DRAG ON CHAINS AND AGGLOMERATES OF SPHERES IN VISCOUS NEWTONIAN AND POWER-LAW FLUIDS

被引：7

作者：

CHHABRA, RP ^{[1
]}

SINGH, T ^{[1
]}

NANDRAJOG, S ^{[1
]}

机构：

[1] INDIAN INST TECHNOL,DEPT CHEM ENGN,KANPUR 208016,UTTAR PRADESH,INDIA

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1995年 / 73卷 / 04期

关键词：

CHAINS OF SPHERES; CLUSTERS OF SPHERES; DRAG; STOKES FLOW;

D O I：

10.1002/cjce.5450730417

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

New experimental data on the free settling velocity of straight chains (up to twenty spheres) and planar clusters of touching spheres in Newtonian and power law media are reported. The results embrace the following ranges of conditions: 0.65 less than or equal to n less than or equal to 1; Re < similar to 2.5 and 1.22 less than or equal to m less than or equal to 48.87 Pa . s(n). The straight chain drag measurements are in line with theoretical predictions for Newtonian fluids. The present results in power law fluids seem to suggest that it is possible to express the drag on a straight chain of spheres in terms of that on a single sphere of equal volume. Limited results with planar dusters are satisfactorily correlated using a volume equivalent sphere diameter.

引用

页码：566 / 571

页数：6

共 25 条

[1]

[Anonymous], 1993, BUBBLES DROPS PARTIC

[2] DRAG FORCE ON ISOLATED AXISYMMETRIC PARTICLES IN STOKES FLOW [J].

BOWEN, BD ;

MASLIYAH, JH .

CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 1973, 51 (01) :8-15

[3] TRANSPORT THROUGH MICROFILTRATION MEMBRANES - PARTICLE HYDRODYNAMICS AND FLUX REDUCTION [J].

BOWEN, WR ;

SHARIF, AO .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1994, 168 (02) :414-421

[4] STOKESIAN DYNAMICS [J].

BRADY, JF ;

BOSSIS, G .

ANNUAL REVIEW OF FLUID MECHANICS, 1988, 20 :111-157

[5]

CASWELL B, 1977, MECH VISCOELASTIC FL, V22, P19

[6]

CHHABRA RP, 1992, CAN J CHEM ENG, V70, P716, DOI 10.1002/cjce.5450700414

[7]

Clift R., 1978, BUBBLES DROPS PARTIC

[8] VISCOELASTIC FLUID-FLOW PAST A SUBMERGED SPHEROIDAL BODY [J].

DAIRENIEH, IS ;

MCHUGH, AJ .

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, 1985, 19 (01) :81-111

[9] INTERACTION BETWEEN 2 EQUAL-SIZED EQUAL-SETTLING SPHERES MOVING THROUGH A VISCOUS LIQUID [J].

EVESON, GF ;

HALL, EW ;

WARD, SG .

BRITISH JOURNAL OF APPLIED PHYSICS, 1959, 10 (01) :43-47

[10] AXISYMMETRIC SLOW VISCOUS FLOW PAST AN ARBITRARY CONVEX BODY OF REVOLUTION [J].

GLUCKMAN, MJ ;

WEINBAUM, S ;

PFEFFER, R .

JOURNAL OF FLUID MECHANICS, 1972, 55 (OCT24) :677-&

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