechanism explaining this behaviour is proposed.
AU  - Serson,D
AU  - Meneghini,JR
AU  - Sherwin,SJ
DO  - 10.1016/j.compfluid.2017.01.013
EP  - 124
PY  - 2017///
SN  - 0045-7930
SP  - 117
TI  - Direct numerical simulations of the flow around wings with spanwise waviness at a very low Reynolds number
T2  - Computers and Fluids
UR  - http://dx.doi.org/10.1016/j.compfluid.2017.01.013
UR  - https://www.sciencedirect.com/science/article/pii/S0045793017300269
UR  - http://hdl.handle.net/10044/1/44058
VL  - 146
ER  -
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