CFD analysis to estimate the best validation approach for reverse flow hydrocyclone

S. Mohanty, J. L. Liow

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

Abstract

A numerical examination of the two-phase flow inside a hydrocyclone was conducted to quantify the turbulent velocity fluctuations. The simulations were conducted using the large eddy simulation (LES) approach comparing various subgrid-scale models. The numerical results were compared to published LDV data [7]. The study indicated that the tangential velocity is an insensitive parameter for validation because the fluctuations are less pronounced. In contrast, the turbulent fluctuations in the axial and tangential directions show substantial variations when modeled with increasingly larger mesh sizes. The numerical results also confirmed that the RMS velocity profiles predicted by the LES-Smagorinsky model provide a good prediction for the axial turbulent velocity fluctuations. The results also show that the LES-VOF approach predicts the split ratio of the product with a 0.45% error compared to the experimental data.

Original languageEnglish
Title of host publication22nd Australasian Fluid Mechanics Conference, AFMC 2020
EditorsHubert Chanson, Richard Brown
ISBN (Electronic)9781742723419
DOIs
Publication statusPublished (in print/issue) - 16 Dec 2020
Event22nd Australasian Fluid Mechanics Conference, AFMC 2020 - Brisbane, Australia
Duration: 7 Dec 202010 Dec 2020

Publication series

Name22nd Australasian Fluid Mechanics Conference, AFMC 2020
ISSN (Print)2653-0597

Conference

Conference22nd Australasian Fluid Mechanics Conference, AFMC 2020
Country/TerritoryAustralia
CityBrisbane
Period7/12/2010/12/20

Bibliographical note

Publisher Copyright:
© 2020 22nd Australasian Fluid Mechanics Conference, AFMC 2020. All rights reserved.

Keywords

  • Large eddy simulation
  • Subgrid-scale model
  • Turbulence fluctuation

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