Imperial College London

ProfessorSpencerSherwin

Faculty of EngineeringDepartment of Aeronautics

Professor of Computational Fluid Mechanics
 
 
 
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Contact

 

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

 
 
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Location

 

313BCity and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{De:2018:10.1103/PhysRevFluids.3.024101,
author = {De, Grazia D and Moxey, D and Sherwin, SJ and Kravtsova, MA and Ruban, AI},
doi = {10.1103/PhysRevFluids.3.024101},
journal = {Physical Review Fluids},
title = {Direct numerical simulation of a compressible boundary-layer flow past an isolated three-dimensional hump in a high-speed subsonic regime},
url = {http://dx.doi.org/10.1103/PhysRevFluids.3.024101},
volume = {3},
year = {2018}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - In this paper we study the boundary-layer separation produced in a high-speed subsonic boundary layer by a small wall roughness. Specifically, we present a direct numerical simulation (DNS) of a two-dimensional boundary-layer flow over a flat plate encountering a three-dimensional Gaussian-shaped hump. This work was motivated by the lack of DNS data of boundary-layer flows past roughness elements in a similar regime which is typical of civil aviation. The Mach and Reynolds numbers are chosen to be relevant for aeronautical applications when considering small imperfections at the leading edge of wings. We analyze different heights of the hump: The smaller heights result in a weakly nonlinear regime, while the larger result in a fully nonlinear regime with an increasing laminar separation bubble arising downstream of the roughness element and the formation of a pair of streamwise counterrotating vortices which appear to support themselves.
AU - De,Grazia D
AU - Moxey,D
AU - Sherwin,SJ
AU - Kravtsova,MA
AU - Ruban,AI
DO - 10.1103/PhysRevFluids.3.024101
PY - 2018///
SN - 2469-990X
TI - Direct numerical simulation of a compressible boundary-layer flow past an isolated three-dimensional hump in a high-speed subsonic regime
T2 - Physical Review Fluids
UR - http://dx.doi.org/10.1103/PhysRevFluids.3.024101
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000424509000002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/58026
VL - 3
ER -