Detail publikačního výsledku

Numerical study of stirred tank with multiphase system

VONDÁL, J.; HÁJEK, J.; DOHNAL, M.

Originální název

Numerical study of stirred tank with multiphase system

Anglický název

Numerical study of stirred tank with multiphase system

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

CFD; stirred tank; multiphase; simulation; mixing

Klíčová slova v angličtině

CFD; stirred tank; multiphase; simulation; mixing

Autoři

VONDÁL, J.; HÁJEK, J.; DOHNAL, M.

Rok RIV

2016

Vydáno

01.10.2015

Nakladatel

Aidic Servizi Srl

Místo

Milano, Italy

ISBN

978-88-95608-36-5

Kniha

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

ISSN

2283-9216

Periodikum

Chemical Engineering Transactions

Svazek

45

Stát

Italská republika

Strany od

1051

Strany do

1056

Strany počet

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"
}