Computer simulation and experiments on two-phase flow in an inclined sedimentation vessel

Powder Technology

Volumn 94, Issue 1, 1997, Pages 35-49

  Laux, Harald ^a   Ytrehus, Tor ^a  

^a NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY   (Norway)

Author keywords

Compressible dispersed phase method; Computational fluid dynamics; Granular kinetic theory; Sedimentation; Two fluid model

Indexed keywords

COMPUTATIONAL FLUID DYNAMICS; COMPUTER SIMULATION; MATHEMATICAL MODELS; PHASE INTERFACES; PHOTOGRAPHY; SUSPENSIONS (FLUIDS); THICKNESS MEASUREMENT; TWO PHASE FLOW;

COMPRESSIBLE DISPERSED PHASE METHOD; GRANULAR KINETIC THEORY; INCLINED SEDIMENTATION VESSEL; MECHANISTIC TWO FLUID MODEL;

SEDIMENTATION;

COMPUTER MODELING; SEDIMENTATION TANK; STRATIFIED FLOW; TWO-PHASE FLOW;

ARTICLE; COMPUTER SIMULATION; DYNAMICS; KINETICS; LIQUID; SEDIMENTATION RATE; SOLID; THEORY;

EID: 0031282441     PISSN: 00325910     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0032-5910(97)03285-3     Document Type: Article

References (27)

1. A. Acrivos and E. Herbolzheimer, Enhanced sedimentation in settling tanks with inclined walls, J. Fluid Mech., 92 (1979) 435-457.
2. E.S.G. Shaqfeh and A. Acrivos, The effects of inertia on the buoyancy-driven convection flow in settling vessels, Phys. Fluids, 29 (12) (1986) 3935-3948.
3. B. Kapoor and A. Acrivos, Sedimentation and sediment flow in settling tanks with inclined walls, J. Fluid Mech., 290 (1995) 39-66.
4. E.S.G. Shaqfeh and A. Acrivos, Enhanced sedimentation in vessels with inclined walls: experimental observations, Phys. Fluids, 30 (7) (1987) 1905-1914.
5. A. Borhan, An experimental study of the effect of suspension concentration on the stability and efficiency of inclined settlers, Phys. Fluids A, 1(1) (1989) 108-123.
6. W.D. Hill, R.R. Rothfus and K. Li, Boundary-enhanced sedimentation due to settling convection, Int. J. Multiphase Flow, 3 (1977) 561-583.
7. E. Ponder, On sedimentation and rouleaux formation, Q. J. Exp. Physiol., 15 (1925) 235-252.
8. H. Nakamura and H. Kuroda, La cause de l'accélération de la vitesse de sédimentation des suspensions dans les récipients inclinés, Keijo J. Med., 8 (1937) 256-296.
9. E. Herbolzheimer, Stability of the flow during sedimentation in inclined channels, Phys. Fluids, 26 (8) (1983) 2034-2054.
10. E.S.G. Shaqfeh and A. Acrivos, The effects of inertia on the stability of the convective flow in inclined particle settlers, Phys. Fluids, 30 (4) (1987) 960-973.
11. A. Borhan and A. Acrivos, The sedimentation of nondilute suspensions in inclined settlers, Phys. Fluids, 31 (12) (1988) 3488-3501.
12. H. Laux, Derivation of a basic two-fluid model for dilute and dense dispersed gas-solid flow, Tech. Rep. MTF Rep. 110(a)94, Norwegian Institute of Technology, Trondheim, 1994.
13. D. Gidaspow, Multiphase Flow and Fluidization, Academic Press, New York, 1994.
14. A. Prosperetti and A.V. Jones, Pressure forces in disperse two-phase flow, Int. J. Multiphase Flow, 10 (4) (1984) 425-440.
15. S. Chapman and T.G. Cowling, The Mathematical Theory of Non-uniform Gases, Cambridge Mathematical Library, Cambridge, UK, 3rd edn., 1970.
16. S.B. Savage and D.J. Jeffrey, The stress tensor in granular flow at high shear rates, J. Fluid Mech., 110 (1981) 255-272.
17. J.T. Jenkins and S.B. Savage, A theory for the rapid flow of identical, smooth, nearly elastic, spherical particles, J. Fluid Mech., 130 (1983) 187-202.
18. C.K.K. Lun, S.B. Savage, D.J. Jeffrey and N. Chepurniy, Kinetic theories for granular flow: inelastic particles in couette flow and slightly inelastic particles in a general flowfield, J. Fluid Mech., 140 (1984) 223-256.
19. J. Ding and D. Gidaspow, A bubbling fluidization model using kinetic theory of granular flow, AIChE J., 36 (4) (1990) 523-538.
20. S. Ergun and A.A. Orning, Fluid flow through randomly packed fluidized beds, Ind. Eng. Chem., 41 (1949) 1179-1184.
21. E. Barnea and J. Mizrahi, A generalized approach to the fluid dynamics of paniculate systems: Part 1. General correlation for fluidization and sedimentation in solid multiparticle systems, Chem. Eng. J., 5 (1973) 171-189.
22. S.V. Patankar, Numerical Heat Transfer and Fluid Flow, Hemisphere, New York, 1980.
23. S.T. Johansen and H. Laux, An alternative method for numerical solution of dispersed multiphase flow equations, Proc. 2nd Int. Conf. Multiphase Flow, Kyoto, Japan, 1995, Vol. 2, pp. NU 1-8.
24. H. Laux, Ph.D. Thesis, Department of Applied Mechanics, Norwegian University of Science and Technology, Trondheim, 1997, in preparation.
25. C. Pöttker, Experimental study of the Boycott effect in two different sedimentation devices, Tech. Rep. MTF/Applied Mechanics, Norwegian University of Science and Technology, Trondheim, 1996.
26. J. Uglestad et al., Preparation and application of new monosized polymer particles, Prog. Polymer Sci., 17(1) (1992) 87-161.
27. R. Di Felice and E. Parodi, Wall effects on sedimentation velocity of suspensions in viscous flow, AIChE J., 42 (4) (1996) 927-931.