Unsteady RANS and detached eddy simulation of themultiphase flow in a co-current spray drying

Jolius Gimbun; Noor Intan Shafinas Muhammad; Woon Phui Law

doi:10.1016/j.cjche.2015.05.007

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Unsteady RANS and detached eddy simulation of themultiphase flow in a co-current spray drying

流体力学与传递现象 | Updated：2026-01-06

- Unsteady RANS and detached eddy simulation of themultiphase flow in a co-current spray drying
- Chinese Journal of Chemical Engineering Vol. 23, Issue 9, Pages: 1421-1428(2015)
- Affiliations：
  
  1. Centre of Excellence for Advanced Research in Fluid Flow, Universiti Malaysia Pahang,Pahang,Malaysia,26300
  2. Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang,Pahang,Malaysia,26300
  3. Faculty of Technology, Universiti Malaysia Pahang,Pahang,Malaysia,26300
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2015.05.007
  CLC：
- Published：2015
- Accepted：
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Jolius Gimbun, Noor Intan Shafinas Muhammad, Woon Phui Law. Unsteady RANS and detached eddy simulation of themultiphase flow in a co-current spray drying[J]. , 2015, 23(9): 1421-1428.
DOI：

Jolius Gimbun, Noor Intan Shafinas Muhammad, Woon Phui Law. Unsteady RANS and detached eddy simulation of themultiphase flow in a co-current spray drying[J]. , 2015, 23(9): 1421-1428. DOI： 10.1016/j.cjche.2015.05.007.

摘要

Abstract

A detached eddy simulation (DES) and a

k-ε

-based Reynolds-averaged Navier-Stokes (RANS) calculation on the co-current spray drying chamber is presented. The DES used here is based on the Spalart-Allmaras (SA) turbulence model

whereas the standard

k-ε

(SKE) was considered here for comparison purposes. Predictions of the mean axial velocity

temperature and humidity profile have been evaluated and compared with experimental measurements. The effects of the turbulence model on the predictions of the mean axial velocity

temperature and the humidity profile are most noticeable in the (highly anisotropic) spraying region. The findings suggest that DES provide amore accurate prediction (with error less than 5%) of the flow field in a spray drying chamber comparedwith RANS-based

k-ε

models. The DES simulation also confirmed the presence of anisotropic turbulent flow in the spray dryer from the analysis of the velocity component fluctuations and turbulent structure as illustrated by the Q-criterion.

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