Liquid–solid suspension theory with reference to possible applications in geology

Basin Research - Tập 22 Số 4 - Trang 591-602 - 2010
Renzo Di Felice1
1Dipartimento di Ingegneria Chimica e di Processo “G.B. Bonino”, Universitá degli Studi di Genova, via Opera Pia 15, 16145 Genova, Italy

Tóm tắt

ABSTRACTThe first part of this paper provides an overview of the state of the art of the hydrodynamics of liquid suspensions of solid particles. It is shown that knowledge of the suspension Archimedes number is sufficient to estimate the voidage–velocity parameters for suspensions of solids possessing homogenous characteristics, thereby completely defining the system from a fluid dynamic point of view. A general relation is presented which will indicate if a solid–fluid system will be in the fixed or in the suspended state depending on the relative velocity between the two phases. Modifications of the previous approach when the solid particles are not spherical have been also indicated. The basic features of the pseudo‐fluid approach are then presented. This approach is useful when the solids making up the suspension have different sizes: by the introduction of the pseudo‐fluid apparent characteristics (density and viscosity) it is possible to make basic estimations of the suspension behaviour. The second part of the paper outlines possible application of suspension theory to geological phenomena, such as the vertical transport of water–sand suspensions. Aspects of interest are the minimum pressure required for the transport of the suspension, the estimation of suspension flow rate through an overall pressure balance, the vertical transport of large ‘breccia’ blocks and the behaviour of the solid particles present in the rising conduit once the overpressure falls below the minimum value needed to sustain the flow. Finally, a warning is given on the limitations of the presented relationships (e.g. the assumption of homogeneous solid dispersion in the suspension) and on situations such as inclined conduits which require a different approach.

Từ khóa


Tài liệu tham khảo

10.5962/bhl.title.38150

Barnea E., 1973, A generalized approach to the fluid dynamics of particulate Systems, Chem. Eng. Sci., 5, 171

10.1017/S0022112072001399

Cleasby J.L., 1981, Predicting fluidization and expansion of filter media, Environ. Eng. Div. J., 107, 455, 10.1061/JEEGAV.0001169

Davies R.J., 2007, Birth of a mud volcano, East Java, 29 May 2006, 17, 4

10.1016/0009-2509(95)98838-6

10.1016/S0009-2509(00)00027-0

Di Felice R., 2002, Liquid fluidised beds in slugging mode, pressure drop and flow regime transition, 123, 256

10.1016/0009-2509(91)87035-B

10.1111/j.1365-3091.2004.00634.x

10.1002/andp.19063240204

Fox R.W., 1998, Introduction to Fluid Mechanics

10.1111/j.1365-3091.2004.00608.x

Gernon T.M., 2008, Gas‐fluidisation in an experimental tapered bed, insights into processes in diverging volcanic conduits, 174, 49

Gibilaro L.G., 2001, Fluidization‐Dynamics

10.1016/j.ces.2006.08.030

Guhman A.I., 1992, Boiling sand springs, Dismal River, Nebraska, agents for formation of vertical cylindrical structures and geomorphic change, 20, 8

10.1016/j.powtec.2007.08.021

Hubbard S.M., 2007, An outcrop example of large‐scale conglomeratic intrusions sourced from deep‐water channel deposits, Cerro Toro Formation, Magallanes basin, Southern Chile. in Sand injectites, implications for hydrocarbon exploration and production (A Hurst and J Cartwright eds.), 87, 199

10.1111/j.1365-3121.2004.00587.x

10.1144/0016-764902-025

10.1080/00986448908940189

Kruelle C.A., 2009, Physics of granular matter, pattern formation and applications, 20, 113

10.1021/ie0006864

10.1111/j.1365-3091.1975.tb00290.x

10.1016/S0894-1777(02)00176-0

10.1046/j.1365-3091.2002.00432.x

Newitt D.M., 1961, Hydraulic conveying of solids in vertical pipes, Trans. Instr. Chem. Eng., 39, 93

10.5408/1089-9995-54.5.578

10.1144/GSL.SP.1995.094.01.06

10.1016/S0013-7952(96)00040-3

10.1144/GSL.SP.1987.029.01.02

Owen G., 1996, Experimental soft‐sediment deformation, structures formed by the liquefaction of unconsolidated sands and some ancient example, 43, 279

10.1111/j.1365-3091.1983.tb00690.x

Richards R.H., 1940, Textbook of Ore Dressing

Richardson J.F., 1971, Fluidisation

Richardson J.F., 1954, Sedimentation and fluidisation, part I, 32, 35

10.1016/S0037-0738(99)00093-7

Seed H.B., 1979, Soil liquefaction and cyclic mobility evaluation for level ground during earthquakes, J. Geotechn. Eng. Div., 105, 201, 10.1061/AJGEB6.0000768

10.1016/0032-5910(94)02877-X

10.1046/j.1365-3091.2002.00430.x

Wen C.Y., 1966, Mechanics of fluidization, Chem. Eng. Progr. Symp. Ser., 62, 100

Thông tin
Thông tin xuất bản

Basin Research

Tập 22 Số 4

591-602

Thông tin tác giả