Investigation of swirling flow‐field in an isothermal vortexing fluidized bed combustor

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S. Sripattanapipat


A two-dimensional mathematical model of strongly swirling turbulence flow in the vortexing fluidized bed combustor (VFBC) is performed in this paper. Computations, based on finite volume method, were carried out by utilizing the standard k-gif.latex?\varepsilon model and the Algebraic Reynolds stress model (ASM) for the closure of the second-order correlation moment in the time averaged governing equations. It is observed that the Algebraic Reynolds stress model (ASM) performs better than the k-gif.latex?\varepsilon model in predicting the axial and tangential velocity profiles. In addition, computations using different numerical differencing schemes found that the use of upwind and hybrid schemes leads to slightly better results than that of QUICK and SOU schemes.


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Sripattanapipat, S. (2018). Investigation of swirling flow‐field in an isothermal vortexing fluidized bed combustor. Journal of Research and Applications in Mechanical Engineering, 2(2), 111–121. Retrieved from


[1] Sowards, N.K. Low pollution incineration of solid waste, U.S. Patent No. 3,834,326, 1974.

[2] Lin, C.H., Teng, J.T., Chyang, C.S. and Hsu, C.H. A study on the swirling flow field in the freeboard of a vortexting fluidized bed combustor, JSME international Journal, Series B, Vol. 41, 1998, pp. 538-545.

[3] Blaszczuk, A., Leszczynski, J. and Nowak, W. Simulation model of the mass balance in a supercritical circulating fluidized bed combustor, Powder Technology, Vol. 246, 2013, pp. 317-326.

[4] Zhang, J. and Nieh, S. Comprehensive modelling of pulverized coal combustion in a vortex combustor, Fuel, Vol. 76, 1997, pp. 123-131.

[5] Ridluan, A., Eiamsa-ard, S. and Promvonge P. Numerical simulation of 3D turbulent isothermal flow in a vortex combustor, International Communications in Heat and Mass Transfer, Vol. 34, 2007, pp. 860-869.

[6] Ezhil Kumar, P.K. and Mishra, D.P. Numerical simulation of cavity flow structure in an axisymmetric trapped vortex combustor, Aerospace Science and Technology, Vol. 21, 2012, pp. 16-23.

[7] Merlin, C., Domingo, P. and Vervisch, L. Large Eddy Simulation of turbulent flames in a trapped vortex combustor (TVC) - A flamelet presumed-pdf closure preserving laminar flame speed, Comptes Rendus Mécanique, Vol. 340, 2012, pp. 917-932.

[8] Patankar, S.V. Numerical Heat Transfer and Fluid Flow, Hemisphere, 1980, Washington, D.C.

[9] Wilcox, C.D. Turbulent Modelling for CFD, DCW Industries, Inc., California.

[10] Versteeg, H.K. and Malalasekera, W. An Introduction to Computational Fluid Dynamics, The Finite Volume Method, Longman Group Limited, 1995, England.

[11] Launder, B.E. and Spalding D.B. The Numerical Computation of Turbulent Flows, Computer Methods in Applied Mechanics and Engineering, North-Holland publishing Company, 1974, pp. 269-289.