Modeling turbulent flow in a cylindrical tank agitated by side entering 45° inclined blade turbine using computational fluid dynamics (CFD)

N. N. Fathonah, A. Susanti, T. Nurtono, S. Winardi*, S. Machmudah, Kusdianto, Widiyastuti

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Agitated tank with side entering mixer is commonly used in industrial processes. This study aims to determine the flow pattern and mixing time as function of impeller diameter, impeller rotation speed, and number of impeller blades. The single phase system with water as working fluid inside the stirred tank was modeled using the combination of multiple reference frame (MRF) and k-ϵ turbulence model and calculated using the computational fluid dynamics (CFD) method. The size of stirred tank is 0.4 m and 0.6 m for diameter and height, respectively. The agitated tank was equipped with 45° inclined blade turbine impeller. Four different impeller in diameter and number of blades have been elucidated under various operating condition of impeller rotation speed from l00 rpm until 400 rpm. The simulation results showed that the flow pattern formed is single-loop circulation and vortex, depended on stirred tank configuration and operating conditions. Besides, there were variations in flow patterns change over time for each simulation. This is also affected on mixing performance in term of mixing time to achieve homogenous mixture.

Original languageEnglish
Title of host publicationInternational Seminar on Fundamental and Application of Chemical Engineering 2016, ISFAChE 2016
Subtitle of host publicationProceedings of the 3rd International Seminar on Fundamental and Application of Chemical Engineering 2016
Editors Widiyastuti, Fadlilatul Taufany, Siti Nurkhamidah
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415102
DOIs
Publication statusPublished - 24 May 2017
Event3rd International Seminar on Fundamental and Application of Chemical Engineering 2016, ISFAChE 2016 - East Java, Indonesia
Duration: 1 Nov 20162 Nov 2016

Publication series

NameAIP Conference Proceedings
Volume1840
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Seminar on Fundamental and Application of Chemical Engineering 2016, ISFAChE 2016
Country/TerritoryIndonesia
CityEast Java
Period1/11/162/11/16

Keywords

  • CFD
  • cylindrical tank
  • inclined blade turbine
  • modeling
  • side entering

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