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

@inproceedings{Barkley:2008,
author = {Barkley, D and Blackburn, HM and Sherwin, SJ},
pages = {1435--1458},
title = {Direct optimal growth analysis for timesteppers},
year = {2008}
}

RIS format (EndNote, RefMan)

TY  - CPAPER
AB - Methods are described for transient growth analysis of flows with arbitrary geometric complexity, where in particular the flow is not required to vary slowly in the streamwise direction. Emphasis is on capturing the global effects arising from localized convective stability in streamwise-varying flows. The methods employ the 'timestepper's approach' in which a nonlinear Navier-Stokes code is modified to provide evolution operators for both the forward and adjoint linearized equations. First, the underlying mathematical treatment in primitive flow variables is presented. Then, details are given for the inner level code modifications and outer level eigenvalue and SVD algorithms in the timestepper's approach. Finally, some examples are shown and guidance provided on practical aspects of this type of large-scale stability analysis. Copyright (C) 2008 John Wiley & Sons, Ltd.
AU - Barkley,D
AU - Blackburn,HM
AU - Sherwin,SJ
EP - 1458
PY - 2008///
SP - 1435
TI - Direct optimal growth analysis for timesteppers
ER -