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{Blackburn:2008:10.1017/S002211200800171,
author = {Blackburn, HM and Sherwin, SJ and Barkley, D},
doi = {10.1017/S002211200800171},
journal = {Journal of Fluid Mechanics},
pages = {267--277},
title = {Convective instability and transient growth in steady and pulsatile stenotic flows},
url = {http://dx.doi.org/10.1017/S002211200800171},
volume = {607},
year = {2008}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - We show that suitable initial disturbances to steady or long-period pulsatile flows in a straight tube with a 75%-occlusion axisymmetric stenosis can produce very large transient energy growths. The global optimal disturbances to an initially axisymmetric state found by linear analyses are three-dimensional wave packets that produce localized sinuous convective instability in extended shear layers. In pulsatile flow, initial conditions that trigger the largest disturbances are either initiated at, or advect to, the separating shear layer at the stenosis in phase with peak systolic flow.
AU - Blackburn,HM
AU - Sherwin,SJ
AU - Barkley,D
DO - 10.1017/S002211200800171
EP - 277
PY - 2008///
SN - 0022-1120
SP - 267
TI - Convective instability and transient growth in steady and pulsatile stenotic flows
T2 - Journal of Fluid Mechanics
UR - http://dx.doi.org/10.1017/S002211200800171
UR - http://www2.imperial.ac.uk/ssherw/spectralhp/papers/JFM-BlShBa-08.pdf
VL - 607
ER -