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

doi:10.1016/j.cjche.2015.05.007

›› 2015, Vol. 23 ›› Issue (9): 1421-1428.DOI: 10.1016/j.cjche.2015.05.007

• Fluid Dynamics and Transport Phenomena • Next Articles

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

Jolius Gimbun^1,2, Noor Intan Shafinas Muhammad³, Woon Phui Law²

1 Centre of Excellence for Advanced Research in Fluid Flow, Universiti Malaysia Pahang, Pahang 26300, Malaysia;
2 Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Pahang 26300, Malaysia;
3 Faculty of Technology, Universiti Malaysia Pahang, Pahang 26300, Malaysia

Received:2014-05-17 Revised:2015-04-03 Online:2015-10-24 Published:2015-09-28
Supported by:
Supported by the Ministry of Education Malaysia through RACE (RDU121308) and FRGS (RDU130136).

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

Jolius Gimbun^1,2, Noor Intan Shafinas Muhammad³, Woon Phui Law²

1 Centre of Excellence for Advanced Research in Fluid Flow, Universiti Malaysia Pahang, Pahang 26300, Malaysia;
2 Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Pahang 26300, Malaysia;
3 Faculty of Technology, Universiti Malaysia Pahang, Pahang 26300, Malaysia

通讯作者: Jolius Gimbun
基金资助:
Supported by the Ministry of Education Malaysia through RACE (RDU121308) and FRGS (RDU130136).

Abstract

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.

Key words: Drying, Turbulence, Two-phase flow, CFD, Detached eddy simulation, Modelling strategy

摘要： 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.

关键词: Drying, Turbulence, Two-phase flow, CFD, Detached eddy simulation, Modelling strategy

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.

References

[1] F.G. Kieviet,Modelling Quality in Spray DryingPh.D. Thesis Endinhoven University of Technology, Netherlands, 1997.
[2] F.G. Kieviet, P.J.A.M. Kerkhorf, Using computational fluid dynamics tomodel product quality in spray drying: air flow temperature and humidity patterns, In: A.S. Mujumdar (Ed.), Drying, vol. A, Krakow, Poland 1996, pp. 256-266.
[3] C. Anandharamakrishnan, J. Gimbun, A.G.F. Stapley, C.D. Rielly, A study of particle histories during spray drying using computational fluid dynamics simulations, Drying Technol. 28 (2010) 566-576.
[4] D.B. Southwell, T.A.G. Langrish, The effect of swirl on flow stability in spray dryers, Chem. Eng. Res. Des. 79 (2001) 222-234.
[5] T.A.G. Langrish, I. Zbincinski, The effect of air inlet geometry and spray cone angle on the wall deposition rate in spray dryers, Trans. IChemE 72 (A) (1994) 420-430.
[6] I. Zbincinski, A. Delag, C. Strumillo, J. Adamiec, Advanced experimental analysis of drying kinetics in spray drying, Chem. Eng. J. 86 (2002) 207-216.
[7] D.J.E. Harvie, T.A.G. Langrish, D.F. Fletcher, Numerical simulations of gas flow patterns within a tall-form spray dryer, Chem. Eng. Res. Des. 79 (2001) 235-248.
[8] L.X. Huang, K. Kumar, A.S. Mujumdar, Simulation of spray dryer fitted with a rotary disk atomizer using a three-dimensional computational fluid dynamic model, Drying Technol. 22 (6) (2004) 1489-1515.
[9] P.R. Spalart, W.H. Jou, M. Strelets, S.R. Allmaras, Comments on the feasibility of les for wings and on a hybrid RANS/LES approach, Advances in DNS/LES, 1st AFOSR Int. Conference on DNS/LES, 4-8 Aug, Greyden Press, Columbus, OH, USA, 1997.
[10] B.E. Launder, D.B. Spalding, Numerical computation of turbulent flows, Comput. Methods Appl. Mech. Eng. 3 (2) (1974) 269-289.
[11] I. Zbicinski, X. Li, An investigation of error sources in computational fluid dynamics modelling of a co-current spray dryer, Chin. J. Chem. Eng. 12 (2004) 756-761.
[12] P.R. Spalart, S.R. Allmaras, A one-equation turbulence model for aerodynamic flows, AIAA Paper 92-0439, 1992.
[13] C. Anandharamakrishnan, J. Gimbun, A.G.F. Stapley, C.D. Rielly, Application of computational fluid dynamics (CFD) simulations to spray-freezing operations, Drying Technol. 28 (2010) 94-102.
[14] S.A. Morsi, A.J. Alexander, An investigation of particle trajectories in two-phase flow systems, J. Fluid Mech. 55 (1972) 193-208.
[15] P. Bagchi, S. Balachandar, Effect of turbulence on the drag and lift of a particle, Phys. Fluids 15 (2003) 3496-3513.
[16] K. Li, L. Zhou, C.K. Chan, Large-eddy simulation of ethanol spray-air combustion and its experimental validation, Chin. J. Chem. Eng. 22 (2014) 214-220.
[17] X. Li, I. Zbicinski, A sensitivity study on CFD modeling of co-current spray drying process, Drying Technol. 23 (8) (2005) 1681-1691.
[18] C. Lian, C.L. Merkle, Contrast between steady and time-averaged unsteady combustion simulations, Comput. Fluids 44 (2011) 328-338.
[19] M. Mezhericher, CFD-based modeling of transport phenomena for engineering problems, In: Proceedings of the World Congress on Engineering vol. III, 2012, (London, U.K.), Newswood Limited, Hong Kong.

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

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

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