Mixing times and mixing time correlations revisited by means of Les

Hugo Hartmann; Jos J. Derksen; Harry E.A. Van Den Akker

Mixing times and mixing time correlations revisited by means of Les

Hugo Hartmann, Jos J. Derksen, Harry E.A. Van Den Akker

Research output: Contribution to conference › Paper › peer-review

Abstract

The mixing performance in a turbulent stirred vessel provided with a Rushton turbine is studied numerically by means of large eddy simulations (LES). To the LES (with a Smagorinsky subgrid scale model), a finite volume scheme is coupled that solves the convection-diffusion equation of a passive tracer. Numerical simulations such as those presented possess all information needed to enable a careful comparison between simulated mixing times and those obtained by experiments and correlations. A parameter study is carried out by varying impeller size and injection posotion of a passive tracer. Generally, the simulated mixing times are close to empirical mixing correlations. Finally, Ruszkowski's correlation is re-evaluated and commented.

Original language	English
Pages	3991
Number of pages	1
Publication status	Published - 2005
Event	05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States Duration: 30 Oct 2005 → 4 Nov 2005

Conference

Conference	05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
Country/Territory	United States
City	Cincinnati, OH
Period	30/10/05 → 4/11/05

Cite this

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title = "Mixing times and mixing time correlations revisited by means of Les",

abstract = "The mixing performance in a turbulent stirred vessel provided with a Rushton turbine is studied numerically by means of large eddy simulations (LES). To the LES (with a Smagorinsky subgrid scale model), a finite volume scheme is coupled that solves the convection-diffusion equation of a passive tracer. Numerical simulations such as those presented possess all information needed to enable a careful comparison between simulated mixing times and those obtained by experiments and correlations. A parameter study is carried out by varying impeller size and injection posotion of a passive tracer. Generally, the simulated mixing times are close to empirical mixing correlations. Finally, Ruszkowski's correlation is re-evaluated and commented.",

author = "Hugo Hartmann and Derksen, \{Jos J.\} and \{Van Den Akker\}, \{Harry E.A.\}",

year = "2005",

language = "English",

pages = "3991",

note = "05AIChE: 2005 AIChE Annual Meeting and Fall Showcase ; Conference date: 30-10-2005 Through 04-11-2005",

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TY - CONF

T1 - Mixing times and mixing time correlations revisited by means of Les

AU - Hartmann, Hugo

AU - Derksen, Jos J.

AU - Van Den Akker, Harry E.A.

PY - 2005

Y1 - 2005

N2 - The mixing performance in a turbulent stirred vessel provided with a Rushton turbine is studied numerically by means of large eddy simulations (LES). To the LES (with a Smagorinsky subgrid scale model), a finite volume scheme is coupled that solves the convection-diffusion equation of a passive tracer. Numerical simulations such as those presented possess all information needed to enable a careful comparison between simulated mixing times and those obtained by experiments and correlations. A parameter study is carried out by varying impeller size and injection posotion of a passive tracer. Generally, the simulated mixing times are close to empirical mixing correlations. Finally, Ruszkowski's correlation is re-evaluated and commented.

AB - The mixing performance in a turbulent stirred vessel provided with a Rushton turbine is studied numerically by means of large eddy simulations (LES). To the LES (with a Smagorinsky subgrid scale model), a finite volume scheme is coupled that solves the convection-diffusion equation of a passive tracer. Numerical simulations such as those presented possess all information needed to enable a careful comparison between simulated mixing times and those obtained by experiments and correlations. A parameter study is carried out by varying impeller size and injection posotion of a passive tracer. Generally, the simulated mixing times are close to empirical mixing correlations. Finally, Ruszkowski's correlation is re-evaluated and commented.

UR - https://www.scopus.com/pages/publications/33645640999

M3 - Paper

AN - SCOPUS:33645640999

SP - 3991

T2 - 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase

Y2 - 30 October 2005 through 4 November 2005

ER -

Mixing times and mixing time correlations revisited by means of Les

Abstract

Conference

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