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{Verso:2017:10.1103/PhysRevFluids.2.104605,
author = {Verso, L and van, Reeuwijk M and Liberzon, A},
doi = {10.1103/PhysRevFluids.2.104605},
journal = {PHYSICAL REVIEW FLUIDS},
title = {Steady state model and experiment for an oscillating grid turbulent two-layer stratified flow},
url = {http://dx.doi.org/10.1103/PhysRevFluids.2.104605},
volume = {2},
year = {2017}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Turbulence generated by an oscillating grid in a two-layer stably stratified system is a classical flow utilized to study various aspects of turbulence in presence of stratification without mean shear. This flow evolves in a quasisteady state, in which the layer thickness and density difference evolves in a quasisteady manner due to the large separation of timescales between the turbulence and the setup. We present an extension of the classical setup that enables full steady state conditions and in which the entrainment velocity can be prescribed separately from the Richardson number. We develop a theoretical box-model and show that the model is in good agreement with the experiments. The model allows to predict the transient response of the system for a variety of initial conditions and the imposed steady state. The new setup is necessary to obtain the steady position of the density interface, for example, when using advanced optical techniques to measure the small-scale features of turbulence near the interface.
AU - Verso,L
AU - van,Reeuwijk M
AU - Liberzon,A
DO - 10.1103/PhysRevFluids.2.104605
PY - 2017///
SN - 2469-990X
TI - Steady state model and experiment for an oscillating grid turbulent two-layer stratified flow
T2 - PHYSICAL REVIEW FLUIDS
UR - http://dx.doi.org/10.1103/PhysRevFluids.2.104605
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000413908700002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/54665
VL - 2
ER -