Imperial College London
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Dr Konstantinos Steiros

Faculty of Engineering, Department of Aeronautics

Lecturer in Experimental Fluid Mechanics
 
 
 
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Contact

 

k.steiros

 
 
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Location

 

420bCity and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Steiros:2017:10.1017/jfm.2017.652,
author = {Steiros, K},
doi = {10.1017/jfm.2017.652},
journal = {Journal of Fluid Mechanics},
pages = {554--578},
title = {Transient torque in stirred tanks},
url = {http://dx.doi.org/10.1017/jfm.2017.652},
volume = {831},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The transient dynamics of stirred tanks whose impeller speed undergoes smooth or step changes is investigated. First, a low-order model is developed, linking the impeller torque with the ‘extent’ of the solid-body rotation in the tank, derived from an angular momentum balance in a control volume around the impeller. Utilisation of this model enables the prediction of the torque ‘spike’ appearing after an impulsive change of the shaft speed, and of the torque evolution during a quasi-steady transition. For the case of a small impulsive change in the shaft speed, a characteristic spin-up time is also proposed. Torque measurements performed in an unbaffled stirred tank show considerable agreement with the theoretical predictions.
AU  - Steiros,K
DO  - 10.1017/jfm.2017.652
EP  - 578
PY  - 2017///
SN  - 0022-1120
SP  - 554
TI  - Transient torque in stirred tanks
T2  - Journal of Fluid Mechanics
UR  - http://dx.doi.org/10.1017/jfm.2017.652
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000412936100006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.cambridge.org/core/journals/journal-of-fluid-mechanics/article/transient-torque-in-stirred-tanks/46B4BEBC2A3377042B3BC700DF9814D5
VL  - 831
ER  -
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