DEM-LES study of 3-D bubbling fluidized bed with immersed tubes

Chemical Engineering Science

Volumn 63, Issue 14, 2008, Pages 3654-3663

  Gui, Nan ^a   Fan, Jian Ren ^a   Luo, Kun ^a  

^a ZHEJIANG UNIVERSITY   (China)

Author keywords

Bubble; Discrete element method; Fluidization; Immersed tube; Multiphase flow; Powder technology

Indexed keywords

BUBBLE FORMATION; CHEMICAL MODIFICATION; COMPUTER SIMULATION; EDDY CURRENTS; EQUATIONS OF MOTION; FINITE DIFFERENCE METHOD; FLOW INTERACTIONS; FLUID DYNAMICS; FLUID MECHANICS; FLUIDIZATION; FLUIDIZED BEDS; FULL MOLD PROCESS; GASES; GEOMORPHOLOGY; LARGE EDDY SIMULATION; MIXING; NAVIER STOKES EQUATIONS; PARTICLE INTERACTIONS; SPHERES; SURVEYING; TENSORS; THEOREM PROVING; THREE DIMENSIONAL; TRACKING RADAR; TUBES (COMPONENTS); VOID FRACTION; VOLUME FRACTION;

BACK MIXING; BUBBLE MOTIONS; BUBBLING FLUIDIZED BED (BFB); DISCRETE ELEMENT METHOD (DEM); ELSEVIER (CO); EVOLUTION (CO); EXPERIMENTAL RESULTS; FLOW CONDITIONING; GAS PARTICLE INTERACTION; GAS PHASE; IMPACT FREQUENCY; LAG RANGE; LARGE-EDDY SIMULATION (LES); LES MODELLING; NAVIER STOKES EQUATIONS; NUMERICA L RESULTS; PARTICLE-PARTICLE INTERACTIONS; PERIODIC VARIATIONS; SIMILAR PATTERN; SOLID-PHASE; STRONG CORRELATIONS; TENSOR MODEL; THREE DIMENSIONAL (3D) NUMERICAL SIMULATIONS; VOLUME SEGMENTATION;

NUMERICAL METHODS;

EID: 46049086928     PISSN: 00092509     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ces.2008.04.038     Document Type: Article

References (22)

1. Bouilard J.X., Lyezkowski R.W., and Gidaspow D. Porosity distributions in a fluidized bed with an immersed obstacle. A.I.Ch.E. Journal 35 (1989) 908-922
2. Cundall P.A., and Strack O.D.L. A discrete numerical model for granular assemblies. Geotechnique 29 (1979) 47-65
3. Ding J., and Gidaspow D. A bubbling fluidization model using kinetic theory of granular flow. A.I.Ch.E. Journal 36 (1990) 523-538
4. Finnie I. Erosion of surface by solid particles. Wear 3 (1960) 87-159
5. Gera D., Gautam M., Tsuji Y., Kawaguchi T., and Tanka T. Computer simulation of bubbles in large-particle fluidized beds. Powder Technology 98 (1998) 38-47
6. Goldschmidt M.J.V., Beetstra R., and Kuipers J.A.M. Hydrodynamic modelling of dense gas-fluidised beds: comparison and validation of 3-D discrete particle and continuum models. Powder Technology 142 (2004) 23-47
7. Helland E., Occelli R., and Tadrist L. Computational study of fluctuating motions and cluster structures in gas-particle flows. International Journal of Multiphase Flow 28 (2002) 199-223
8. Hoomans B.P.B., Kuipers J.A.M., Briels W.J., and van Swaajj W.P.M. Discrete particle simulation of bubble and slug formation in a two dimensional gas-solid fluidized bed: a hard-sphere approach. Chemical Engineering Science 51 (1996) 99-118
9. Jackson R. The mechanics of fluidized beds: I. The stability of the state of uniform fluidization. Transactions of the Institute of Chemical Engineers 41 (1963) 13-21
10. Kuipers J.A.M., van Duin K.J., van Beckum F.P.H., and van Swaajj W.P.M. A numerical model of gas-fluidized beds. Chemical Engineering Science 47 (1992) 1913-1924
11. Kuipers J.A.M., van Duin K.J., van Beckum F.P.H., and van Swaajj W.P.M. Computer simulation of the hydrodynamics of a two-dimensional gas-fluidized bed. Computers & Chemical Engineering 17 (1993) 839-858
12. Lesieur M., and Metais O. New trends in large-eddy simulations of turbulence. Annual Review of Fluid Mechanics 28 (1996) 45-82
13. Lilly, D.K., 1987. In: Herring, J.R., McWilliams, J.C. (Eds.), Lecture Notes on Turbulence. World Scientific, Singapore, pp. 171-218.
14. Li, J., 2003. Euler-Lagrange simulation of flow structure formation and evolution in dense gas-solid flows. Ph.D. Thesis, Twente University, The Netherlands.
15. Rong D., Mikami T., and Horio M. Particle and Bubble Movements Around Tubes Immersed in Fluidized Beds-a Numerical Study. Chemical Engineering Science 54 (1999) 5737-5754
16. Soo S.L. Fluid Dynamics of Multiphase System (1967), Blaisdell, Waltham, MA
17. Tsuji Y., Kawaguchi T., and Tanaka T. Discrete particle simulation of two-dimensional fluidized bed. Powder Technology 77 (1993) 79-87
18. Tsuo Y.P., and Gidaspow D. Computation of flow patterns in circulating fluidized. A.I.Ch.E. Journal 36 (1990) 885-896
19. Wen C.Y., and Yu Y.H. A generalised method for predicting the minimum fluidization velocity. A.I.Ch.E. Journal 12 (1966) 610-612
20. Xu B.H., and Yu A.B. Numerical simulation of the gas-solid flow in a fluidized bed by combining discrete particle method with computational fluid dynamics. Chemical Engineering Science 52 (1997) 2785-2809
21. Yuu S., Umekage T., and Johno Y. Numerical simulation of air and particle motions in bubbling fluidized bed of small particles. Powder Technology 110 (2000) 158-168
22. Zhou H., Flamant G., and Gauthier D. DEM-LES of coal combustion in a bubbling fluidized bed. Part I: gas-particle turbulent flow structure. Chemical Engineering Science 59 (2004) 4193-4203