Imperial College London

ProfessorSergeiChernyshenko

Faculty of EngineeringDepartment of Aeronautics

Chair in Aerodynamics
 
 
 
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Contact

 

+44 (0)20 7594 5548s.chernyshenko Website

 
 
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Location

 

211aCity and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@unpublished{Chernyshenko:2017,
author = {Chernyshenko, S},
title = {Relationship between the methods of bounding time averages},
url = {http://arxiv.org/abs/1704.02475v2},
year = {2017}
}

RIS format (EndNote, RefMan)

TY  - UNPB
AB - The problem of finding bounds of time-averaged characteristics of dynamicalsystems, such as for example the bound on the mean energy dissipation rate in aturbulent flow governed by incompressible Navier-Stokes equations, isconsidered. It is shown that both the well-known background flow method ofDoering and Constantin and the direct method proposed by Seis in 2015correspond to the same quadratic storage functional in the framework of theindefinite storage functional method. In particular, a background flow can befound corresponding to the linear functional used in the direct method and viceversa. It is shown that any bound obtained with the background flow method canalso be obtained by the direct method. The reverse is true subject to anadditional constraint. The relative advantages of the three methods arediscussed.
AU - Chernyshenko,S
PY - 2017///
TI - Relationship between the methods of bounding time averages
UR - http://arxiv.org/abs/1704.02475v2
UR - http://hdl.handle.net/10044/1/49971
ER -