Distribution of the turbulent kinetic dissipation rate in an agitated vessel

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F16%3A00466455" target="_blank" >RIV/67985874:_____/16:00466455 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/16:00300989
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Distribution of the turbulent kinetic dissipation rate in an agitated vessel
Original language description
The design of the agitated tanks depends on the proposed operating conditions and processesnfor that they are used for. Namely dissipation rate of the turbulent kinetic energy is importantnparameter for the scale-up modelling. The dissipation rate is commonly determined as integralnvalue based on power input of the impeller, but without information about distribution insidenthe agitated volume. The cumulative distributions of the dissipation rate within an agitatednvessel are estimated by evaluations of the CFD (Computational Fluid Dynamics) results,nwhere the data was obtained from RANS (Reynolds Averaged Navier-Stokes equations) andnLES (Large Eddy Simulations). The simulations were performed for an agitated vesselnequipped with four baffles and stirred by a standard Rushton turbine (tank diameter 0.3 m,nimpeller diameter 0.1 m, off-bottom clearance half of tank diameter, impeller speed 200 rpm).nThe values of the dissipation rate from the LES calculations were approximated by computingnthe SGS (Sub Grid Scale) dissipation rate.
Czech name
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Czech description
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Project
<a href="/en/project/GA16-20175S" target="_blank" >GA16-20175S: Local turbulent energy dissipation rate in dispersion systems</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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