Imperial College London
Alternate

Dr Edward R Smith

Faculty of Engineering, Department of Mechanical Engineering

Academic Visitor
 
 
 
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Contact

 

+44 (0)7792 677 912edward.smith05 CV

 
 
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Location

 

149Roderic Hill BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Smith:2015:10.1063/1.4935213,
author = {Smith, ER},
doi = {10.1063/1.4935213},
journal = {Physics of Fluids},
title = {A molecular dynamics simulation of the turbulent Couette minimal flow unit},
url = {http://dx.doi.org/10.1063/1.4935213},
volume = {27},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A molecular dynamics simulation of planar Couette flow is presented for the minimalchannel in which turbulence structures can be sustained. Evolution over a single break-down and regeneration cycle is compared to computational fluid dynamics simula-tions. Qualitative similar structures are observed and turbulent statistics show excellentquantitative agreement. The molecular scale law of the wall is presented in whichstick-slip molecular wall-fluid interactions replace the no-slip conditions. The impactof grid resolution is explored and the observed structures are seen to be dependenton averaging time and length scales. The kinetic energy spectra show that a range ofscales are present in the molecular system and that spectral content is dependent onthe grid resolution employed. The subgrid velocity of the molecules is studied usingjoint probability density functions, molecular trajectories, diffusion, and Lagrangianstatistics. The importance of sub-grid scales, relevance of the Kolmogorov lengthscale,and implications of molecular turbulence are discussed.
AU  - Smith,ER
DO  - 10.1063/1.4935213
PY  - 2015///
SN  - 1070-6631
TI  - A molecular dynamics simulation of the turbulent Couette minimal flow unit
T2  - Physics of Fluids
UR  - http://dx.doi.org/10.1063/1.4935213
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000365687400030&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/53644
VL  - 27
ER  -
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