CFD simulation of multiphase fluid flow in a two-dimensional gas-solid fluidized bed using two different turbulence models

Asyari Daryus, Ahmad Indra Siswantara, Budiarso, Gun Gun R. Gunadi, Hariyotejo Pujowidodo

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

1 Citation (Scopus)

Abstract

This paper presents the numerical analysis of fluid flow in a two-dimensional fluidized bed through simulations. The experiment data of Geldart B particles fluidized bed is used to validate the simulation results. Simulations has been conducted using Computational Fluids Dynamics (CFD) method, Eulerian Eulerian two fluid approach with Gidaspow drag model, kinetic theory of granular flow, and two turbulence models. Two different turbulence models of Standard (STD) k-ϵ and Renormalization Group (RNG) k-ϵ are used since they are proven applicable for high complexity flows such as in the fluidized bed. Simulations were conducted using the commercial software CFDSOF®. From the experiments obtained that the minimum fluidization velocity is 0.4 m/s and the pressure drop across the bed is around 700 Pa. Both models cannot predict the pressure drop across the bed well below the minimum fluidization velocity, but above it both models give the closer results to the experiment data and the RNG k-ϵ model predicts closer in comparison to the STD k-ϵ model. The STD k-ϵ model predicts the turbulent regime sooner and the static pressure distribution a little bit higher.

Original languageEnglish
Title of host publication10th International Meeting of Advances in Thermofluids, IMAT 2018 - Smart City
Subtitle of host publicationAdvances in Thermofluid Technology in Tropical Urban Development
EditorsArdiyansyah Yatim, Nasruddin, Muhammad Arif Budiyanto, Nyayu Aisyah, Muhamad Idrus Alhamid
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417908
DOIs
Publication statusPublished - 25 Jan 2019
Event10th International Meeting of Advances in Thermofluids - Smart City: Advances in Thermofluid Technology in Tropical Urban Development, IMAT 2018 - Kuta, Bali, Indonesia
Duration: 16 Nov 201817 Nov 2018

Publication series

NameAIP Conference Proceedings
Volume2062
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference10th International Meeting of Advances in Thermofluids - Smart City: Advances in Thermofluid Technology in Tropical Urban Development, IMAT 2018
CountryIndonesia
CityKuta, Bali
Period16/11/1817/11/18

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