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{Jordi:2015:10.1063/1.4932107,
author = {Jordi, BE and Cotter, CJ and Sherwin, SJ},
doi = {10.1063/1.4932107},
journal = {Physics of Fluids},
title = {An adaptive selective frequency damping method},
url = {http://dx.doi.org/10.1063/1.4932107},
volume = {27},
year = {2015}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - The selective frequency damping (SFD) method is an alternative to classical Newton’smethod to obtain unstable steady-state solutions of dynamical systems. However, thismethod has two main limitations: it does not converge for arbitrary control parameters,and when it does converge, the time necessary to reach a steady-state solution may bevery long. In this paper, we present an adaptive algorithm to address these two issues.We show that by evaluating the dominant eigenvalue of a “partially converged” steadyflow, we can select a control coefficient and a filter width that ensure an optimumconvergence of the SFD method. We apply this adaptive method to several classicaltest cases of computational fluid dynamics and we show that a steady-state solution canbe obtained with a very limited (or without any) a priori knowledge of the flow stabilityproperties
AU - Jordi,BE
AU - Cotter,CJ
AU - Sherwin,SJ
DO - 10.1063/1.4932107
PY - 2015///
SN - 1089-7666
TI - An adaptive selective frequency damping method
T2 - Physics of Fluids
UR - http://dx.doi.org/10.1063/1.4932107
UR - http://hdl.handle.net/10044/1/27024
VL - 27
ER -