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:2017:10.1016/j.ijheatfluidflow.2017.06.002,
author = {Verso, L and van, Reeuwijk M and Gurka, R and Diamessis, PJ and Taylor, ZJ and Liberzon, A},
doi = {10.1016/j.ijheatfluidflow.2017.06.002},
journal = {International Journal of Heat and Fluid Flow},
pages = {127--136},
title = {Experimental study of the initial growth of a localized turbulent patch in a stably stratified fluid},
url = {http://dx.doi.org/10.1016/j.ijheatfluidflow.2017.06.002},
volume = {66},
year = {2017}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - We present a laboratory experiment of the initial growth of a turbulent patch in a stably stratified fluid. The patch is created due to a localized source of turbulence, generated by a horizontally oriented and vertically oscillating grid much smaller than the tank size and far from solid boundaries. Synchronized and overlapping particle image velocimetry(PIV) and planar laser induced fluorescence (PLIF) measurements capture the evolution of the patch through its initial growth until it reached a maximum size. The simultaneous measurements of density and velocity fields allow for a direct quantification of the distribution of kinetic energy, buoyancy and degree of mixing within the patch. We can also relate the propagation speed of the turbulent/non-turbulent interface and its thickness to the properties of the turbulent fluid inside the evolving patch. The velocity measurements in this setup indicate significant transient effects inside the patch during its growth. A local analysis of the turbulent/non-turbulent interface provides direct measurements of the entrainment velocity we as compared to the local vertical velocity and turbulent intensity at the proximity of the interface. The detailed information about the growth of localized sources of turbulence in stratified environment might be of use in stealth design of autonomous underwater vehicles.
AU - Verso,L
AU - van,Reeuwijk M
AU - Gurka,R
AU - Diamessis,PJ
AU - Taylor,ZJ
AU - Liberzon,A
DO - 10.1016/j.ijheatfluidflow.2017.06.002
EP - 136
PY - 2017///
SN - 0142-727X
SP - 127
TI - Experimental study of the initial growth of a localized turbulent patch in a stably stratified fluid
T2 - International Journal of Heat and Fluid Flow
UR - http://dx.doi.org/10.1016/j.ijheatfluidflow.2017.06.002
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000407524500012&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/57443
VL - 66
ER -