Abstract
The present study compares different drag models like Syamlal O’Brien, Gidaspow Ergun WenYu (GEW), and Gidaspow Schiller Naumann (GSN) in modeling fluidized-bed. With the help of the open-source CFD software OpenFOAM, time-averaged particle velocity components were calculated at five lateral locations of the fluidized bed for inlet gas velocities of 2.19 m/s and 3.28 m/s. Later these values were used for validation against experimental data generated by the National Energy Technology Laboratory (NETL). The Eulerian-Eulerian approach is adopted for the present 2D computational study with closures from the Kinetic Theory of Granular Flow (KTGF). The study identified the Syamlal O’Brien drag closure to be reliable in modeling the interfacial momentum transfer phenomenon between the phases. Thus, it accurately predicted the particle velocity distribution at different lateral locations of the fluidized bed. It was found that the velocity distribution is sensitive to the Specularity coefficient. It was also observed that the accuracy of the predictions made by GEW drag closure reduced significantly as the inlet gas velocity increased from 2.19 m/s to 3.28 m/s. Despite being least accurate in predicting particle velocities, GSN drag correlation provided valuable insights about its applicability for fixed bed applications.
Access provided by Autonomous University of Puebla. Download to read the full chapter text
Chapter PDF
Similar content being viewed by others
References
“Challenge problems,” NETL Multiphase Flow Science, 24-Mar-2021. [Online]. Available: https://mfix.netl.doe.gov/research/laboratory-studies/challenge-problems/. [Accessed: 20-Oct-2021].
B. Gopalan, M. Shahnam, R. Panday, J. Tucker, F. Shaffer, L. Shadle, J. Mei, W. Rogers, C. Guenther, and M. Syamlal, “Measurements of pressure drop and particle velocity in a pseudo-2-d rectangular bed with Geldart Group D particles,” Powder Technology, vol. 291, pp. 299–310, 2016.
R. G. Bentsen, “Effect of momentum transfer between fluid phases on effective mobility,” Journal of Petroleum Science and Engineering, vol. 21, no. 1-2, pp. 27–42, 1998.
H. Enwald, E. Peirano, and A.-E. Almstedt, “Eulerian two-phase flow theory applied to fluidization,” International Journal of Multiphase Flow, vol. 22, pp. 21–66, 1996.
M. Upadhyay, A. Kim, H. Kim, D. Lim, and H. Lim, “An assessment of drag models in Eulerian–eulerian CFD simulation of gas–solid flow hydrodynamics in circulating Fluidized Bed Riser,” ChemEngineering, vol. 4, no. 2, p. 37, 2020.
M. Lungu, H. Wang, J. Wang, Y. Yang, and F. Chen, “Two-fluid model simulations of the National Energy Technology Laboratory bubbling fluidized bed challenge problem,” Industrial & Engineering Chemistry Research, vol. 55, no. 17, pp. 5063–5077, 2016.
J. Ding and D. Gidaspow, “A bubbling fluidization model using kinetic theory of granular flow,” AIChE Journal, vol. 36, no. 4, pp. 523–538, 1990.
P. C. Johnson and R. Jackson, “Frictional–collisional constitutive relations for granular materials, with application to plane shearing,” Journal of Fluid Mechanics, vol. 176, no. -1, p. 67, 1987.
T. J. O’Brien, M. Syamlal, Particle cluster effects in the numerical simulation of a circulating fluidized bed, Proc. Of the 4th Int. Conf. on CFB, Somerset, USA, August 1-5, 1993, Preprint Volume, pp. 345—350
G. Cody, D. Goldfarb, G. Storch and A. Norris, "Particle granular temperature in gas fluidized beds", Powder Technology, vol. 87, no. 3, pp. 211-232, 1996. Available: https://doi.org/10.1016/0032-5910(96)03087-2.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Siva Karthikeya, M., Melvin, A., Variya, D., Murallidharan, J.S. (2023). A Comparison Study of Drag Correlations for a Dispersed Multiphase Flow in a Fluidized Bed. In: Bhattacharyya, S., Chattopadhyay, H. (eds) Fluid Mechanics and Fluid Power (Vol. 1). FMFP 2021. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-7055-9_80
Download citation
DOI: https://doi.org/10.1007/978-981-19-7055-9_80
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-19-7054-2
Online ISBN: 978-981-19-7055-9
eBook Packages: EngineeringEngineering (R0)