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

[11] NEW TECHNIQUE FOR TREATING MULTIPARTICLE SLOW VISCOUS FLOW - AXISYMMETRIC FLOW PAST SPHERES AND SPHEROIDS [J].

GLUCKMAN, MJ ;

PFEFFER, R ;

WEINBAUM, S .

JOURNAL OF FLUID MECHANICS, 1971, 50 (DEC29) :705-&

[12]

Horvath H., 1974, STAUB REINHALT LUFT, V34, P197

[13] MEASUREMENTS OF VISCOUS DRAG ON CYLINDERS AND CHAINS OF SPHERES WITH ASPECT RATIOS BETWEEN 2 AND 50 [J].

KASPER, G ;

NIIDA, T ;

YANG, M .

JOURNAL OF AEROSOL SCIENCE, 1985, 16 (06) :535-556

[14] THE MOTION OF ELLIPSOIDS IN A 2ND-ORDER FLUID [J].

KIM, S .

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, 1986, 21 (02) :255-269

[15]

Kim S, 1991, MICROHYDRODYNAMICS

[16] STOKES DRAG ON HOLLOW CYLINDERS AND CONGLOMERATES [J].

LASSO, IA ;

WEIDMAN, PD .

PHYSICS OF FLUIDS, 1986, 29 (12) :3921-3934

[17] STOKES FLOW PAST FINITE COAXIAL CLUSTERS OF SPHERES IN A CIRCULAR-CYLINDER [J].

LEICHTBERG, S ;

PFEFFER, R ;

WEINBAUM, S .

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 1976, 3 (02) :147-169

[18] FORM FACTORS FOR DEFORMED SPHEROIDS IN STOKES FLOW [J].

OBRIEN, V .

AICHE JOURNAL, 1968, 14 (06) :870-&

[19]

OBRIEN V, 1973, CAN J CHEM ENG, V51, P793, DOI 10.1002/cjce.5450510631

[20] INTERACTIONS BETWEEN 2 SPHERES FALLING ALONG THEIR LINE OF CENTERS IN A VISCOELASTIC FLUID [J].

RIDDLE, MJ ;

NARVAEZ, C ;

BIRD, RB .

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, 1977, 2 (01) :23-35

← 1 2 3 →