Publication detail

Numerical study of stirred tank with multiphase system

VONDÁL, J. HÁJEK, J. DOHNAL, M.

Original Title

Numerical study of stirred tank with multiphase system

Type

conference paper

Language

English

Original Abstract

The present work aims to develop a modelling approach for the simulation of multiphase stirred tank with floating particles, suitable for up-scaling studies. Multiphase numerical modeling is used for predicting velocity profiles in stirred liquid. Free surface is evaluated from gas-liquid phase interaction. Transient time is incorporated in simulation. Entire simulation is run in this mode. It includes impeller start-up phase from zero to the full speed. The methodology is demonstrated on a case of published stirred tank design previously analyzed by experimental methods. Scale-up of stirred tanks is a frequently faced problem, which is difficult in cases of multiphase systems, especially with floating particles. The methodology presented in this work is directly applicable in practical problems concerning the scale-up of such complex multiphase systems. Free surface effect on velocity profile and on drawn-down location of solids is presented. This is usually omitted and simplified as a flat surface.

Keywords

CFD; stirred tank; multiphase; simulation; mixing

Authors

VONDÁL, J.; HÁJEK, J.; DOHNAL, M.

RIV year

2015

Released

1. 10. 2015

Publisher

Aidic Servizi Srl

Location

Milano, Italy

ISBN

978-88-95608-36-5

Book

Proceedings of the 18th International Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (PRES 2015)

ISBN

2283-9216

Periodical

Chemical Engineering Transactions

Year of study

45

State

Republic of Italy

Pages from

1051

Pages to

1056

Pages count

6

BibTex

@inproceedings{BUT117250,
  author="Jiří {Vondál} and Jiří {Hájek} and Miloslav {Dohnal}",
  title="Numerical study of stirred tank with multiphase system",
  booktitle="Proceedings of the 18th International Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (PRES 2015)",
  year="2015",
  journal="Chemical Engineering Transactions",
  volume="45",
  pages="1051--1056",
  publisher="Aidic Servizi Srl",
  address="Milano, Italy",
  doi="10.3303/CET1545176",
  isbn="978-88-95608-36-5",
  issn="2283-9216"
}