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State of the Art and Future Trends in CFD Simulation of Stirred Vessel Hydrodynamics

✍ Scribed by M. Sommerfeld; S. Decker

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
203 KB
Volume
27
Category
Article
ISSN
0930-7516

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✦ Synopsis

Abstract

Computational fluid dynamics (CFD) has become a widely used tool for analysing, optimising and supporting the design of mixing processes in stirred vessels. The present contribution gives a brief summary of the methods applied for numerically treating the power input by the impeller, such as empirical methods, the multiple frame of reference approach and unsteady methods using sliding or clicking meshes. Thereafter, recent developments and trends in the numerical computation of single phase flows in stirred vessels on the basis of DNS (direct numerical simulations), LES (large eddy simulations) and RANS (Reynolds‐averaged Navier‐Stokes) approaches are summarised. Since many operations in stirred vessels involve at least two phases, also the methods for modelling these flows, such as the two‐fluid method and the Euler/Lagrange approach are briefly described and recent applications are reviewed. Finally, also own calculations for single‐phase mixing and particle dispersion in a stirred vessel using the Euler/Lagrange approach are introduced emphasising some recent developments.

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