Imperial College London

Dr Maarten van Reeuwijk

Faculty of EngineeringDepartment of Civil and Environmental Engineering

Reader in Environmental Fluid Mechanics
 
 
 
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Contact

 

+44 (0)20 7594 6059m.vanreeuwijk Website

 
 
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Assistant

 

Miss Rebecca Naessens +44 (0)20 7594 5990

 
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Location

 

331Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Alpresa:2018:10.1063/1.4996916,
author = {Alpresa, P and Sherwin, S and Weinberg, P and van, Reeuwijk M},
doi = {10.1063/1.4996916},
journal = {PHYSICS OF FLUIDS},
title = {Orbitally shaken shallow fluid layers. I. Regime classification},
url = {http://dx.doi.org/10.1063/1.4996916},
volume = {30},
year = {2018}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Orbital shakers are simple devices that provide mixing, aeration, and shear stress at multiple scales and high throughput. For this reason, they are extensively used in a wide range of applications from protein production to bacterial biofilms and endothelial cell experiments. This study focuses on the behaviour of orbitally shaken shallow fluid layers in cylindrical containers. In order to investigate the behaviour over a wide range of different conditions, a significant number of numerical simulations are carried out under different configuration parameters. We demonstrate that potential theory—despite the relatively low Reynolds number of the system—describes the free-surface amplitude well and the velocity field reasonably well, except when the forcing frequency is close to a natural frequency and resonance occurs. By classifying the simulations into non-breaking, breaking, and breaking with part of the bottom uncovered, it is shown that the onset of wave breaking is well described by Δh/(2R) = 0.7Γ, where Δh is the free-surface amplitude, R is the container radius, and Γ is the container aspect ratio; Δh can be well approximated using the potential theory. This result is in agreement with standard wave breaking theories although the significant inertial forcing causes wave breaking at lower amplitudes.
AU - Alpresa,P
AU - Sherwin,S
AU - Weinberg,P
AU - van,Reeuwijk M
DO - 10.1063/1.4996916
PY - 2018///
SN - 1070-6631
TI - Orbitally shaken shallow fluid layers. I. Regime classification
T2 - PHYSICS OF FLUIDS
UR - http://dx.doi.org/10.1063/1.4996916
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000428930500031&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/59067
VL - 30
ER -